Subdivision and Development Servicing Bylaw No. 5382
Langley, British Columbia
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THE CORPORATION OF THE TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING BYLAW 2019 NO. 5382
CONSOLIDATED FOR CONVENIENCE ONLY
EXPLANATORY NOTE
Bylaw 2019 No. 5382 repeals the Corporation of the Township of Langley Subdivision and
Development Servicing Bylaw 2011 No. 4861 and all amendments.
Amending Bylaw No. 5839 - adopted February 27, 2023
Bylaw No. 5839 amends Development Application Procedures Bylaw No. 5760, Subdivision and
Development Servicing Bylaw 2019 No. 5382, and Development Permit Delegation Bylaw 2016
No. 5246 to streamline the development application review and approval process
Amending Bylaw No. 5803 - adopted April 15, 2024
Bylaw No. 5803 amends Subdivision and Development Servicing Bylaw 2019 No. 5382 by
changing the service level designation from Level 4 - Rural to Level 1 - Urban of the properties
located at 23699 and 23737 Fraser Highway to coincide with rezoning from rural to industrial.
Amending Bylaw No. 6076 - adopted December 2, 2024
Bylaw No. 6076 amends the Subdivision and Development Servicing Bylaw 2019 No. 5382 by
updating required service standards for water meters, bollards, and stormwater infrastructure
design criteria.
THIS IS A CONSOLIDATED BYLAW PREPARED BY THE CORPORATION OF
THE TOWNSHIP OF LANGLEY FOR CONVENIENCE ONLY. THE TOWNSHIP
DOES NOT WARRANT THAT THE INFORMATION CONTAINED IN THIS
CONSOLIDATION IS CURRENT. IT IS THE RESPONSIBILITY OF THE PERSON
USING THIS CONSOLIDATION TO ENSURE THAT IT ACCURATELY
REFLECTS CURRENT BYLAW PROVISIONS.
THE CORPORATION OF THE TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING BYLAW 2019 NO. 5382
The Municipal Council of the Corporation of the Township of Langley, in Open Meeting
Assembled, ENACTS AS FOLLOWS:
1. This Bylaw may be cited for all purposes as "Subdivision and Development Servicing
Bylaw 2019 No. 5382".
Bylaw No. 5382
Page 3
THE CORPORATION OF THE TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING BYLAW 2019 NO. 5382
TABLE OF CONTENTS
1.0
Title ....................................................................................................................... 4
2.0
Definition .............................................................................................................. 4
3.0
Administration ..................................................................................................... 5
3.1
Authority .............................................................................................................. 5
3.2
Inspection ............................................................................................................ 5
3.3
Severability ......................................................................................................... 5
3.4
Prohibitions ......................................................................................................... 6
3.5
Offences and Penalties ....................................................................................... 6
3.6
Fees .................................................................................................................... 6
3.7
Approving Officer - Minimum Frontage ............................................................... 6
4.0
Responsibility for Works and Services .............................................................. 7
5.0
Duties of Owner, Owner's Engineer and Landscape Architect ........................ 8
5.1
Duties of Owner .................................................................................................. 8
5.2
Duties of Owner's Engineer and Landscape Architect ......................................... 9
6.0
Works and Services Required........................................................................... 10
6.1
Provision and Standards of Works and Services ............................................... 10
6.2
Highways .......................................................................................................... 10
6.3
Works and Services within Subdivisions ............................................................ 10
6.4
Water, Sewer and Drainage .............................................................................. 11
6.5
Works and Services on Highways and on Building Sites ................................... 11
6.6
Rights-of-Way and Easements .......................................................................... 12
6.7
Waiver of Servicing Requirements .................................................................... 12
7.0
Commencement of Work ................................................................................... 13
8.0
Completion of the Works and Services ............................................................ 14
8.1
Servicing Agreements and Security ................................................................... 14
8.2
Cash in Lieu of Construction ............................................................................. 14
9.0
Minimum Service Level Standards ................................................................... 15
10.0
Upsizing and Extending Works and Services .................................................. 15
11.0
Bylaw Schedules ............................................................................................... 15
Schedule A: Minimum Service Level Standards
Schedule B: Design Criteria
Schedule C: Construction Requirements and Specifications
Schedule D: Approved Materials and Products
Schedule E: Accepted Street Trees and Plants Not Accepted For Use
Schedule F:
Servicing Agreement
Schedule G: Standard Forms
Schedule H: Supplementary Detail Drawings
Schedule I:
Tree Protection
12.0
Repeal .............................................................................................................. 15
Bylaw No. 5382
Page 4
1.0 TITLE
This Bylaw may be cited as the "Subdivision and Development Servicing Bylaw 2019 No.
5382".
2.0 DEFINITION
In this Bylaw, unless the context otherwise requires, the following words and terms shall
have the meanings hereinafter assigned to them:
Accepted Drawings
means drawings accepted for construction by the Municipal
Engineer in accordance with Schedule B, Section DR6.3.
Approving Officer
means the officer so appointed by Council resolution according to
the provisions of the Land Title Act.
Chief Inspector
means that person appointed as head of the Permit, License and
Inspection Services Department or their representative.
Development
means a Subdivision or any construction for which a building
permit is required.
Essential Services
means Municipal services including water, sanitary and storm
sewer systems, lot grading, asphalt base construction, curb and
gutter, sidewalk /walkway/trail construction up to and including
base gravels and fencing around sensitive environmental
sensitive areas.
Excess or Extended
Services
means a portion of a Highway system that shall provide access to
land other than the land being subdivided or developed; and a
portion of a water, sewage or drainage system that shall serve
land other than the land being subdivided or developed.
Hardscape
means the treatment of boulevard between the back of curb to
property line with asphalt, concrete, stamped concrete and/or
pavers.
Highway
means a street, road, lane, bridge, viaduct, equestrian or other
trail, bicycle route and any other way open to public use.
Landscape
Architect
means the Landscape Architect referred to in Section 5.1
Municipal Engineer
means the General Manager, Engineering or their representative.
Municipality
means the Corporation of the Township of Langley.
Official Community
Plan
means the official community plan of the Municipality as adopted
by Bylaw.
Bylaw No. 5382
Page 5
Owner
means an Owner as defined in the Community Charter.
Owner's Engineer
means the Professional Engineer referred to in Section 5.1
Parcel
means any lot, block or other area in which land is held or into
which land is subdivided.
Works and Services means any work, service or utility which is required by this Bylaw
and includes without limitation works and facilities for the supply
and distribution of water, collection and disposal of sewage,
collection and disposal of storm water, street lighting, Highways,
curbs, gutters, sidewalks, and medians, boulevards, boulevard
crossings, boulevard landscaping, on-site landscaping, and the
underground supply and distribution of electricity, gas, and other
forms of energy, telephone, telecommunications, and cablevision.
Zone
means a zone in accordance with the Township of Langley
Zoning Bylaw 1987 No. 2500, as amended from time to time.
Residential Zone does not include Suburban Residential Zone or
Multiple Family Residential Zone.
3.0 ADMINISTRATION
3.1
Authority
Except for Schedule I (Tree Protection), this Bylaw shall be administered by the
Municipal Engineer who shall have overall authority over the provision, location,
design and construction of all Works and Services and the Municipal Engineer
may exercise all powers, duties and functions of the Council of the Municipality in
respect of the bylaw excluding Schedule I (Tree Protection). With respect to
Schedule I (Tree Protection), the Manager, Green Infrastructure Services shall
have overall authority over the matters described in Schedule I (Tree Protection)
and the Manager, Green Infrastructure Services may exercise all the powers,
duties and functions of the Council of the Municipality in respect of Schedule I
(Tree Protection).
3.2 Inspection
Employees of the Municipality are authorized to enter at all reasonable times upon
any property or premises for inspection purposes in connection with their duties
under this Bylaw and to verify that the provisions of this Bylaw are being observed.
3.3
Severability
The provisions of this Bylaw are severable. If any provision is for any reason held
to be invalid by the decision of any court of competent jurisdiction, such decision
shall not affect the validity of the remaining provisions of this Bylaw.
Bylaw No. 5382
Page 6
3.4
Prohibitions
No person shall undertake a Development or construct Works and Services for a
Development contrary to the provisions of this Bylaw.
3.5
Offences and Penalties
Any person who contravenes any of the provisions of this Bylaw may be subject to
fines specified in the Township's Bylaw for municipal tickets as authorized under
Part 8, Division 3 of the Community Charter, S.B.C. 2003, Chap.26.
Any person who violates a provision of this Bylaw commits an offence punishable
on summary conviction and shall be liable to a fine of not less than Two Thousand
($2,000) Dollars and not more than Ten Thousand ($10,000) Dollars for each day
on which an offence exists or is continuing, together with such costs as a court of
competent jurisdiction may order. For the purposes of enforcing any judgment of a
court or collecting any fine levied hereunder, the provisions of the Offence Act,
R.S.B.C. 1996 c. 338, as amended, shall apply.
Any person who contravenes any of the provisions of this Bylaw may have
proceedings brought against them in Supreme Court to enforce, or prevent or
restrain the contravention of any provision of this Bylaw.
Any development application contravening any of the provisions of this Bylaw may
be denied, deferred, given further review or required to be amended by Council.
3.6
Fees
Administration Fees are based on the accepted construction estimate including
landscaping, street trees, replacement trees, retained trees and environmental
works and shall be paid in accordance with the following table:
ADMINISTRATION FEE
BREAKDOWN
INCREMENTAL
CONSTRUCTION COST
ADMINISTRATION
FEES %
FIRST
100,000
5.50
NEXT
150,000
5.00
NEXT
250,000
4.50
NEXT
500,000
4.00
REMAINDER
1,000,000 and over
3.75
When the Municipal Inspector is required to attend the site to complete additional
inspections related to Substantial Completion or Final Inspection for Civil and/or
Landscape Works a re-inspection fee of $200 will be charged to the Owner and
will be required to be paid prior to scheduling the inspection.
3.7
Approving Officer - Minimum Frontage
Pursuant to Section 512 of the Local Government Act, Council's powers to exempt
a Parcel from the statutory or bylaw minimum frontage are delegated to the
Approving Officer.
Bylaw No. 5382
Page 7
4.0 RESPONSIBILITY FOR WORKS AND SERVICES
Except as set out in this Section, the Owner shall be responsible for undertaking all
design, inspection, testing, construction and installation of Works and Services required
under this Bylaw.
Unless otherwise specifically approved by the Municipal Engineer, the Municipality may
directly retain consultants for the design and construction supervision of new, or
modifications to existing, pump stations, pressure reducing valve stations, meter stations
and reservoirs and directly retain consultants for the design and construction supervision
of arterial roads, trunk water and sewer utilities and for municipal stormwater detention
and infiltration facilities.
The Municipal Engineer shall determine whether the Owner, or the Municipality, shall
undertake the design, construction and installation of Works and Services on existing
municipal Highways.
The Municipal Engineer shall determine whether connection of new Works and Services
to municipal systems and manipulation of valves or control of pumps on existing municipal
systems shall be undertaken by the Owner or by others, and the Owner or the Owner's
contractor shall not do such work unless the Municipal Engineer provides written
permission.
The Municipal Engineer shall determine if service connections between individual Parcels
and existing municipal mains shall require application and payment of connection fees in
accordance with the bylaws regulating waterworks and sewers in the Municipality.
The Municipal Engineer shall determine whether traffic signage, street name signs, and
pavement markings shall be undertaken by the Owner or by others.
The Owner is responsible for all costs of all work undertaken in connection with the
Development and shall pay, on demand, all costs and charges for any work undertaken by
the Municipality or otherwise connected with construction of Works and Services for the
Development and all applicable municipal fees and charges.
Bylaw No. 5382
Page 8
5.0 DUTIES OF OWNER, OWNER'S ENGINEER AND
LANDSCAPE ARCHITECT
5.1
Duties of Owner
The Owner shall retain, as the Owner's Engineer, a Professional Engineer
registered in the Province of British Columbia and experienced in municipal
engineering and land development, to undertake all investigation, design,
inspection, testing, and record keeping for the Works and Services, except for
landscaping, until a Certificate of Acceptance is issued by the Municipal Engineer.
The Owner shall retain, as the Owner's Landscape Architect, a Landscape
Architect, registered in the Province of British Columbia and experienced in
landscape architecture and land development, to undertake the design, inspection,
testing, and record keeping of landscaping requirements under this Bylaw until a
Certificate of Landscape Acceptance is issued by the Municipality, and plans for
landscaping and street trees shall be signed and sealed by the Landscape
Architect and submitted to the Municipality for acceptance.
If sub-consultants or others with specialist responsibility are employed on
components of the Works and Services, the Owner's Engineer or the Landscape
Architect, as appropriate, shall act as prime consultant to the Owner for
coordinating and reviewing overall investigation, design, layout and inspection and
test reports and communicating with the Municipality. Prior to commencing design
of the Works and Services, the Owner must sign and submit a Commitment by
Owner and Engineer and a Commitment by Owner and Landscape Architect which
set out the minimum duties that the Owner's Engineer and Landscape Architect
are to be hired to perform.
If the Owner's Engineer ceases to be retained for, or is unable to carry out, the
described duties, the Owner shall immediately make the lands being subdivided,
developed or affected by the work safe and all construction must cease until a new
Commitment by Owner and Engineer has been delivered to the Municipal
Engineer and he has authorized work to recommence.
If the Landscape Architect ceases to be retained for, or is unable to carry out, the
described duties, all landscape work must cease until a new Commitment by
Owner and Landscape Architect has been delivered to the Manager, Green
Infrastructure Services and he has authorized work to recommence.
The Owner shall continue maintenance of the site, including drainage and erosion
and sediment control, throughout any period during which either the Owner's
Engineer or the Landscape Architect ceases to be retained for, or is unable to
carry out, the described duties.
The Owner shall engage qualified contractor(s) to undertake the construction and
maintenance of the Works and Services and may be required to provide a
summary of the projects that the contractor(s) has/have completed that are similar
in scope, nature and value to the Works and Services.
The Owner shall ensure the Owner's Engineer, Landscape Architect and all sub-
consultants and specialist firms and all individuals assigned responsibility for
Bylaw No. 5382
Page 9
components of the Works and Services perform all work in accordance with this
Bylaw.
The Owner shall ensure its contractor(s) perform all Works and Services in
accordance with this Bylaw and the Accepted Drawings.
The Owner shall, upon request of the Municipal Engineer, provide the names and
addresses of the Owner's Engineer, the Landscape Architect and all sub-
consultants and others with specialist responsibility that are to be retained together
with their qualifications and summary of projects they have completed that are
similar in scope, nature and value to the Works and Services.
5.2
Duties of Owner's Engineer and Landscape Architect
The Owner's Engineer and the Landscape Architect shall sign the respective
Commitments by Owner and Engineer and Owner and Landscape Architect and
carry out the duties described therein and in accordance with this Bylaw.
The Owner's Engineer shall immediately notify the Municipal Engineer if they
ceases to be retained, or is unable to carry out, the described duties before a
Certificate of Acceptance has been issued.
The Landscape Architect shall immediately notify the Municipality if they ceases to
be retained, or is unable to carry out, the described duties before a Certificate of
Landscape Acceptance has been issued.
The Owner's Engineer and any sub-consultants shall carry professional liability
insurance of not less than $1,000,000 per claim during the term of their
engagement and shall provide proof of such insurance to the Municipal Engineer
before designs are submitted for approval.
Municipal review or acceptance of design drawings does not confirm the accuracy
of the design. The Municipality shall not accept responsibility for any costs or
damages incurred by the Owner due to errors, omissions, or deficiencies in the
design.
Monitoring and inspection of construction by the Municipality does not relieve the
Owner's Engineer or the Landscape Architect of the obligation to provide
inspection services and to certify Record Drawings.
Bylaw No. 5382
Page 10
6.0 WORKS AND SERVICES REQUIRED
6.1
Provision and Standards of Works and Services
Required Works and Services shall be provided and located in compliance with
this Bylaw and the Accepted Drawings. If a Development requires the installation
of underground utilities adjacent to currently unserviced Parcels, the Owner shall
advise owners of those Parcels by registered mail that connections may be made
at their expense at the time of development. The notification shall be coordinated
through the Municipality with all related costs borne by the Owner.
6.2
Highways
Highways required in connection with the subdivision of land shall be dedicated,
aligned and located and have dimensions and gradients in accordance with
highway plans adopted by Council or, where such plans do not prescribe
requirements, in accordance with this Bylaw.
Where, in the opinion of the Municipal Engineer, required Works and Services
cannot be accommodated within the minimum width of Highway required by this
Bylaw they may be constructed within:
a) an additional width of dedicated Highway to the satisfaction of the
Municipal Engineer; or
b) a statutory right-of-way area to the satisfaction of the Municipal Engineer
pursuant to a statutory right-of-way agreement in form and substance
acceptable to the Municipal Engineer
6.3
Works and Services within Subdivisions
An Owner shall provide Works and Services to every Parcel within a Subdivision.
Where underground wiring is required by the Municipal Engineer, separate ducts
shall be provided for such services including electrical, gas and other forms of
energy, telecommunications, telephone and cablevision services.
Except where, in the opinion of the Municipal Engineer, Works and Services may
never need to be extended to serve land beyond the Subdivision, they shall be
extended across the full width of each Parcel and to the boundaries of the
subdivision. The Municipal Engineer may waive this requirement where it would
require Works and Services to be extended across land designated on a
subdivision plan as the remainder of a Parcel being subdivided provided the
Owner grants a statutory right-of-way, to the acceptance of the Municipality's
solicitor, and provides preliminary designs for the future provision of Works and
Services all to the satisfaction of the Municipal Engineer. Section 6.3 does not
apply to a Subdivision under the Strata Property Act
Bylaw No. 5382
Page 11
6.4
Water, Sewer and Drainage
Water distribution, sewage and drainage collection, conveyance and disposal
systems installed in Subdivisions, including Subdivisions under the Strata Title Act,
must be connected to the systems operated by the Municipality and designed,
aligned, located, and constructed in accordance with plans adopted by Council or,
where such plans do not prescribe requirements, in accordance with this Bylaw.
Water and sanitary and storm sewer service connections shall be installed to each
Parcel. Installation of service connections for Developments other than in
Residential Zones may be deferred until the issue of a building permit subject to
the approval of the Municipal Engineer.
Where it is not practical to locate pump stations, reservoirs, pressure reducing
valve stations, detention ponds or other municipal facilities within a Highway, the
Owner shall provide and convey to the Municipality a Parcel of land in a location,
and of sufficient size, that is, in the opinion of the Municipal Engineer, adequate for
their construction, operation, and maintenance including any landscaping required.
Notwithstanding Section 6.3, each Parcel created in areas as specifically provided
for in Schedule A (Minimum Service Level Standards) of this Bylaw, shall have a
proven source of potable groundwater, the quantity, quality, inspection and
certification of which shall conform to the requirement of Schedule B (Design
Criteria) Section W20 - Private Wells. This requirement does not apply to a Parcel
that is greater than 5 ha on which no residence is to be constructed providing the
Owner registers a covenant in favour of the Municipality prohibiting construction of
a building until the requirements of Schedule B (Design Criteria) Section W20 -
Private Wells have been fulfilled to the satisfaction of the Chief Inspector.
Notwithstanding Section 6.3, where no municipal sanitary system exists, a
subdivision may be approved if an Authorized Person pursuant to the Sewerage
System Regulation of the Health Act certifies that separate sewerage systems in
accordance with that Regulation and suitable for the land use permitted under the
Zoning Bylaw, can be constructed for each Parcel in the proposed subdivision. A
sewerage system must be contained entirely within the Parcel it serves, except
with the approval of the Municipal Engineer.
6.5
Works and Services on Highways and on Building
Sites
Owners may be required, as a condition of Development, to provide Works and
Services on that portion of a Highway immediately adjacent to the site being
developed, up to the centreline of the Highway.
Owners may be required, as a condition of building permit issuance, to provide
Works and Services on the site being developed.
Council's powers, duties, and functions in respect to this Section are hereby
delegated to the Municipal Engineer.
Bylaw No. 5382
Page 12
6.6
Rights-of-Way and Easements
Water distribution and sewage and drainage collection systems shall be installed
within Highways unless that is not technically possible in which case they must be
located within statutory rights-of-way in accordance with Schedule B (Design
Criteria).
Every Parcel shall be accessed directly by a driveway from a public road to the
Parcel frontage in accordance with Schedule B (Design Criteria). Every Parcel
that is required to be provided with water and/or sewer services shall be connected
at the Parcel frontage or at its boundary with a statutory right-of-way. Where it is
not technically possible to access or serve a Parcel in this way and if it is
acceptable to the Municipal Engineer, the Owner shall grant, or acquire,
easements for such purposes in favour of the benefiting Parcel. The Owner shall
covenant with the Municipality, in a form acceptable to the Municipality's solicitor,
that the easement shall not be altered or discharged without the approval of the
Municipality.
Rights-of-way and easement documents shall be deposited and registered in the
Land Title Office before the Subdivision plan is signed or the building permit
issued. Alternatively, the Owner may provide a solicitor's undertaking, satisfactory
to the Municipality's solicitor, that the Subdivision plan and rights-of-way or
easement documents shall all be deposited in the sequence required by the
Municipality's solicitor and that, if that is not possible, the Subdivision plan shall be
immediately returned directly to the Approving Officer.
The Owner shall pay all costs incurred in the preparation and registration of rights-
of-way and easements and other legal documents associated with the
Development whether prepared by the Owner or by the Municipality on the
Owner's behalf.
If Works and Services required in accordance with this Bylaw shall cross an
established easement or other right-of-way, the Owner shall, at his own expense
before permission to proceed with construction is granted, obtain any amendments
necessary to permit the construction, reconstruction, inspection, operation, repair,
maintenance and use of the Works and Services under conditions acceptable to
the Municipal Engineer.
6.7
Waiver of Servicing Requirements
The servicing requirements of this Bylaw may be waived by the Municipal
Engineer:
a) for Parcels created solely for the installation and operation of unattended
equipment to be used for public works, utilities, communications, energy or
similar purposes and on which no workshop, office or similar use or a
dwelling shall be provided and where the Owner, unless it is the
Municipality, shall enter into a covenant satisfactory to the Approving
Officer prohibiting the Parcel being used for any other purpose without the
approval of the Municipality;
b) for applications consisting of lot line adjustments or consolidation and re-
subdivision without an increase in either the total number of Parcels or the
Bylaw No. 5382
Page 13
number of Parcels that may be built on in accordance with the Zoning
Bylaw.
7.0 COMMENCEMENT OF WORK
Except as necessary to construct ESC Facilities in accordance with Erosion and Sediment
Control Bylaw 2006 No. 4381, as amended, and tree protection fencing in accordance
with this Bylaw, no land clearing, stripping of top soil, excavation, placement of fill,
construction or installation of any kind may be undertaken on a Subdivision site until
Permission to Construct has been issued by the Municipal Engineer in accordance with
the requirements of Schedule C (Construction Requirements and Specifications).
If Works and Services are installed without Municipal Approval, they shall not be
connected to the Municipality's systems and the Municipality shall not accept them until:
a) the Works and Services have been certified by the Owner's Engineer as designed
and constructed in substantial compliance with this Bylaw;
b) certified Record Drawings and Service Location Cards have been received and
accepted;
c) the Municipality has inspected the Works and Services and notified the Owner in
writing that no apparent construction deficiencies have been discovered;
d) the Owner has made application for tie-ins to Municipal systems; and
e) the Owner has entered into an agreement with the Municipality, in which he
covenants and agrees to:
i)
maintain all of the said Works and Services in complete repair for a period
of five years;
ii)
remedy any defects which develop during the maintenance period and pay
to the Municipality any costs resulting from damage to other works or
property resulting from such defects;
iii)
pay a maintenance deposit of 20% of the Municipal Engineer's estimated
construction cost which security shall remain on deposit with the
Municipality for five years;
iv)
pay to the Municipality all fees related to a Development and legal costs
incurred by the Municipality in accepting such Works and Services; and
v)
provide all legal documentation to the acceptance of the Municipal
Engineer.
Bylaw No. 5382
Page 14
8.0 COMPLETION OF THE WORKS AND SERVICES
8.1
Servicing Agreements and Security
All Works and Services required to be constructed and installed at the expense of
the Owner shall be constructed and installed to the standards established in this
Bylaw before the Approving Officer approves the subdivision plan or the Chief
Inspector issues the building permit unless the Owner:
a) enters into a Servicing Agreement with the Municipality to construct and
install the required Works and Services by a specified date or forfeit to the
Municipality the amount secured; and
b) deposits with the Municipality a security deposit of cash, or a clean
irrevocable letter of credit from a financial institution, acceptable to the
Municipality for installing and paying for all Works and Services required
under this Bylaw.
The amount of deposit required under Section 8.1(a) shall be 150% of the cost
unless design drawings for all required Works and Services have been accepted
for construction by the Municipal Engineer in which case the deposit shall be 100%
of the cost. The cost for purposes of this Section shall be the construction cost
including engineering, inspection, testing, and installation of the Works and
Services and all taxes as estimated by the Owner's Engineer and accepted by the
Municipal Engineer.
8.2
Cash in Lieu of Construction
If the construction of part or all of the Works and Services required under this
Bylaw is considered by the Municipal Engineer to be premature, the requirement
may be fulfilled by a non refundable cash payment equal to 120% of the amount
estimated by the Owner's Engineer, and accepted by the Municipal Engineer, to
cover the cost of the required Works and Services. This payment shall be used by
the Municipality when construction of the Works and Services becomes feasible.
In addition, the Owner shall pay an administration fee related to the Development
based on the estimated cost in accordance with Section 3.6 of this Bylaw.
Payment is required to be paid before the Approving Officer approves the
subdivision plan or the Chief Inspector issues the building permit.
Bylaw No. 5382
Page 15
9.0 MINIMUM SERVICE LEVEL STANDARDS
Different minimum levels of service shall be provided in different areas of the Municipality
in accordance with Schedule A (Minimum Service Level Standards).
Where, in the opinion of the Municipal Engineer, the application of Schedule A (Minimum
Service Level Standards) is inappropriate within the context of existing municipal services
in the area, they may modify the level of service.
10.0 UPSIZING AND EXTENDING WORKS AND SERVICES
The Municipal Engineer may require the Owner to provide Excess or Extended Services
to provide access to, or service, land other than the Development. If the Municipal
Engineer considers that the cost to the Municipality to provide all or any part of the Excess
or Extended Services to be excessive then the Owner must pay those costs and the
Municipality shall enter into an agreement with the Owner under Section 507 of the Local
Government Act.
11.0 BYLAW SCHEDULES
The following Schedules are attached to and form part of this Bylaw:
Schedule A: Minimum Service Level Standards
Schedule B:
Design Criteria
Schedule C:
Construction Requirements and Specifications
Schedule D:
Approved Materials and Products
Schedule E:
Accepted Street Trees and Plants Not Accepted for Use
Schedule F:
Servicing Agreement
Schedule G: Standard Forms
Schedule H:
Supplementary Detail Drawings
Schedule I:
Tree Protection
12.0 REPEAL
Township of Langley Subdivision and Development Servicing Bylaw 2011 No. 4861 and
all amendments is hereby repealed.
READ A FIRST TIME the
08
day of
July
, 2019
READ A SECOND TIME the
08
day of
July
, 2019
READ A THIRD TIME the
08
day of
July
, 2019
RECONSIDERED AND ADOPTED the
22
day of
July
, 2019
'JACK FROESE"
Mayor
'WENDY BAUER'
Township Clerk
TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING BYLAW
SCHEDULE A
MINIMUM SERVICE LEVEL STANDARDS
MINIMUM SERVICE LEVEL STANDARDS
Schedule "A" of the Subdivision and Development Servicing Bylaw
Service
Standard
Service Level Area
1
Urban
2
Special
Urban
3
Suburban
4
Rural
Highways
Facilities
Urban Road Standards
-
-
Rural Road Standards
-
-
-
Water Systems
Private Well
-
Municipal Water
System
-
-
-
Sanitary Sewerage
On-site Private
Systems
- (3)
- (3)
- (3)
Municipal Sewer
System
-
- (2)
Drainage Systems
Infiltration Systems
- (1)
- (1)
-
Open Channel System
-
-
Storm Sewer System
-
-
-
Hydro &
Telecommunication
(fiber optic)*
Overhead Systems
(4)
-
-
-
Underground Systems
-
- (2)
Street Lighting
Pole-Mounted
-
-
-
Ornamental
-
- (2)
Landscaping &
Trees
Street Trees
-
-
Boulevard
Landscaping
-
-
* Fiber Optic duct to be installed at the discretion of the Municipal Engineer.
(1)
Infiltration systems shall be in accordance with an applicable master drainage plan,
neighbourhood servicing plan or stormwater management plan. If there is no plan,
infiltration facilities to be in accordance with Schedule B Section D10 "On-site
Infiltration and Detention".
(2)
Special Urban Area located in the southwest area, south of 4 Avenue and west of 204
Street, to be serviced with Municipal Sewer System, underground hydro, telephone
and cablevision, ornamental street lighting and street trees. Special Urban Area
located south of 88 Avenue and east of 216 Street shall be serviced with a Municipal
Sewer System
(3)
On-site private sewerage system may be required to upgrade conventional septic
systems to include nitrate removal in accordance with Schedule B - On-site System
Requirements Figure S1, Schedule B or connect to a Municipal sewer system.
(4)
Overhead distribution permitted only in Heavy Industrial Area of Northwest Langley
(see Supplementary Drawing TLG 05 for details)
Note: Municipal Water System is defined as a water system owned, operated and maintained by
the Municipality.
208 St
216 St
224 St
232 St
240 St
248 St
256 St
264 St
272 St
200 St
0 Ave
104 Ave
16 Ave
24 Ave
32 Ave
40 Ave
48 Ave
56 Ave
64 Ave
72 Ave
8 Ave
80 Ave
88 Ave
96 Ave
±
F:\data\landdev\DevEng Maps\SDSB_ServiceLevels\ServiceLevels-ScheduleA.aprx
Level 1 - Urban
Level 2 - Special Urban
Level 3 - Suburban
Level 4 - Rural
Service Levels
Schedule A
Apr 2024
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TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE B
DESIGN CRITERIA
SCHEDULE B
DESIGN CRITERIA
TABLE OF CONTENTS
Section DR - Design and Record Document Submission .......................................... 2
DR1 General ............................................................................................................. 2
DR2 Survey Information ............................................................................................ 2
DR3 Preliminary Review ............................................................................................ 3
DR4 Design Submissions .......................................................................................... 3
DR5 Standards and Content ...................................................................................... 4
DR5.1
Cover Sheet....................................................................................... 5
DR5.2
Key Plan ............................................................................................ 5
DR5.3
Stormwater Control Plan .................................................................... 5
DR5.4
Road and Water ................................................................................ 6
DR5.5
Storm and Sanitary Sewers ............................................................... 6
DR5.6
Stormwater Management/Lot Grading Plan ....................................... 6
DR5.7
Road Cross Sections ......................................................................... 7
DR5.8
Street Lighting, Road Marking and Signage Plan ............................... 7
DR5.9
Landscape Lighting ............................................................................ 8
DR5.10
Traffic Signals .................................................................................... 8
DR5.11
Landscaping Plan .............................................................................. 8
DR5.12
Construction Details ........................................................................... 9
DR5.13
Standard Note Sheet ......................................................................... 9
DR6 Submission Sets ................................................................................................ 9
DR6.1
First Submission ................................................................................ 9
DR6.2
Submission Revisions ........................................................................ 9
DR6.3
Final Submission ............................................................................. 10
DR7 Civil and Landscaping Cost Estimate ............................................................... 10
DR8 Service Record Cards...................................................................................... 10
DR9 Record Documents .......................................................................................... 11
Section D - Drainage ................................................................................................... 14
D1
Introduction ...................................................................................................... 14
D2
Stormwater Control Plans ................................................................................ 14
D3
Design Frequencies And Storage Release Rates ............................................ 15
D4
Runoff Analysis................................................................................................ 15
D5
Rational Method .............................................................................................. 15
D5.1
Presentation of Rational Calculations .............................................. 17
D5.2
Runoff Coefficients .......................................................................... 18
D5.3
Soil Adjustment Factor ..................................................................... 18
D5.4
Time of Concentration ..................................................................... 18
D5.5
Rainfall Intensity .............................................................................. 19
D5.6
Climate Change Rainfall Data .......................................................... 19
D5.7
Current Rainfall Data ....................................................................... 20
D6
Runoff Hydrograph Method ............................................................................. 26
D6.1
Selection of Modelling Program ....................................................... 26
D6.2
Design Storms ................................................................................. 26
D6.3
Presentation of Modelling Results .................................................... 45
D7
Stormwater Conveyance ................................................................................. 45
D7.1
Minor and Major Systems ................................................................ 45
D7.2
Pipelines .......................................................................................... 46
D7.3
Manholes and Cleanouts ................................................................. 48
D7.4
Catchbasins ..................................................................................... 48
D7.5
Service Connections ........................................................................ 50
D7.6
Roof Drainage ................................................................................. 50
D7.7
Site Drainage ................................................................................... 50
D7.8
Lawn Basins .................................................................................... 51
D7.9
French Drains .................................................................................. 51
D7.10
Rockpits and Drywells ..................................................................... 52
D7.11
Ditches ............................................................................................ 52
D7.12
Roadway Major Drainage ................................................................ 52
D7.13
Major System Ditches ...................................................................... 53
D7.14
Culverts ........................................................................................... 54
D7.15
Inlet and Outlet Structures ............................................................... 54
D8
Municipal Stormwater Infiltration Facilities ....................................................... 55
D9
Municipal Detention Ponds .............................................................................. 55
D9.1
Basin Design ................................................................................... 55
D9.2
Inlets and Outlets ............................................................................. 56
D9.3
Overflow .......................................................................................... 57
D9.4
Access ............................................................................................. 57
D9.5
Landscaping, Fencing and Signage ................................................. 57
D9.6
Operation and Maintenance Manual ................................................ 57
D10 On-Site Infiltration And Detention .................................................................... 58
D10.1
Subdivision ...................................................................................... 58
D10.2
Building Permits ............................................................................... 58
D10.3
Design of On-site Infiltration Measures ............................................ 58
D10.4
Design of On-site Storage Facilities ................................................. 59
D10.5
Responsibility for Operation and Maintenance ................................. 59
D11 Stormwater Quality Control .............................................................................. 59
D12 Minimum Building Elevation ............................................................................. 60
Section R - Roads........................................................................................................ 62
R1
General ........................................................................................................... 62
R2
Classifications ................................................................................................. 62
R3
Grades ............................................................................................................ 62
R4
Highway Cross Sections .................................................................................. 64
R5
Horizontal And Vertical Curves ........................................................................ 64
R6
Curb Returns And Corner Cuts ........................................................................ 65
R7
Cul-De-Sacs, P-Loops And Bareland Strata Roads ......................................... 66
R8
Temporary Turnarounds .................................................................................. 67
R9
Emergency Accesses ...................................................................................... 67
R10 Intersections .................................................................................................... 68
R11 Intersection Islands .......................................................................................... 68
R12 Half Roads ....................................................................................................... 68
R13 Existing Roads................................................................................................. 69
R14 Lanes .............................................................................................................. 69
R15 Road Base and Pavement Design ................................................................... 69
R16 Paving Procedure ............................................................................................ 70
R17 Driveways ........................................................................................................ 71
R17.1
Access to Urban Arterial and Collector Roads ................................. 71
R17.2
Number of Driveways ...................................................................... 71
R17.3
Driveway Location and Width .......................................................... 71
R17.4
Driveway Grades ............................................................................. 73
R17.5
Driveway Construction ..................................................................... 73
R17.6
Driveways for Panhandle Lots ........................................................ 73
R18 Signage and Pavement Marking ...................................................................... 74
R19 Traffic Impact Studies ...................................................................................... 74
R20 Curbs, Medians, Sidewalks And Walkways ..................................................... 74
R20.1
Curbs and Gutters ........................................................................... 74
R20.2
Medians ........................................................................................... 75
R20.3
Wheelchair Ramps .......................................................................... 75
R20.4
Sidewalks ........................................................................................ 75
R20.5
Urban Walkways .............................................................................. 76
R20.6
Handrails ......................................................................................... 76
R21 Community Mailboxes ..................................................................................... 76
R22 Bus Stops ........................................................................................................ 76
R23 Vertical Clearances ......................................................................................... 77
R24 Non-Municipal Utilities ..................................................................................... 77
Section S - Sanitary Sewers ....................................................................................... 80
S1
General ........................................................................................................... 80
S2
Design Flows ................................................................................................... 80
S2.1
Average Daily Dry Weather Flow ..................................................... 80
S2.2
Peak Dry Weather Flow ................................................................... 80
S2.3
Infiltration Rate ................................................................................ 80
S3
Pipe Flow Formula ........................................................................................... 81
S4
Minimum Sewer Diameter ............................................................................... 81
S5
Velocities ......................................................................................................... 81
S6
Grade .............................................................................................................. 81
S7
Manholes ......................................................................................................... 82
S8
Manhole Design Details ................................................................................... 82
S9
Cleanouts ........................................................................................................ 82
S10 Depth ............................................................................................................... 83
S11 Sewer Location ................................................................................................ 83
S12 Service Connections ........................................................................................ 84
S13 Seismic Protection ........................................................................................... 85
S13.1
Application ....................................................................................... 85
S13.2
General Requirements ..................................................................... 85
S13.3
Areas B and C Requirements .......................................................... 85
S13.4
Forcemains ...................................................................................... 86
S14 Sanitary Lift Stations ........................................................................................ 86
S14.1
Corrosion Protection ........................................................................ 86
S15 Private On-Site Sewerage Systems ................................................................. 86
Section W - Waterworks.............................................................................................. 90
W1
General ........................................................................................................... 90
W2
Design Flows ................................................................................................... 90
W3
Fire Flow Demands ......................................................................................... 91
W4
Water Pressures .............................................................................................. 91
W5
Watermain Size And Layout ............................................................................ 91
W6
Depth Of Cover................................................................................................ 92
W7
Watermain Grades .......................................................................................... 92
W8
Clearance From Sewer Pipes .......................................................................... 92
W9
Valves ............................................................................................................. 93
W10 Hydrants .......................................................................................................... 93
W11 Air Valves ........................................................................................................ 94
W12 Blow Downs ..................................................................................................... 94
W13 Blow-Offs ......................................................................................................... 94
W14 Thrust Blocks And Joint Restraints .................................................................. 94
W15 Valve Chamber Drainage ................................................................................ 95
W16 Service Connections ........................................................................................ 95
W17 Watermain Location ......................................................................................... 95
W18 Geotechnical Investigation ............................................................................... 97
W19 Seismic Protection ........................................................................................... 97
W19.1
Application ....................................................................................... 97
W19.2
Pipe Materials and Joints ................................................................. 98
W19.3
Connections to Structures ................................................................ 98
W19.4
Service Connections ........................................................................ 98
W20 Private Wells ................................................................................................. 100
W20.1
Regulatory Requirements .............................................................. 100
W20.2
Well Construction........................................................................... 100
W20.3
Minimum Yield and Quality ............................................................ 100
W20.4
Well Development, Testing and Certification .................................. 101
W20.5
Hydrogeological Evaluation ........................................................... 101
Section SL - Lighting And Traffic Signals ............................................................... 105
SL1 General ......................................................................................................... 105
SL2 Lighting Levels .............................................................................................. 105
SL3 Light Pole Spacing ......................................................................................... 105
SL4 Circuit Size .................................................................................................... 106
SL5 Luminaires, Poles, Wattages And Light Source ............................................. 106
SL6 Decorative Street Lighting ............................................................................. 107
SL7 Lighting Calculations ..................................................................................... 107
SL9 Conduit .......................................................................................................... 108
SL10 Junction Boxes .............................................................................................. 108
SL11 Conductors .................................................................................................... 109
SL12 Service Equipment ........................................................................................ 109
SL13 Concrete Bases ............................................................................................. 109
Section L - Landscape Works................................................................................... 111
L1
General ......................................................................................................... 111
L2
Noxious/Invasive Plant Species ..................................................................... 112
L3
Boulevard And Median Landscaping ............................................................. 113
L3.1
Conventional Boulevards ............................................................... 113
L3.2
Greenway Boulevards ................................................................... 113
L3.3
Retaining Walls .............................................................................. 114
L3.4
Planted Medians ............................................................................ 114
L3.5
Tree and Plant Selection and Spacing ........................................... 114
L3.6
Tree Planting ................................................................................. 114
L3.7
Tree Clearances ............................................................................ 115
L3.8
Time of Plant and Grass Installation .............................................. 115
L3.9
Irrigation ........................................................................................ 116
L3.10
Drainage ........................................................................................ 116
L3.11
Fencing and Associated Landscaping............................................ 116
L4
Trails ............................................................................................................. 117
L4.1
Trail Cross-Section and Surface .................................................... 117
L4.2
Retaining Walls .............................................................................. 118
L4.3
Fencing .......................................................................................... 118
L4.4
Restrictive Barriers ........................................................................ 118
L4.5
Trail Signage ................................................................................. 119
L4.6
Site Furniture ................................................................................. 119
Schedule B | Design Criteria
Page 1
DESIGN CRITERIA
SECTION DR - Design and Record Document
Submission
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 2
SECTION DR - DESIGN AND RECORD DOCUMENT
SUBMISSION
DR1 GENERAL
Design and record documents for Works and Services provided in connection with a
Development shall be submitted in accordance with these requirements after favourable
review of the proposal by the Community Development Division and all required
application fees have been paid.
Incomplete or substandard submissions shall be returned to the Owner's Engineer or
Landscape Architect without detailed review but with a short letter of explanation.
Municipal review of calculations and drawings is procedural only and does not confirm
the accuracy or appropriateness of the design. The Owner's Engineer shall be fully
responsible for the accuracy and suitability of the design and for its conformity to the
Bylaw. Any design errors, omissions or deficiencies, whensoever discovered, shall be
rectified to the satisfaction of the Municipal Engineer at the cost of the Owner, and the
Municipality shall not be held liable for any such costs.
DR2 SURVEY INFORMATION
All coordinates and elevations shall reflect the latest coordinate refresh published by the
Province of BC using the NAD83 (CSRS) 4.0.0.BC.1.GVRD horizontal datum and
CVD28GVRD2018 vertical datum.
Plans are to show the following references: "Coordinates are UTM NAD83(CSRS) -
4.0.0.BC.1.GVRD converted to ground-level using a combined scale factor of
0.########" and "Elevations are in metres and refer to CVD28GVRD2018 - Geodetic
datum. Elevations are tied to GCM No. ###### (elev. ###.###)."
Permanent benchmarks and/or survey monuments used for elevation derivation must be
noted on all plans. Temporary benchmarks are not acceptable.
Copies of legible field notes shall be made available to the Municipal Engineer upon
request.
All existing items such as monuments, manholes, catchbasins, fire hydrants, poles,
existing dwellings, BC Transit bus stops, fences, trees, hedges and unusual ground shall
be noted.
Cross sections, as required, shall include centreline, edge of pavement or gutter line,
edge of shoulder, ditch invert, top of ditch, property line, and existing ground elevation a
minimum of 5.0m inside property line.
Generally, chainage shall increase from left to right and from bottom to top on a drawing.
Schedule B | Design Criteria
Page 3
DR3 PRELIMINARY REVIEW
Prior to the preparation of detailed construction drawings, the Owner's Engineer shall
submit a conceptual Stormwater Control Plan, if required, in accordance with Schedule
B, Section D2. The plan shall include a report by the Owner's Engineer describing in
detail how the proposed Subdivision shall impact the fronting and downstream drainage
system and how the proposed major and minor drainage systems meet the requirements
of this Schedule. If a master drainage plan or neighbourhood servicing plan is not
available, the report shall include an Engineer's analysis of the impact of the proposed
Subdivision on existing flood-prone areas in the watershed.
The Owner's Engineer or Landscape Architect may be required to attend a pre-design
meeting for a review of the preliminary design and to ensure compliance with current
municipal standards, specifications and policies.
These requirements may be waived for subdivisions only requiring service connections
for individual Parcels to existing municipal systems having adequate capacity, and may,
at the discretion of the Municipal Engineer, be reduced in scope in other circumstances.
DR4 DESIGN SUBMISSIONS
First submission consists of design drawings, the Commitment by Owner and Engineer
(Form F9) and the Commitment by Owner and Landscape Architect (Form F10) shall be
submitted.
All design calculations and drawings, except for street lighting and landscaping plans,
shall be signed and sealed by the Owner's Engineer. Street lighting calculations and
plans shall be signed and sealed by a professional engineer experienced in street light
calculations. All landscaping plans shall be signed and sealed by the Owner's
Landscape Architect.
A Professional Engineer's or Landscape Architect's seal and signature on the design
drawings shall certify that all works or landscaping shown on the drawings are
appropriate for their intended use, comply with the requirements of the Subdivision and
Development Servicing Bylaw, and are in accordance with good engineering or
landscape architectural practice. Any exceptions shall be noted and explanatory
documentation provided.
The Owner's Engineer shall obtain approvals from all other agencies as necessary and
submit them to the Municipal Engineer before the design drawings can be accepted for
approval. If an agency requires an application to be made by the Municipality, the
Owner's Engineer shall supply the Municipality with the necessary drawings and any
other supporting information for the application.
The Owner's Engineer shall:
-
arrange for the coordination of the design, location and/or relocation of non-
municipal utilities with the appropriate utility companies
-
ensure non-municipal utility works are compatible with Municipal Requirements
-
submit all drawings to the Municipal Engineer for review
Schedule B | Design Criteria
Page 4
The Municipal Engineer's acceptance of design submissions is only valid until the expiry
date of the decision letter issued by the Approving Officer in connection with an
application for a Subdivision or the expiry date of a Building Permit unless a Servicing
Agreement has already been executed or Permission to Construct has already been
issued. Re-submission shall be required for expired plans.
All requests for variations to the Accepted Drawings shall be made in writing by the
Owner's Engineer or Landscape Architect and may be required to include a signed and
sealed revision to the previously Accepted Drawings. All variations shall require the
written approval of the Municipality.
DR5 STANDARDS AND CONTENT
All design drawings shall include the Municipality's standard title block, the Owner and
Owner's Engineer, or Landscape Architect, company names, addresses, telephone
numbers and e-mail address, the legal description of the lands being developed and, in
the lower right hand corner, the Municipal Project Number.
Drawings shall be computer generated and shall clearly identify the works in sufficient
detail.
All new works are to be drafted in bold lines. Font type and size and line thicknesses
shall conform to the requirements of the Township of Langley's Geomatics Service
Department. For further information, contact the Geomatics Service Department at
[email protected] .
Notes pertaining to construction and landscaping are to be shown on the relevant
drawing.
A baseline referenced to legal lot lines shall be shown on each sheet. Chainages are to
be shown on profile in even 20 m intervals. Offsets are to be shown to both sides of the
road allowance or to one side with the road allowance width annotated.
All existing structures, including houses, sheds, fences, wells, septic tanks and fields,
shall be shown on the appropriate drawings, with a notation indicating whether they are
to be retained, removed, filled or otherwise modified.
Plans shall include a north arrow and show existing property lines, legal descriptions
(lots and plan numbers) and dimensions (to the nearest 0.01 m), and show existing
house numbers and all registered statutory rights-of-way, easements and covenant
areas.
Alternatives to the scales required in the following sections may be accepted where the
Municipality considers them to be appropriate.
Schedule B | Design Criteria
Page 5
A complete set of engineering design submissions shall include, in the following
sequence:
DR5.1
Cover Sheet
In addition to DR5, the cover sheet shall include a site plan at 1:5000 scale
showing the proposed subdivision layout and road names and a complete list of
drawings. Erosion & Sediment Control Plans are a separate drawing submission.
DR5.2
Key Plan
The key plan shall be at a 1:500 scale and shall note all existing and proposed
services, including street lighting, retained trees and all non-standard connection
offsets. If more than one sheet is required, the westerly or southerly portion shall
be noted first and identified as Key Plan "A" with additional plans noting "B" and
"C", etc. The Development site is to be outlined with a bold line.
If a profile drawing is not required for a utility, then the service connection depths
and inverts are to be noted on the Key Plan.
Each of the following that requires more than one sheet shall identify each sheet
in accordance with the key plan system.
DR5.3
Stormwater Control Plan
The Stormwater Control Plan shall consist of a stormwater model report and
calculations if the runoff hydrograph method is used, and drawings at a scale of
1:2500 or 1:5000 showing, but not be limited to:
-
major and minor system catchment boundaries, number and area (ha)
-
existing contours at 1 m intervals
-
existing storm sewers and manholes
-
proposed storm sewers and manholes
-
future storm sewers
-
detention pond(s) and, for each design event specified in this document,
the pre and post-developments flows at the detention pond outlet, and the
required pond volumes. If the proposed Subdivision flows into an existing
detention pond, that shall be indicated in the report and on the plan
-
accumulated major flows for each section with provision for upstream
Development potential where applicable
-
arrows identifying the positions of the major flow hydraulic grade lines
within the Development as follows:
o
above ground (solid flow arrow)
o
surcharged (hatched flow arrow)
o
below ground (hollow flow arrow)
o surface runoff arrows
Schedule B | Design Criteria
Page 6
DR5.4
Road and Water
Plan and profile drawings shall be at 1:500 horizontal and 1:50 vertical scales.
Plans shall show centreline of existing road and location of proposed or retained
curbs and catchbasins, centreline and curb return radii, elevations at beginning,
end and quarter points of curb returns, wheelchair letdowns, bus stops, trees,
fences, retaining walls, etc. and the locations, offsets, curvatures, size and
identification of watermains together with all bends, valves, hydrants and other
appurtenances. Watermain fittings for each location are to be listed in a box on
the plan and tied to chainage.
Profiles shall show existing and proposed road centreline profiles and profiles at
property lines, full watermain diameter together with fittings and crossover points
with sewers tied to chainage and note crossover clearances and all pipe and
fittings materials.
Typical road cross sections are to be shown on each sheet.
In rural subdivisions with an open ditch drainage system, the size of future
driveway culverts shall be sized to accommodate the 100 year flow.
DR5.5
Storm and Sanitary Sewers
Plan and profile drawings, at 1:500 horizontal and 1:50 vertical scales, shall show
all pipelines, manholes, catchbasins and other appurtenances.
Plans shall show the locations, offsets, curvatures, size and identification of
storm and sanitary sewers and note connection inverts and depth at property line
and minimum building elevation (MBE) for each lot.
Profiles shall show ground profiles at centreline and at property lines, full pipe
diameters, minor and major system hydraulic grade lines and symbols denoting
service connection elevations at property line and shall note pipe diameters and
materials, grades, inverts and all rim elevations. Crossover points with
watermains tied to chainage and note crossover clearance.
DR5.6
Stormwater Management/Lot Grading Plan
The lot grading plan shall be scaled 1:500 and shall show, but not be limited to,
the following:
-
catchment boundaries with number and area (ha)
-
existing storm sewers and manholes
-
proposed storm sewers and manholes (bold)
-
detention pond(s)
-
pre-development contours at maximum 1 m intervals extending a
minimum of 20 m beyond the Development site
-
accumulated major and minor flows and pipe capacity for each section
between manholes with provision for upstream Development potential
where applicable
Schedule B | Design Criteria
Page 7
-
arrows identifying the positions of the major flow hydraulic grade lines
within the Development as follows:
o
above ground (solid flow arrow)
o
surcharged (hatched flow arrow)
o
below ground (hollow flow arrow)
-
overland flow drainage arrows illustrating existing flows to and from site
-
tabular calculations on Table D1
-
existing elevations at all property line(s) (uncircled)
-
proposed elevations at all property line(s) (circled)
-
fill over 0.45 m (shaded)
-
fill over 1 m (hatched)
-
surface flow direction on each lot, noting minimum 2% grade
-
overland flow arrow from neighbouring lots
-
lawn basin, leads and rim elevations
-
swales to be provided at time of subdivision development
-
swales to be provided at time of building construction
-
catchbasin and rim elevations
-
on-site infiltration system
-
storm sewer invert elevation at property line for all lots
-
minimum building elevation (MBE) for each lot and include MBE definition
-
retained trees.
DR5.7
Road Cross Sections
Road cross sections shall be at 1:100 horizontal and 1:50 vertical scales and
show the elevations of existing ground and proposed road centreline, curb and
gutter (or road edge) and property lines and show entire back slopes to meet
final lot grading. Cross-sections are required at a maximum of 20 m intervals.
Additional sections may be required where excessive cuts or fills are involved.
DR5.8
Street Lighting, Road Marking and Signage Plan
Separate street lighting and road marking and signage plans shall be at a scale
of 1:500 and include:
-
luminaire wattage, distribution type and voltage
-
the calculated maintained average luminance level, average to minimum
uniformity ratio and veiling luminance
-
a table listing sign type and quantity in accordance with TAC MUTCD and
length of each type of marking
-
complete list of materials to be supplied by the Municipality.
If decorative lighting is to be used in accordance with SL6, plans shall be
accompanied by:
-
signed and sealed photometric calculations together with the make and
model of luminaire proposed
-
shop drawings (in digital format) of light poles with pole design criteria
sealed by a Professional Engineer. Pole shall be designed to AASHTO
2000 with a wind pressure of 560 Pascals
Schedule B | Design Criteria
Page 8
-
detailed product sheets, information and specifications of the luminaires
and lamps proposed. All luminaire ballasts shall be CWA or CWI
-
detailed product sheets and information on pole accessories (banner
arms, receptacles, decorative castings etc.)
DR5.9
Landscape Lighting
Electrical outlets suitable for decorative tree lighting may be required at each tree
planted in boulevards and medians in commercial areas. Such outlets shall be
connected to the street lighting system. Street lighting poles should be designed
to accommodate banner and hanging basket arms, as well as pedestrian scale
luminaires as necessary along street side greenways.
DR5.10 Traffic Signals
Traffic signal plans shall consist of two sheets.
Sheet 1 shall be at a scale of 1:250 and show:
-
lane markings
-
signal phasing diagram
-
wiring/cable color code
-
Hydro service location
-
controller location
-
service panel location
-
proposed and future works
-
wiring details for each pole and conduit run
-
legend
-
general notes
Sheet 2 shall include:
-
pole and base details
-
signal and pedestrian head details
-
materials required per pole and product list
-
street light shown on traffic poles
DR5.11 Landscaping Plan
Street tree and greenway plans shall be at a scale of 1:500 and boulevard
planting and trail and fence layout plans shall be at a scale of 1:250. The plans
shall show:
-
individual trees and shrubs with the correct botanical name, and proposed
spacing
-
ground cover, which may be shown en masse, with botanical names and
spacing's
-
a complete plant list indicating the plant quantities, botanical names,
common names, size, spacing and include proposed area totals for the
planted area and lawn sections
-
existing and proposed ground elevations at property lines
-
lawn basin and catchbasin rim elevations
Schedule B | Design Criteria
Page 9
-
walkway pavement elevations and layout
-
swales with flow direction noted
-
vehicle restriction, greenway related signage, street furniture, retaining
walls, special paving treatment
-
special features within greenway
-
retained trees
-
standard notes
DR5.12 Construction Details
Construction details shall be in accordance with the Municipality or MMCD
Standard Detail Drawings and the appropriate drawing number shall be
referenced on the design drawings. If there is no appropriate standard drawing
for a specific detail, a detail drawing shall be provided by the Owner's Engineer.
DR5.13 Standard Note Sheet
A copy of the Municipality's Standard Note Sheet is to be included, without any
changes, as the last page of all submissions.
DR6 SUBMISSION SETS
DR6.1
First Submission
The first complete design submission shall consist of:
-
four complete sets of civil and landscape drawings
-
five additional key plans
-
one additional lot grading plan
-
one additional street lighting plan (complete with road marking and
signage, if applicable) with accompanying photometrics
-
two additional sets of traffic signal drawings if applicable
-
three additional sets of landscaping plans, if required
-
two additional sets of water system drawings including a key plan with
each set (for Ministry of Health approval)
-
one additional set of sanitary drawings including a key plan (for GVS&DD
approval) together with a completed application to extend sewerage
systems, to the appropriate governing agency
-
soils report to verify road structure design and adequacy of existing
pavement (soils reports are required on all new road construction design)
-
all applicable utility calculations signed and sealed by Owner's Engineer
(water, sanitary, storm sewer)
-
latecomer submission if applicable and prepared by this stage
DR6.2
Submission Revisions
All items highlighted by the Municipality shall be addressed by the Owner's
Engineer or Landscape Architect and failure to do so may result in rejection of
the revised submission. Revised design submissions shall:
-
include two complete sets of drawings (civil/landscaping)
Schedule B | Design Criteria
Page 10
-
include previous drawing submission with comments from the Municipality
-
include a complete construction estimate, signed and sealed by the
Owner's Engineer or Landscape Architect
-
have highlighted in yellow any changes made by the Owner's Engineer or
Landscape Architect which are in addition to changes required by the
Municipality
-
include a revision to the latecomer's submission, if applicable
DR6.3
Final Submission
The final submission for the Municipality acceptance shall consist of:
-
five complete sets of civil and landscape drawings, signed and sealed by
the Owner's Engineer or Landscape Architect
-
one .pdf version of complete sets of civil and landscape drawings
-
three complete sets of civil/landscape drawings reduced to 11" by 17"
-
six additional key plans
-
one additional set of lot grading plans
-
one additional set of street lighting plans (complete with road markings
and signage, if applicable)
-
one additional set of traffic signal drawings, if applicable
-
four additional sets of landscaping plans to be submitted to the Green
Infrastructure Services Department, if required
-
final latecomer submission, if applicable
When satisfied with the final design submission, the Municipality shall stamp one
set of drawings as accepted for construction (the Accepted Drawings) and return
it to the Owner's Engineer or Landscape Architect.
DR7 CIVIL AND LANDSCAPING COST ESTIMATE
The Owner's Engineer and Landscape Architect shall submit a digital and hard copy of
the cost estimates for provision of Works and Services detailed in accordance with the
requirements of the Municipality. Cost estimates are subject to revision by, and
acceptance of, the Municipality.
All hydro and telecommunication (including fiber optic ducts, as required) installation
costs are to be bonded, and are to be included in the calculation of the Administration
fee.
DR8 SERVICE RECORD CARDS
Service Record Cards are to indicate clearly and accurately the location, size, etc., of
each municipal utility connection. The Municipal Project Number shall be required on all
cards, but the roll number may be left blank. Service Record Cards are considered part
of the Record Document submission.
Schedule B | Design Criteria
Page 11
DR9 RECORD DOCUMENTS
Record documents shall be prepared and submitted in accordance with MMCD 01
721.1.7 and this Section.
The Owner's Engineer shall submit two complete sets of paper prints, except for the
road cross-section sheets, a complete set of connection cards and operations and
maintenance manuals required in accordance with Schedule B, Section D9.6 for
Municipal review.
The Owner's Engineer shall revise the record drawings and operations and maintenance
manuals in accordance with the marked-up set of copies returned by the Municipality
and may be required to resubmit operations and maintenance manuals and two paper
prints of record drawings for review.
1. Record drawings shall be presented as follows:
a) Key Plan showing water, sanitary and storm mains, street lights, roadworks,
bench marks and monuments. The plan shall show the as-constructed
offsets for those works and the locations of all service connections relative to
the lot lines.
b) Detailed plan/profile drawings for water, sanitary, storm and roadworks.
Elevations, inverts and offsets to show the works as constructed. The profile
drawings for the utilities shall state the pipe materials used and make and
model of all water valves and make and model of all hydrants shall be noted
on the water drawing.
c) Detention pond drawings complete with details of the control structure, and a
table of water level, flow and volume information for the required design
events.
d) Lot grading plans including the elevations at all lot corner pins, lawn basin
and catchbasin rim elevations and swales. Grades between lot corners and
control points shall be uniform unless indicated otherwise on the plan (to a
tolerance of ±100 mm).
e) Street light drawings showing make, model and type of luminaire unit and
locations of service bases and photocells.
f) Plans of details for which there is no standard provided in this Bylaw.
g) Instructions to the contractor are to be removed or amended to indicate the
results of construction. Previously existing works that have been removed or
reconstructed shall be removed or amended to show works as constructed.
h) Record Drawings shall be submitted together with service connection cards
as shown in Supplemental Standard Drawing TLG 02.
Schedule B | Design Criteria
Page 12
2. When the Municipal Engineer is satisfied with the record drawings and
Operations and Maintenance Manuals, the Owner's Engineer shall submit the
following:
a) A pdf version of civil and landscape drawings sign and sealed in accordance
with
-
APEGBC requirements, or
-
a direct scan of drawings
b) Two sets of paper prints identified in bold letters with the words "CERTIFIED
RECORD DRAWINGS" with the following certification:
"I certify this drawing reasonably represents the works
and services as installed, and were installed with
sufficient field reviews to ascertain that the work
substantially complied in all material respects with the
accepted design drawings and the Township of Langley
Subdivision
and
Development
Servicing
Bylaw."
The signature and seal shall be those of the Engineer who personally
performed or personally supervised the required inspections. One set shall
be returned to the Owner's Engineer upon acceptance by the Municipal
Engineer. The Municipal File Number must be added to each drawing.
c) One set of drawings in AutoCAD or DXF format, identified in bold letters with
the words "CERTIFIED RECORD DRAWINGS", to the acceptance of the
Municipal Engineer. The Municipal File Number must be added to each
drawing. Drawing files are required to:
i)
be opened using an unaltered copy of AutoCAD (no third party entities,
fonts etc.)
ii)
be plotted by using extents and a fit scale (or noted scale on the
appropriate paper size).
d) One full size scaleable pdf version of full civil and landscape drawings.
e) One copy of the "Certificate of Field Reviews" (Schedule G, Form F1) signed
by the Owner's Engineer.
f) Three paper copies of operations and maintenance manuals, plus one digital
in pdf format.
For a building permit, the Owner's Engineer shall provide 2 sets of on-site servicing and
lot grading as-built drawings upon completion of the works and services at the request of
the Municipal Engineer. Pertinent information shall include service connection sizes and
locations, driveway widths, light standard locations, and a lot grading plan including
MBEs.
The same procedure shall be followed for landscape plans which shall include the make
and model of street furniture, sign locations and vehicle restrictions, tree locations and
surface treatments and a plant list of materials used, and for operations and
maintenance manuals required in accordance with Schedule B, Section L3.9. The
Landscape Architect shall be responsible for submitting, revising and certifying
landscape plans.
When record documentation has been accepted by the Municipality, the Community
Development Division shall authorize a reduction of the security deposit.
Schedule B | Design Criteria
Page 13
DESIGN CRITERIA
SECTION D - Drainage
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 14
SECTION D - DRAINAGE
D1
INTRODUCTION
Stormwater collection and disposal systems shall be designed in accordance with any
applicable neighbourhood servicing plan or master drainage plan that has been adopted by the
Municipality and conform to applicable federal and provincial statutes including, but not limited
to, the Fisheries Act and Water Act. In addition, subdivision and development sites shall
provide on-site stormwater infiltration systems to replicate pre-development infiltration
conditions.
Where the Municipality has not finalized a master drainage plan or where works recommended
in such a Plan have not been completed, the Owner shall complete all works necessary to
service the Development together with interim stormwater management measures as required
by the Municipal Engineer to protect against downstream surcharge, flooding and erosion.
Interim detention shall not be permitted unless the Municipality or Owner has secured the land
necessary for a permanent detention facility.
No Development shall be allowed to change natural catchment boundaries.
D2
STORMWATER CONTROL PLANS
A stormwater control plan as detailed in Schedule B, Section DR5.3 shall be provided for all
Subdivisions except those in Service Level 4.
The Owner's Engineer shall be responsible for obtaining true and accurate surface elevations
for preparation of stormwater control plans and shall not rely on the accuracy of maps provided
by the Municipality.
A conceptual stormwater control plan shall be submitted to, and accepted by, the Municipal
Engineer prior to submission of detailed design drawings for a Subdivision where:
-
significant changes are proposed to the location or capacity of drainage facilities or sub
catchment boundaries shown in a neighbourhood servicing plan that has been accepted
by the Municipality; or
-
there is no neighbourhood servicing plan and the area of land proposed for Subdivision
is more than 5 ha.
The conceptual stormwater control plan shall include a report by the Owner's Engineer
describing in detail how the proposed Subdivision shall impact the fronting and downstream
drainage system and how the proposed major and minor drainage systems meet the
requirements of this Schedule. Existing facilities that are undersized or otherwise unacceptable
to the Municipal Engineer shall be upgraded at the Owner's expense to accommodate the
appropriate flows.
Where a Subdivision is phased, an overall stormwater control plan shall be submitted upon
application for the first phase and shall govern the Development of subsequent phases.
Schedule B | Design Criteria
Page 15
D3
DESIGN FREQUENCIES AND STORAGE RELEASE RATES
Minor and major conveyance systems shall be designed using 2100 Climate Change (see
Section D5 for information) post development flows for the following storm return frequencies:
-
Minor Systems:
1 in 5 year
(1 in 10 year for Bertrand Creek Watershed)
-
Major Systems:
1 in 100 year
Stormwater storage facilities shall limit 1 in 2 year, 1 in 5 year (1 in 10 year for Bertrand Creek
Watershed) and 1 in 100 year post development peak flows to equal the corresponding pre-
development peak flows as follows:
-
Environmental Detention - 2050 Climate Change flow from each post development
storm duration must match or be lower than the highest Current Climate pre-
development flow (highest of all durations calculated) for:
o 1 in 2 year
o 1 in 5 year
-
Peak Flow Control - 2050 Climate Change flow from each post development storm
duration must match or be lower than the highest Current Climate pre-development flow
(highest durations calculated) for:
o 1 in 10 year Bertrand Creek Watershed only
o 1 in 100 year for all watersheds
The detention facility outlet structure shall be designed such that all of the above detention
requirements can be met (or exceeded) with the same outlet design. The outlet design will likely
require multiple orifices and/or discharge elevations in order to achieve this.
D4
RUNOFF ANALYSIS
The Runoff Hydrograph Method shall be used to calculate peak runoff and for the design of
storage facilities except that the Rational Method may be used to calculate peak runoff from
areas up to 10 ha. All calculations pertinent to the design of the drainage system shall be
signed and sealed by the Owner's Engineer and submitted to the Municipal Engineer.
Analysis shall be based on calculation of post-development flows as if all land is developed in
accordance with the Official Community Plan. Calculation of pre-development flows for sizing of
storage facilities shall be based on "grassland" for the Rational Method and "meadow" for the
Soil Conservation Service and other methods.
D5
RATIONAL METHOD
The Rational Method formula is:
Q
=
RAIN
Where
R
=
Runoff Coefficient x Soil Adjustment Factor (SAF)
A
=
drainage area in ha
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02/12/24
Schedule B | Design Criteria
Page 16
I
=
rainfall intensity in mm/h
N
=
0.00278
The following runoff coefficients and soil adjustment factors are typical. The Owner's Engineer
shall verify that they are appropriate for the catchment area subject to the approval of the
Municipal Engineer.
Schedule B | Design Criteria
Page 17
D5.1
Presentation of Rational Calculations
The Owner's Engineer shall tabulate the rational method calculations on Table D1.
STORM SEWER DESIGN - RATIONAL METHOD
Q = RAIN
Q = Runoff (m3/s)
R = Runoff Coeff X SAF
A = Area (ha)
I = Rainfall Intensity (mm/h)
N = 0.00278
Ti
= Inlet Time (min)
Tt
= Travel Time (min)
Tc
= Time of Conc (min)
Qcap = Capacity (m3/s)
∅ = Pipe Diam (mm)
n = Roughness Coeff
s = Slope of Pipe (%)
V = Velocity (m/s)
L = Length (m)
Date:
Calc By:
Sheet: of
LOCATION
REF No.
Storm Frequency
Year
Location From
To
Tributary Area
Time of Flow
Storm
Sewer Design
Adj
Tt
min
Comments
R
A
ha
∑ RA
Ti
in
Tt
min
Tc
min
I
mm/h
Q
m3/s
Qcap
m3/s
∅
min
n
s
%
V
m/s
L
m
Table D1
Schedule B | Design Criteria
Page 18
D5.2
Runoff Coefficients
The following runoff coefficients shall be used for the Rational Formula:
Percent
Runoff Coefficient
Zone or Land Use
Impervious
5/10 Year
100 Year
Suburban Residential
20
0.35
0.50
Residential, Multiple Family,
Comprehensive Development
75
0.70
0.75
Commercial and Industrial
90
0.80
0.85
Institutional
80
0.75
0.80
Parks/Grasslands
20
0.20
0.30
Cultivated Fields
30
0.30
0.40
Woodlands
5
0.10
0.30
D5.3
Soil Adjustment Factor
A soil adjustment factor (SAF) shall be applied to the runoff coefficient to reflect
local ground conditions.
Surface Type
SAF
Permeable soil with flat slope (up to 5%)
0.9
Permeable soil with steep slope (over 5%)
1.0
Impermeable soil with flat slope (up to 5%)
1.0
Impermeable soil with steep slope (over 5%)
1.1
D5.4
Time of Concentration
The time of concentration is the time for water to flow from the most remote part
of the catchment area under consideration to the design node. For both urban
and rural areas, the time of concentration is:
Tc
=
Ti + Tt
Where
Tc
=
time of concentration (minutes)
Ti
=
inlet or overland flow time (minutes)
Tt
=
travel time in sewers, ditches, channels or
watercourses (minutes)
Inlet times to be used for urban Zones are:
Suburban Residential
10 minutes
Residential, Multiple Family, Comprehensive Development
8 minutes
Commercial, Industrial, Institutional
5 minutes
Schedule B | Design Criteria
Page 19
Inlet time in rural areas shall be calculated by the Airport Method:
3.26 (1.1 - C) L0.5
Ti
=
S0.33
Where
Ti
=
inlet time (minutes)
C
=
runoff coefficient (Section D5.1)
L
=
travel distance (m), maximum length = 300 m
S
=
slope of travel path (%)
Travel time in sewers, ditches, channels or watercourses shall be estimated using
the formula:
Ct L n
Tt =
12 s0.5
Where
Tt =
travel time (minutes)
Ct =
flow travel coefficient (0.5)
L =
length of flow (m)
n =
roughness coefficient
0.050
natural channels
0.030
excavated ditches
0.013
concrete lined channels
0.013
concrete or PVC pipe
s
=
slope in m/m
This equation provides an approximate travel time which shall be corrected with
the actual time of flow calculated from the hydraulic properties of the selected
pipe or channel. A composite value for Tt shall be calculated where the type of
flow along the longest path varies or the slope changes.
D5.5
Rainfall Intensity
The rainfall intensity for the Rational Formula shall be determined for the
calculated time of concentration using the appropriate Intensity- Duration-
Frequency curve (Figure D2-D5) selected in accordance with the Rainfall
Boundaries Map (Figure D1) and sections D5.6 and D5.7.
D5.6
Climate Change Rainfall Data
The 2100 CLIMATE CHANGE data shall be used to determine rainfall intensity
for the post-development condition and for general stormwater design for all
conveyance infrastructure and storage volume of on-site detention structures.
The 2050 CLIMATE CHANGE data shall be used to determine rainfall intensity
for the post-development conditions for design of detention storage volume of
community detention ponds.
Critical infrastructure, including bridge and culvert crossings of major arterial
roads, may be required to design to the 2100 CLIMATE CHANGE rainfall and
include an additional factor of safety at a multiplier of 1.2 at the discretion of the
Municipal Engineer.
#6076
02/12/24
Schedule B | Design Criteria
Page 20
D5.7
Current Rainfall Data
The CURRENT data shall be used to determine rainfall intensity for the pre-
development condition. Temporary stormwater infrastructure, with a useful life
estimate less than 5 years, may also use the Current IDF curves for the
appropriate zone for design.
DERBY
REACH
LOWLANDS
YORKSON
CREEK
NORTHWEST
LANGLEY
INDUSTRIAL
GLEN
VALLEY
(NATHAN
SLOUGH)
WEST
CREEK
NATHAN
CREEK
PALMATEER
CREEK
ANDERSON
CREEK
CAMPBELL
RIVER
PEPIN
CREEK
LATIMER
CREEK
UPPER
NICOMEKL
RIVER
SALMON
RIVER
BERTRAND
CREEK
MURRAY
CREEK
Zone 3
Zone 2
272 St
264 St
256 St
248 St
240 St
232 St
224 St
216 St
208 St
200 St
96 Ave
88 Ave
80 Ave
72 Ave
64 Ave
56 Ave
48 Ave
40 Ave
32 Ave
24 Ave
16 Ave
8 Ave
0 Ave
104 Ave
08-34
08-22
08-27
08-15
08-10
07-34
07-27
07-22
07-15
07-10
07-03
07-35
07-26
07-23
07-14
08-11
07-11
08-14
08-26
08-23
09-11
08-35
09-02
07-02
07-25
07-36
07-24
07-13
08-36
09-01
08-01
08-01
07-12
07-01
08-25
08-24
08-13
08-12
09-13
09-12
11-31
10-06
11-30
10-19
10-18
10-07
11-19
10-31
11-06
11-07
10-30
11-18
12-18
12-06
12-07
11-08
11-05
11-17
11-20
11-29
10-20
10-29
11-32
10-17
12-17
10-32
12-08
12-05
10-08
10-05
11-16
11-09
11-21
12-04
11-33
11-28
10-09
10-04
10-16
10-21
10-28
11-04
10-33
11-15
11-22
11-10
11-27
11-03
11-34
10-10
10-03
10-27
10-22
10-15
10-34
11-26
11-14
11-11
11-35
11-23
11-02
10-35
10-26
10-23
10-02
10-11
10-14
11-25
09-10
11-12
11-01
11-13
11-36
10-36
10-25
10-24
10-01
10-12
10-13
14-31
14-30
14-19
14-18
14-07
14-06
13-31
11-24
13-19
13-18
13-07
13-06
14-32
14-29
14-20
14-17
14-08
14-05
13-32
13-29
13-20
13-17
13-08
13-05
09-03
13-30
±
Figure D1
Rainfall Regional Map
F:\data\landdev\DevEng Maps\Bylaw4861Rainfall\Rainfall.mxd
Watershed Boundaries
Watershed Boundaries
Rainfall Boundaries
Zone 2
Zone 3
I = A (T/60)B
Where:
I = Intensity (mm/hr)
T = Time (min)
A
B
2yr
14.816
-0.465
5yr
21.359
-0.492
10yr
26.546
-0.508
25yr
34.344
-0.526
50yr
41.125
-0.539
100yr
48.879
-0.549
200yr
57.814
-0.560
Zone 2 - 2100 Moderate IDF Curve
Figure D2
Intensity Duration Frequency Data
2yr
5yr
10yr
25yr
50yr
100yr
200yr
5
10
15
30
60
120
180
720
1440
1
2
3
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
RAINFALL INTENSITY (mm/hr)
DURATION (min)
2yr
5yr
10yr
25yr
50yr
100yr
200yr
I = A (T/60)B
Where:
I = Intensity (mm/hr)
T = Time (min)
A
B
2yr
11.767
-0.469
5yr
15.842
-0.494
10yr
19.114
-0.508
25yr
24.098
-0.527
50yr
28.454
-0.539
100yr
33.425
-0.550
200yr
39.167
-0.562
Figure D3
Zone 2 - Current IDF
Intensity Duration Frequency Data
2yr
5yr
10yr
25yr
50yr
100yr
200yr
1
2
3
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
5
10
15
30
60
120
180
720
1440
RAINFALL INTENSITY (mm/hr)
DURATION (min)
2yr
5yr
10yr
25yr
50yr
100yr
200yr
I = A (T/60)B
Where:
I = Intensity (mm/hr)
T = Time (min)
A
B
2yr
16.168
-0.460
5yr
22.237
-0.481
10yr
26.281
-0.489
25yr
31.889
-0.496
50yr
36.458
-0.499
100yr
41.216
-0.500
200yr
46.265
-0.501
Zone 3 - 2100 Moderate IDF Curve
Intensity Duration Frequency Data
Figure D4
2yr
5yr
10yr
25yr
50yr
100yr
200yr
5
10
15
30
60
120
180
720
1440
1
2
3
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
RAINFALL INTENSITY (mm/hr)
DURATION (min)
2yr
5yr
10yr
25yr
50yr
100yr
200yr
I = A (T/60)B
Where:
I = Intensity (mm/hr)
T = Time (min)
A
B
2yr
12.158
-0.464
5yr
16.026
-0.482
10yr
18.757
-0.489
25yr
22.516
-0.497
50yr
25.416
-0.500
100yr
28.484
-0.501
200yr
31.712
-0.503
Figure D5
Zone 3 - Current IDF
Intensity Duration Frequency Data
2yr
5yr
10yr
25yr
50yr
100yr
200yr
1
2
3
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
5
10
15
30
60
120
180
720
1440
RAINFALL INTENSITY (mm/hr)
DURATION (min)
2yr
5yr
10yr
25yr
50yr
100yr
200yr
Where:
I = Intensity (mm/hr)
T = Time (min)
A
B
2 yr
13.006
-0.469
5 yr
17.554
-0.495
10 yr
21.476
-0.512
25 yr
27.094
-0.527
50 yr
32.257
-0.540
100 yr
38.039
-0.550
I = A (T/60)B
Figure D6
1.0
10.0
100.0
1
10
100
1000
Rainfall Intensity (mm/hr)
Duration (min)
Zone 2 - 2050 Median IDF Curve
Intensity Duration Frequency Data
2yr
5yr
10yr
25yr
50yr
100yr
Where:
I = Intensity (mm/hr)
T = Time (min)
A
B
2 yr
13.495
-0.464
5 yr
17.789
-0.482
10 yr
21.008
-0.489
25 yr
25.218
-0.497
50 yr
28.720
-0.500
100 yr
32.471
-0.501
I = A (T/60)B
Figure D7
1.0
10.0
100.0
1
10
100
1000
Rainfall Intensity (mm/hr)
Duration (min)
Zone 3 - 2050 Median IDF Curve
Intensity Duration Frequency Data
2yr
5yr
10yr
25yr
50yr
100yr
Schedule B | Design Criteria
Page 26
D6
RUNOFF HYDROGRAPH METHOD
D6.1
Selection of Modelling Program
For basins larger than 10 hectares, hydrograph programs shall be used for runoff
analyses. Standard runoff simulations shall be modeled with SWMM or HYMO
based programs. Other hydrograph programs may be considered if their uses
are deemed necessary and approved by the Municipal Engineer.
Conservative parameters shall be selected if calibration data is not available.
D6.2
Design Storms
Single event design storms with durations 1 hour to 24 hours and various return
frequencies are listed in Tables D2 to D13 and Tables D15 to D26 for Zones 2
and 3 respectively. The average rainfall intensities for various duration storms
are listed in Tables D14 and D27.
The selection of the tabulated hydrograph shall be based on the Rainfall
Boundaries Map (Figure D1). If the study area overlaps both regions, the
Owner's Engineer shall make necessary adjustments or interpolations in the
analysis.
Chicago distribution or SCS distribution design storms shall be used only for
storm pipe sizing. For sizing detention facilities, the AES distribution design
storms shall be used.
2100 CLIMATE CHANGE design storms shall be used for the post-development
condition and for general stormwater design. Critical infrastructure, including
bridge and culverts crossing of major arterial roads, may be required to design to
the 2100 Extreme Climate Change rainfall with an additional factor of safety of 1.2
applied to the rainfall, in approximation of the 95th percentile climate change
prediction, at the discretion of the Municipal Engineer.
CURRENT design storms shall be used for the pre-development condition.
Temporary stormwater infrastructure, with a useful life of less than 5 years, may
also use the Current rainfall data.
2050 CLIMATE CHANGE design storms shall be used for the post-development
conditions for design of community pond detention storage to detain post-
development peak flows to pre-development peak flow levels.
When the 2050 CLIMATE CHANGE design storms are used for post-
development conditions for design of detention, other means and methods must
be designed to convey and manage 1 in 100 year 2100 CLIMATE CHANGE peak
flow, such as spillway capacity, downstream conveyance, and energy dissipation.
For the simulation of large watersheds or complex drainage systems, including
those involving multiple detention facilities or infiltration systems, the Municipal
Engineer may require the use of extended duration and sequential storms or
continuous rainfall data. The Owner's Engineer shall obtain the appropriate
rainfall data for the analysis.
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
8.27
1.74
0:00
5.87
1.24
0:00
4.83
1.07
0:00
2.79
3.90
0:00
3.55
2.79
0:00
2.31
1.73
0:05
9.08
5.22
0:05
6.12
0:05
4.96
0:10
4.06
0:10
2.93
0:20
1.44
0:10
10.21
10.44
0:10
6.41
3.71
0:10
5.11
0:20
4.19
0:20
3.07
0:40
1.49
0:15
11.97
17.40
0:15
6.75
0:15
5.27
3.20
0:30
3.98
4.20
0:30
3.16
1:00
2.13
0:20
15.31
26.10
0:20
7.16
7.42
0:20
5.44
0:40
4.37
0:40
3.18
1:20
2.42
0:25
34.06
36.54
0:25
7.65
0:25
5.64
0:50
4.58
0:50
3.22
1:40
2.30
0:30
34.06
27.84
0:30
8.27 12.36
0:30
5.87
6.40
1:00
5.97
5.07
1:00
4.14
3.32
2:00
2.70
2.43
0:35
15.31
20.88
0:35
9.08
0:35
6.12
1:10
5.27
1:10
3.42
2:20
2.49
0:40
11.97
13.92
0:40
10.21 18.54
0:40
6.41
1:20
5.39
1:20
3.55
2:40
2.47
0:45
10.21
8.70
0:45
11.97
0:45
6.75 10.67
1:30
7.16
4.98
1:30
3.70
3:00
2.42
0:50
9.08
3.48
0:50
15.31 25.96
0:50
7.16
1:40
5.15
1:40
3.90
3:20
2.51
0:55
8.27
1.74
0:55
34.06
0:55
7.65
1:50
5.52
1:50
4.08
3:40
2.76
1:00
0.00
0.00
1:00
34.06 19.78
1:00
8.27 16.01
2:00
9.15
6.10
2:00
5.32
4.21
4:00
3.47
2.85
1:05
15.31
1:05
9.08
2:10
6.89
2:10
4.26
4:20
2.99
1:10
11.97 14.83
1:10
10.21
2:20
7.89
2:20
4.38
4:40
3.21
1:15
10.21
1:15
11.97 22.41
2:30
13.13 18.22
2:30
4.57
5:00
3.54
1:20
9.08
9.89
1:20
15.31
2:40
20.24
2:40
5.00
5:20
3.80
1:25
8.27
1:25
34.06
2:50
19.85
2:50
5.30
5:40
3.96
1:30
7.65
6.18
1:30
34.06 17.08
3:00
9.95 12.21
3:00
4.73
5.43
6:00
3.08
4.60
1:35
7.16
1:35
15.31
3:10
9.53
3:10
5.18
6:20
4.88
1:40
6.75
2.47
1:40
11.97
3:20
7.65
3:20
5.15
6:40
4.67
1:45
6.41
1:45
10.21 12.81
3:30
8.36
7.69
3:30
5.48
7:00
5.53
1:50
6.12
1.24
1:50
9.08
3:40
6.92
3:40
6.04
7:20
7.15
1:55
5.87
1:55
8.27
3:50
6.24
3:50
6.80
7:40
18.35
2:00
0.00
0.00
2:00
7.65
8.54
4:00
6.77
5.65
4:00
4.73
7.75
8:00
3.08 11.07
2:05
7.16
4:10
5.16
4:10
15.09
8:20
6.94
2:10
6.75
4:20
4.76
4:20
20.23
8:40
6.27
2:15
6.41
5.34
4:30
5.17
4.80
4:30
20.45
9:00
5.12
2:20
6.12
4:40
4.63
4:40
14.66
9:20
4.32
2:25
5.87
4:50
4.46
4:50
10.11
9:40
4.19
2:30
5.64
2.13
5:00
3.98
4.24
5:00
7.09
8.01 10:00
4.63
3.84
2:35
5.44
5:10
4.09
5:10
7.58 10:20
3.62
2:40
5.27
5:20
3.99
5:20
7.14 10:40
3.57
2:45
5.11
1.07
5:30
3.18
4.05
5:30
6.43 11:00
3.36
2:50
4.96
5:40
3.94
5:40
5.82 11:20
3.16
2:55
4.83
5:50
3.82
5:50
5.31 11:40
2.93
3:00
0.00
0.00
6:00
0.00
0.00
6:00
5.32
4.88 12:00
3.47
2.88
6:10
4.79 12:20
2.97
6:20
4.71 12:40
2.78
6:30
4.54 13:00
2.88
6:40
4.33 13:20
2.71
6:50
4.16 13:40
2.62
7:00
5.32
4.06 14:00
3.47
2.61
7:10
4.06 14:20
2.58
7:20
4.00 14:40
2.53
7:30
3.89 15:00
2.50
7:40
3.77 15:20
2.46
7:50
3.66 15:40
2.42
8:00
5.32
3.54 16:00
3.47
2.38
8:10
3.39 16:20
2.34
8:20
3.28 16:40
2.30
8:30
3.22 17:00
2.27
8:40
3.21 17:20
2.23
8:50
3.24 17:40
2.19
9:00
4.73
3.29 18:00
3.08
2.14
9:10
3.21 18:20
2.11
9:20
3.10 18:40
2.07
9:30
3.08 19:00
2.03
9:40
3.16 19:20
1.99
9:50
3.12 19:40
1.95
10:00
4.73
3.04 20:00
3.08
1.91
10:10
2.98 20:20
1.87
10:20
2.93 20:40
1.84
10:30
2.90 21:00
1.80
10:40
2.91 21:20
1.76
10:50
2.90 21:40
1.72
11:00
4.14
2.88 22:00
2.70
1.68
11:10
2.86 22:20
1.64
11:20
2.83 22:40
1.60
11:30
2.81 23:00
1.56
11:40
2.79 23:20
1.52
11:50
2.77 23:40
1.48
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
14.8
14.5
21.5
20.6
26.7
26.7
39.80
39.8
59.10
59.1
77.10
77.1
1:2 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2100 CLIMATE CHANGE
1 HR
2 HR
3 HR
6 HR
12 HR
Table D2
24 HR
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
11.33
2.50
0:00
7.87
1.70
0:00
6.40
1.49
0:00
3.74
5.24
0:00
4.81
3.78
0:00
3.13
2.34
0:05
12.51
7.49
0:05
8.23
0:05
6.59
0:10
5.45
0:10
3.98
0:20
1.95
0:10
14.17
14.98
0:10
8.65
5.11
0:10
6.80
0:20
5.63
0:20
4.16
0:40
2.02
0:15
16.77
24.96
0:15
9.14
0:15
7.02
4.48
0:30
5.34
5.64
0:30
4.28
1:00
2.88
0:20
21.76
37.44
0:20
9.72 10.22
0:20
7.27
0:40
5.86
0:40
4.31
1:20
3.27
0:25
51.61
52.42
0:25
10.43
0:25
7.56
0:50
6.14
0:50
4.38
1:40
3.12
0:30
51.61
39.94
0:30
11.33 17.04
0:30
7.87
8.95
1:00
8.01
6.80
1:00
5.61
4.50
2:00
3.65
3.29
0:35
21.76
29.95
0:35
12.51
0:35
8.23
1:10
7.07
1:10
4.65
2:20
3.37
0:40
16.77
19.97
0:40
14.17 25.56
0:40
8.65
1:20
7.23
1:20
4.81
2:40
3.34
0:45
14.17
12.48
0:45
16.77
0:45
9.14 14.92
1:30
9.61
6.68
1:30
5.02
3:00
3.28
0:50
12.51
4.99
0:50
21.76 35.78
0:50
9.72
1:40
6.91
1:40
5.29
3:20
3.40
0:55
11.33
2.50
0:55
51.61
0:55
10.43
1:50
7.41
1:50
5.53
3:40
3.74
1:00
0.00
0.00
1:00
51.61 27.26
1:00
11.33 22.38
2:00
12.28
8.18
2:00
7.22
5.72
4:00
4.69
3.85
1:05
21.76
1:05
12.51
2:10
9.25
2:10
5.78
4:20
4.05
1:10
16.77 20.45
1:10
14.17
2:20
10.59
2:20
5.94
4:40
4.34
1:15
14.17
1:15
16.77 31.34
2:30
17.62 24.44
2:30
6.21
5:00
4.79
1:20
12.51 13.63
1:20
21.76
2:40
27.16
2:40
6.78
5:20
5.14
1:25
11.33
1:25
51.61
2:50
26.64
2:50
7.19
5:40
5.36
1:30
10.43
8.52
1:30
51.61 23.88
3:00
13.35 16.39
3:00
6.42
7.37
6:00
4.17
6.22
1:35
9.72
1:35
21.76
3:10
12.78
3:10
7.02
6:20
6.61
1:40
9.14
3.41
1:40
16.77
3:20
10.27
3:20
6.99
6:40
6.32
1:45
8.65
1:45
14.17 17.91
3:30
11.21 10.32
3:30
7.43
7:00
7.48
1:50
8.23
1.70
1:50
12.51
3:40
9.28
3:40
8.19
7:20
9.68
1:55
7.87
1:55
11.33
3:50
8.37
3:50
9.22
7:40
24.83
2:00
0.00
0.00
2:00
10.43 11.94
4:00
9.08
7.58
4:00
6.42 10.51
8:00
4.17 14.98
2:05
9.72
4:10
6.92
4:10
20.47
8:20
9.39
2:10
9.14
4:20
6.39
4:20
27.46
8:40
8.48
2:15
8.65
7.46
4:30
6.94
6.44
4:30
27.75
9:00
6.93
2:20
8.23
4:40
6.21
4:40
19.90
9:20
5.84
2:25
7.87
4:50
5.98
4:50
13.72
9:40
5.67
2:30
7.56
2.98
5:00
5.34
5.68
5:00
9.62 10.87 10:00
6.26
5.19
2:35
7.27
5:10
5.49
5:10
10.28 10:20
4.90
2:40
7.02
5:20
5.36
5:20
9.69 10:40
4.83
2:45
6.80
1.49
5:30
4.27
5.43
5:30
8.73 11:00
4.55
2:50
6.59
5:40
5.28
5:40
7.90 11:20
4.27
2:55
6.40
5:50
5.13
5:50
7.20 11:40
3.97
3:00
0.00
0.00
6:00
0.00
0.00
6:00
7.22
6.63 12:00
4.69
3.89
6:10
6.50 12:20
4.02
6:20
6.39 12:40
3.76
6:30
6.16 13:00
3.89
6:40
5.88 13:20
3.67
6:50
5.65 13:40
3.55
7:00
7.22
5.51 14:00
4.69
3.54
7:10
5.51 14:20
3.49
7:20
5.43 14:40
3.43
7:30
5.27 15:00
3.38
7:40
5.12 15:20
3.32
7:50
4.96 15:40
3.28
8:00
7.22
4.81 16:00
4.69
3.22
8:10
4.60 16:20
3.17
8:20
4.45 16:40
3.12
8:30
4.38 17:00
3.07
8:40
4.36 17:20
3.01
8:50
4.39 17:40
2.96
9:00
6.42
4.47 18:00
4.17
2.90
9:10
4.36 18:20
2.85
9:20
4.21 18:40
2.80
9:30
4.18 19:00
2.74
9:40
4.29 19:20
2.69
9:50
4.24 19:40
2.64
10:00
6.42
4.12 20:00
4.17
2.59
10:10
4.04 20:20
2.53
10:20
3.97 20:40
2.49
10:30
3.93 21:00
2.43
10:40
3.95 21:20
2.38
10:50
3.94 21:40
2.32
11:00
5.61
3.91 22:00
3.65
2.27
11:10
3.88 22:20
2.22
11:20
3.84 22:40
2.17
11:30
3.82 23:00
2.11
11:40
3.79 23:20
2.06
11:50
3.76 23:40
2.01
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
21.4
20.8
30.4
28.4
37.3
37.3
53.40
53.4
80.20
80.2
104.30 104.3
3 HR
6 HR
12 HR
24 HR
1:5 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2100 CLIMATE CHANGE
Table D3
1 HR
2 HR
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
13.67
3.13
0:00
9.39
2.06
0:00
7.58
1.82
0:00
4.46
6.25
0:00
5.75
4.52
0:00
3.74
2.80
0:05
15.14
9.40
0:05
9.83
0:05
7.81
0:10
6.50
0:10
4.76
0:20
2.33
0:10
17.22
18.79
0:10
10.35
6.19
0:10
8.07
0:20
6.71
0:20
4.98
0:40
2.41
0:15
20.48
31.32
0:15
10.95
0:15
8.34
5.47
0:30
6.37
6.72
0:30
5.12
1:00
3.44
0:20
26.81
46.98
0:20
11.67 12.38
0:20
8.65
0:40
6.99
0:40
5.16
1:20
3.91
0:25
65.96
65.77
0:25
12.55
0:25
9.00
0:50
7.33
0:50
5.23
1:40
3.73
0:30
65.96
50.11
0:30
13.67 20.64
0:30
9.39 10.94
1:00
9.56
8.11
1:00
6.71
5.39
2:00
4.37
3.93
0:35
26.81
37.58
0:35
15.14
0:35
9.83
1:10
8.44
1:10
5.56
2:20
4.03
0:40
20.48
25.06
0:40
17.22 30.96
0:40
10.35
1:20
8.62
1:20
5.75
2:40
3.99
0:45
17.22
15.66
0:45
20.48
0:45
10.95 18.23
1:30
11.47
7.96
1:30
6.00
3:00
3.92
0:50
15.14
6.26
0:50
26.81 43.34
0:50
11.67
1:40
8.24
1:40
6.32
3:20
4.06
0:55
13.67
3.13
0:55
65.96
0:55
12.55
1:50
8.83
1:50
6.62
3:40
4.47
1:00
0.00
0.00
1:00
65.96 33.02
1:00
13.67 27.35
2:00
14.65
9.76
2:00
8.63
6.84
4:00
5.62
4.61
1:05
26.81
1:05
15.14
2:10
11.03
2:10
6.92
4:20
4.85
1:10
20.48 24.77
1:10
17.22
2:20
12.63
2:20
7.11
4:40
5.19
1:15
17.22
1:15
20.48 38.28
2:30
21.02 29.16
2:30
7.42
5:00
5.73
1:20
15.14 16.51
1:20
26.81
2:40
32.40
2:40
8.11
5:20
6.15
1:25
13.67
1:25
65.96
2:50
31.77
2:50
8.59
5:40
6.41
1:30
12.55 10.32
1:30
65.96 29.17
3:00
15.93 19.55
3:00
7.67
8.82
6:00
4.99
7.44
1:35
11.67
1:35
26.81
3:10
15.25
3:10
8.40
6:20
7.90
1:40
10.95
4.13
1:40
20.48
3:20
12.25
3:20
8.36
6:40
7.56
1:45
10.35
1:45
17.22 21.88
3:30
13.38 12.30
3:30
8.89
7:00
8.95
1:50
9.83
2.06
1:50
15.14
3:40
11.07
3:40
9.80
7:20
11.58
1:55
9.39
1:55
13.67
3:50
9.98
3:50
11.03
7:40
29.71
2:00
0.00
0.00
2:00
12.55 14.59
4:00
10.83
9.04
4:00
7.67 12.57
8:00
4.99 17.92
2:05
11.67
4:10
8.26
4:10
24.48
8:20
11.23
2:10
10.95
4:20
7.62
4:20
32.83
8:40
10.15
2:15
10.35
9.12
4:30
8.28
7.68
4:30
33.19
9:00
8.29
2:20
9.83
4:40
7.40
4:40
23.79
9:20
6.99
2:25
9.39
4:50
7.13
4:50
16.41
9:40
6.79
2:30
9.00
3.65
5:00
6.37
6.78
5:00
11.51 13.00 10:00
7.49
6.22
2:35
8.65
5:10
6.55
5:10
12.30 10:20
5.86
2:40
8.34
5:20
6.39
5:20
11.59 10:40
5.77
2:45
8.07
1.82
5:30
5.10
6.48
5:30
10.44 11:00
5.44
2:50
7.81
5:40
6.30
5:40
9.45 11:20
5.11
2:55
7.58
5:50
6.12
5:50
8.61 11:40
4.75
3:00
0.00
0.00
6:00
0.00
0.00
6:00
8.63
7.92 12:00
5.62
4.66
6:10
7.78 12:20
4.81
6:20
7.65 12:40
4.49
6:30
7.37 13:00
4.66
6:40
7.03 13:20
4.39
6:50
6.75 13:40
4.25
7:00
8.63
6.59 14:00
5.62
4.23
7:10
6.59 14:20
4.17
7:20
6.49 14:40
4.10
7:30
6.31 15:00
4.04
7:40
6.12 15:20
3.98
7:50
5.93 15:40
3.92
8:00
8.63
5.75 16:00
5.62
3.86
8:10
5.50 16:20
3.79
8:20
5.32 16:40
3.73
8:30
5.23 17:00
3.67
8:40
5.21 17:20
3.60
8:50
5.25 17:40
3.54
9:00
7.67
5.34 18:00
4.99
3.47
9:10
5.21 18:20
3.41
9:20
5.04 18:40
3.35
9:30
4.99 19:00
3.28
9:40
5.13 19:20
3.22
9:50
5.07 19:40
3.15
10:00
7.67
4.93 20:00
4.99
3.10
10:10
4.83 20:20
3.03
10:20
4.75 20:40
2.97
10:30
4.70 21:00
2.91
10:40
4.72 21:20
2.84
10:50
4.71 21:40
2.78
11:00
6.71
4.67 22:00
4.37
2.72
11:10
4.64 22:20
2.65
11:20
4.59 22:40
2.59
11:30
4.56 23:00
2.52
11:40
4.53 23:20
2.46
11:50
4.50 23:40
2.40
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
26.5
26.1
37.3
34.4
45.6
45.6
63.70
63.7
95.90
95.9
124.80 124.8
1 HR
2 HR
24 HR
1:10 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2100 CLIMATE CHANGE
3 HR
6 HR
12 HR
Table D4
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
23.14
6.24
0:00
15.41
3.51
0:00
12.24
3.21
0:00
7.42 10.40
0:00
9.41
7.39
0:00
6.18
4.62
0:05
25.85
18.72
0:05
16.21
0:05
12.64
0:10
10.82
0:10
7.78
0:20
3.85
0:10
29.71
37.44
0:10
17.12 10.53
0:10
13.08
0:20
11.17
0:20
8.14
0:40
3.99
0:15
35.84
62.40
0:15
18.20
0:15
13.57
9.62
0:30
10.60 11.19
0:30
8.37
1:00
5.69
0:20
47.96
93.60
0:20
19.50 21.06
0:20
14.11
0:40
11.63
0:40
8.43
1:20
6.46
0:25
130.78 131.04
0:25
21.10
0:25
14.72
0:50
12.19
0:50
8.55
1:40
6.16
0:30
130.78
99.84
0:30
23.14 35.10
0:30
15.41 19.25
1:00
15.90 13.50
1:00
10.98
8.80
2:00
7.21
6.49
0:35
47.96
74.88
0:35
25.85
0:35
16.21
1:10
14.04
1:10
9.09
2:20
6.65
0:40
35.84
49.92
0:40
29.71 52.65
0:40
17.12
1:20
14.35
1:20
9.41
2:40
6.60
0:45
29.71
31.20
0:45
35.84
0:45
18.20 32.08
1:30
19.08 13.25
1:30
9.81
3:00
6.47
0:50
25.85
12.48
0:50
47.96 73.71
0:50
19.50
1:40
13.72
1:40
10.33
3:20
6.71
0:55
23.14
6.24
0:55
130.78
0:55
21.10
1:50
14.70
1:50
10.82
3:40
7.39
1:00
0.00
0.00
1:00
130.78 56.16
1:00
23.14 48.12
2:00
24.38 16.24
2:00
14.11 11.18
4:00
9.27
7.61
1:05
47.96
1:05
25.85
2:10
18.36
2:10
11.31
4:20
8.00
1:10
35.84 42.12
1:10
29.71
2:20
21.01
2:20
11.62
4:40
8.57
1:15
29.71
1:15
35.84 67.37
2:30
34.98 48.52
2:30
12.14
5:00
9.46
1:20
25.85 28.08
1:20
47.96
2:40
53.91
2:40
13.25
5:20
10.16
1:25
23.14
1:25
130.78
2:50
52.87
2:50
14.05
5:40
10.59
1:30
21.10 17.55
1:30
130.78 51.33
3:00
26.50 32.53
3:00
12.54 14.42
6:00
8.24 12.28
1:35
19.50
1:35
47.96
3:10
25.37
3:10
13.73
6:20
13.05
1:40
18.20
7.02
1:40
35.84
3:20
20.39
3:20
13.67
6:40
12.48
1:45
17.12
1:45
29.71 38.50
3:30
22.26 20.48
3:30
14.53
7:00
14.78
1:50
16.21
3.51
1:50
25.85
3:40
18.42
3:40
16.02
7:20
19.12
1:55
15.41
1:55
23.14
3:50
16.61
3:50
18.03
7:40
49.06
2:00
0.00
0.00
2:00
21.10 25.66
4:00
18.02 15.04
4:00
12.54 20.55
8:00
8.24 29.60
2:05
19.50
4:10
13.74
4:10
40.03
8:20
18.55
2:10
18.20
4:20
12.68
4:20
53.69
8:40
16.76
2:15
17.12 16.04
4:30
13.78 12.77
4:30
54.26
9:00
13.69
2:20
16.21
4:40
12.32
4:40
38.91
9:20
11.54
2:25
15.41
4:50
11.87
4:50
26.82
9:40
11.21
2:30
14.72
6.42
5:00
10.60 11.28
5:00
18.82 21.26 10:00
12.37 10.26
2:35
14.11
5:10
10.90
5:10
20.10 10:20
9.68
2:40
13.57
5:20
10.64
5:20
18.95 10:40
9.54
2:45
13.08
3.21
5:30
8.48 10.78
5:30
17.06 11:00
8.99
2:50
12.64
5:40
10.48
5:40
15.45 11:20
8.44
2:55
12.24
5:50
10.18
5:50
14.08 11:40
7.84
3:00
0.00
0.00
6:00
0.00
0.00
6:00
14.11 12.96 12:00
9.27
7.69
6:10
12.71 12:20
7.94
6:20
12.50 12:40
7.42
6:30
12.04 13:00
7.69
6:40
11.50 13:20
7.25
6:50
11.04 13:40
7.01
7:00
14.11 10.77 14:00
9.27
6.99
7:10
10.77 14:20
6.89
7:20
10.61 14:40
6.77
7:30
10.31 15:00
6.68
7:40
10.01 15:20
6.57
7:50
9.70 15:40
6.48
8:00
14.11
9.40 16:00
9.27
6.37
8:10
8.99 16:20
6.26
8:20
8.80 16:40
6.16
8:30
8.55 17:00
6.06
8:40
8.52 17:20
5.95
8:50
8.58 17:40
5.85
9:00
12.54
8.74 18:00
8.24
5.73
9:10
8.52 18:20
5.63
9:20
8.23 18:40
5.53
9:30
8.17 19:00
5.42
9:40
8.38 19:20
5.32
9:50
8.29 19:40
5.21
10:00
12.54
8.05 20:00
8.24
5.11
10:10
7.90 20:20
5.00
10:20
7.77 20:40
4.91
10:30
7.69 21:00
4.80
10:40
7.72 21:20
4.69
10:50
7.70 21:40
4.59
11:00
10.98
7.64 22:00
7.21
4.49
11:10
7.58 22:20
4.38
11:20
7.51 22:40
4.28
11:30
7.46 23:00
4.16
11:40
7.41 23:20
4.07
11:50
7.35 23:40
3.96
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
48.9
52.0
66.8
58.5
80.2
80.2
106.00 106.0
156.80 156.8
206.10 206.1
24 HR
1 HR
2 HR
3 HR
6 HR
Table D5
1:100 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2100 CLIMATE CHANGE
12 HR
#6076
02/12/24
1:2 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D6
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
1.52
0:00
1.09
0:00
0.92
0:00
2.54
0:00
3.07
0:00
2.00
0:05
4.57
0:05
1.09
0:05
0.92
0:10
2.54
0:10
3.07
0:20
2.00
0:10
9.15
0:10
3.23
0:10
0.92
0:20
2.54
0:20
3.07
0:40
2.00
0:15
15.26
0:15
3.23
0:15
2.80
0:30
3.48
0:30
3.07
1:00
2.00
0:20
22.87
0:20
6.49
0:20
2.80
0:40
3.48
0:40
3.07
1:20
2.00
0:25
32.03
0:25
6.49
0:25
2.80
0:50
3.48
0:50
3.07
1:40
2.00
0:30
24.41
0:30
10.81
0:30
5.59
1:00
5.23
1:00
3.60
2:00
2.33
0:35
18.30
0:35
10.81
0:35
5.59
1:10
5.23
1:10
3.60
2:20
2.33
0:40
12.20
0:40
16.22
0:40
5.59
1:20
5.23
1:20
3.60
2:40
2.33
0:45
7.63
0:45
16.22
0:45
9.31
1:30
6.27
1:30
3.60
3:00
2.33
0:50
3.05
0:50
22.70
0:50
9.31
1:40
6.27
1:40
3.60
3:20
2.33
0:55
1.52
0:55
22.70
0:55
9.31
1:50
6.27
1:50
3.60
3:40
2.33
1:00
0.00
1:00
17.29
1:00
13.98
2:00
8.02
2:00
4.62
4:00
3.00
1:05
17.29
1:05
13.98
2:10
8.02
2:10
4.62
4:20
3.00
1:10
12.97
1:10
13.98
2:20
8.02
2:20
4.62
4:40
3.00
1:15
12.97
1:15
19.58
2:30
11.50
2:30
4.62
5:00
3.00
1:20
8.64
1:20
19.58
2:40
11.50
2:40
4.62
5:20
3.00
1:25
8.64
1:25
19.58
2:50
11.50
2:50
4.62
5:40
3.00
1:30
5.41
1:30
14.91
3:00
8.71
3:00
4.10
6:00
2.66
1:35
5.41
1:35
14.91
3:10
8.71
3:10
4.10
6:20
2.66
1:40
2.17
1:40
14.91
3:20
8.71
3:20
4.10
6:40
2.66
1:45
2.17
1:45
11.19
3:30
7.32
3:30
4.10
7:00
2.66
1:50
1.09
1:50
11.19
3:40
7.32
3:40
4.10
7:20
2.66
1:55
1.09
1:55
11.19
3:50
7.32
3:50
4.10
7:40
2.66
2:00
0.00
2:00
7.46
4:00
5.92
4:00
4.10
8:00
2.66
2:05
7.46
4:10
5.92
4:10
4.10
8:20
2.66
2:10
7.46
4:20
5.92
4:20
4.10
8:40
2.66
2:15
4.67
4:30
4.53
4:30
4.10
9:00
2.66
2:20
4.67
4:40
4.53
4:40
4.10
9:20
2.66
2:25
4.67
4:50
4.53
4:50
4.10
9:40
2.66
2:30
1.87
5:00
3.48
5:00
6.16
10:00
3.99
2:35
1.87
5:10
3.48
5:10
6.16
10:20
3.99
2:40
1.87
5:20
3.48
5:20
6.16
10:40
3.99
2:45
0.92
5:30
2.78
5:30
6.16
11:00
3.99
2:50
0.92
5:40
2.78
5:40
6.16
11:20
3.99
2:55
0.92
5:50
2.78
5:50
6.16
11:40
3.99
3:00
0.00
6:00
0.00
6:00
4.62
12:00
3.00
6:10
4.62
12:20
3.00
6:20
4.62
12:40
3.00
6:30
4.62
13:00
3.00
6:40
4.62
13:20
3.00
6:50
4.62
13:40
3.00
7:00
4.62
14:00
3.00
7:10
4.62
14:20
3.00
7:20
4.62
14:40
3.00
7:30
4.62
15:00
3.00
7:40
4.62
15:20
3.00
7:50
4.62
15:40
3.00
8:00
4.62
16:00
3.00
8:10
4.62
16:20
3.00
8:20
4.62
16:40
3.00
8:30
4.62
17:00
3.00
8:40
4.62
17:20
3.00
8:50
4.62
17:40
3.00
9:00
4.10
18:00
2.66
9:10
4.10
18:20
2.66
9:20
4.10
18:40
2.66
9:30
4.10
19:00
2.66
9:40
4.10
19:20
2.66
9:50
4.10
19:40
2.66
10:00
4.10
20:00
2.66
10:10
4.10
20:20
2.66
10:20
4.10
20:40
2.66
10:30
4.10
21:00
2.66
10:40
4.10
21:20
2.66
10:50
4.10
21:40
2.66
11:00
3.60
22:00
2.33
11:10
3.60
22:20
2.33
11:20
3.60
22:40
2.33
11:30
3.60
23:00
2.33
11:40
3.60
23:20
2.33
11:50
3.60
23:40
2.33
Rain (mm)
12:00
0.00
0:00
0.00
12.7
18.0
23.3
34.9
51.3
66.6
#6076
02/12/24
1:5 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D7
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
2.05
0:00
1.41
0:00
1.23
0:00
3.08
0:00
3.94
0:00
2.55
0:05
6.13
0:05
1.41
0:05
1.23
0:10
3.08
0:10
3.94
0:20
2.55
0:10
12.29
0:10
4.21
0:10
1.23
0:20
3.08
0:20
3.94
0:40
2.55
0:15
20.47
0:15
4.21
0:15
3.67
0:30
4.40
0:30
3.94
1:00
2.55
0:20
30.71
0:20
8.42
0:20
3.67
0:40
4.40
0:40
3.94
1:20
2.55
0:25
43.00
0:25
8.42
0:25
3.67
0:50
4.40
0:50
3.94
1:40
2.55
0:30
32.76
0:30
14.02
0:30
7.34
1:00
6.60
1:00
4.58
2:00
2.97
0:35
24.57
0:35
14.02
0:35
7.34
1:10
6.60
1:10
4.58
2:20
2.97
0:40
16.37
0:40
21.04
0:40
7.34
1:20
6.60
1:20
4.58
2:40
2.97
0:45
10.24
0:45
21.04
0:45
12.24
1:30
7.92
1:30
4.58
3:00
2.97
0:50
4.10
0:50
29.46
0:50
12.24
1:40
7.92
1:40
4.58
3:20
2.97
0:55
2.05
0:55
29.46
0:55
12.24
1:50
7.92
1:50
4.58
3:40
2.97
1:00
0.00
1:00
22.44
1:00
18.36
2:00
10.11
2:00
5.91
4:00
3.82
1:05
22.44
1:05
18.36
2:10
10.11
2:10
5.91
4:20
3.82
1:10
16.82
1:10
18.36
2:20
10.11
2:20
5.91
4:40
3.82
1:15
16.82
1:15
25.71
2:30
14.51
2:30
5.91
5:00
3.82
1:20
11.22
1:20
25.71
2:40
14.51
2:40
5.91
5:20
3.82
1:25
11.22
1:25
25.71
2:50
14.51
2:50
5.91
5:40
3.82
1:30
7.02
1:30
19.59
3:00
11.00
3:00
5.25
6:00
3.39
1:35
7.02
1:35
19.59
3:10
11.00
3:10
5.25
6:20
3.39
1:40
2.80
1:40
19.59
3:20
11.00
3:20
5.25
6:40
3.39
1:45
2.80
1:45
14.69
3:30
9.24
3:30
5.25
7:00
3.39
1:50
1.41
1:50
14.69
3:40
9.24
3:40
5.25
7:20
3.39
1:55
1.41
1:55
14.69
3:50
9.24
3:50
5.25
7:40
3.39
2:00
0.00
2:00
9.79
4:00
7.48
4:00
5.25
8:00
3.39
2:05
9.79
4:10
7.48
4:10
5.25
8:20
3.39
2:10
9.79
4:20
7.48
4:20
5.25
8:40
3.39
2:15
6.12
4:30
5.72
4:30
5.25
9:00
3.39
2:20
6.12
4:40
5.72
4:40
5.25
9:20
3.39
2:25
6.12
4:50
5.72
4:50
5.25
9:40
3.39
2:30
2.45
5:00
4.40
5:00
7.86
10:00
5.10
2:35
2.45
5:10
4.40
5:10
7.86
10:20
5.10
2:40
2.45
5:20
4.40
5:20
7.86
10:40
5.10
2:45
1.23
5:30
3.52
5:30
7.86
11:00
5.10
2:50
1.23
5:40
3.52
5:40
7.86
11:20
5.10
2:55
1.23
5:50
3.52
5:50
7.86
11:40
5.10
3:00
0.00
6:00
0.00
6:00
5.91
12:00
3.82
6:10
5.91
12:20
3.82
6:20
5.91
12:40
3.82
6:30
5.91
13:00
3.82
6:40
5.91
13:20
3.82
6:50
5.91
13:40
3.82
7:00
5.91
14:00
3.82
7:10
5.91
14:20
3.82
7:20
5.91
14:40
3.82
7:30
5.91
15:00
3.82
7:40
5.91
15:20
3.82
7:50
5.91
15:40
3.82
8:00
5.91
16:00
3.82
8:10
5.91
16:20
3.82
8:20
5.91
16:40
3.82
8:30
5.91
17:00
3.82
8:40
5.91
17:20
3.82
8:50
5.91
17:40
3.82
9:00
5.25
18:00
3.39
9:10
5.25
18:20
3.39
9:20
5.25
18:40
3.39
9:30
5.25
19:00
3.39
9:40
5.25
19:20
3.39
9:50
5.25
19:40
3.39
10:00
5.25
20:00
3.39
10:10
5.25
20:20
3.39
10:20
5.25
20:40
3.39
10:30
5.25
21:00
3.39
10:40
5.25
21:20
3.39
10:50
5.25
21:40
3.39
11:00
4.58
22:00
2.97
11:10
4.58
22:20
2.97
11:20
4.58
22:40
2.97
11:30
4.58
23:00
2.97
11:40
4.58
23:20
2.97
11:50
4.58
23:40
2.97
Rain (mm)
12:00
0.00
0:00
0.00
17.1
23.4
30.6
44.0
65.6
84.9
#6076
02/12/24
1:10 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D8
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
2.53
0:00
1.66
0:00
1.47
0:00
3.60
0:00
4.64
0:00
3.00
0:05
7.59
0:05
1.66
0:05
1.47
0:10
3.60
0:10
4.64
0:20
3.00
0:10
15.18
0:10
5.00
0:10
1.47
0:20
3.60
0:20
4.64
0:40
3.00
0:15
25.30
0:15
5.00
0:15
4.42
0:30
5.15
0:30
4.64
1:00
3.00
0:20
37.95
0:20
10.00
0:20
4.42
0:40
5.15
0:40
4.64
1:20
3.00
0:25
53.13
0:25
10.00
0:25
4.42
0:50
5.15
0:50
4.64
1:40
3.00
0:30
40.48
0:30
16.67
0:30
8.84
1:00
7.72
1:00
5.42
2:00
3.50
0:35
30.36
0:35
16.67
0:35
8.84
1:10
7.72
1:10
5.42
2:20
3.50
0:40
20.24
0:40
25.01
0:40
8.84
1:20
7.72
1:20
5.42
2:40
3.50
0:45
12.65
0:45
25.01
0:45
14.73
1:30
9.27
1:30
5.42
3:00
3.50
0:50
5.06
0:50
35.01
0:50
14.73
1:40
9.27
1:40
5.42
3:20
3.50
0:55
2.53
0:55
35.01
0:55
14.73
1:50
9.27
1:50
5.42
3:40
3.50
1:00
0.00
1:00
26.67
1:00
22.09
2:00
11.83
2:00
6.97
4:00
4.51
1:05
26.67
1:05
22.09
2:10
11.83
2:10
6.97
4:20
4.51
1:10
20.01
1:10
22.09
2:20
11.83
2:20
6.97
4:40
4.51
1:15
20.01
1:15
30.92
2:30
16.98
2:30
6.97
5:00
4.51
1:20
13.34
1:20
30.92
2:40
16.98
2:40
6.97
5:20
4.51
1:25
13.34
1:25
30.92
2:50
16.98
2:50
6.97
5:40
4.51
1:30
8.34
1:30
23.56
3:00
12.87
3:00
6.20
6:00
4.00
1:35
8.34
1:35
23.56
3:10
12.87
3:10
6.20
6:20
4.00
1:40
3.34
1:40
23.56
3:20
12.87
3:20
6.20
6:40
4.00
1:45
3.34
1:45
17.67
3:30
10.81
3:30
6.20
7:00
4.00
1:50
1.66
1:50
17.67
3:40
10.81
3:40
6.20
7:20
4.00
1:55
1.66
1:55
17.67
3:50
10.81
3:50
6.20
7:40
4.00
2:00
0.00
2:00
11.79
4:00
8.75
4:00
6.20
8:00
4.00
2:05
11.79
4:10
8.75
4:10
6.20
8:20
4.00
2:10
11.79
4:20
8.75
4:20
6.20
8:40
4.00
2:15
7.37
4:30
6.69
4:30
6.20
9:00
4.00
2:20
7.37
4:40
6.69
4:40
6.20
9:20
4.00
2:25
7.37
4:50
6.69
4:50
6.20
9:40
4.00
2:30
2.95
5:00
5.15
5:00
9.30
10:00
6.01
2:35
2.95
5:10
5.15
5:10
9.30
10:20
6.01
2:40
2.95
5:20
5.15
5:20
9.30
10:40
6.01
2:45
1.47
5:30
4.12
5:30
9.30
11:00
6.01
2:50
1.47
5:40
4.12
5:40
9.30
11:20
6.01
2:55
1.47
5:50
4.12
5:50
9.30
11:40
6.01
3:00
0.00
6:00
0.00
6:00
6.97
12:00
4.51
6:10
6.97
12:20
4.51
6:20
6.97
12:40
4.51
6:30
6.97
13:00
4.51
6:40
6.97
13:20
4.51
6:50
6.97
13:40
4.51
7:00
6.97
14:00
4.51
7:10
6.97
14:20
4.51
7:20
6.97
14:40
4.51
7:30
6.97
15:00
4.51
7:40
6.97
15:20
4.51
7:50
6.97
15:40
4.51
8:00
6.97
16:00
4.51
8:10
6.97
16:20
4.51
8:20
6.97
16:40
4.51
8:30
6.97
17:00
4.51
8:40
6.97
17:20
4.51
8:50
6.97
17:40
4.51
9:00
6.20
18:00
4.00
9:10
6.20
18:20
4.00
9:20
6.20
18:40
4.00
9:30
6.20
19:00
4.00
9:40
6.20
19:20
4.00
9:50
6.20
19:40
4.00
10:00
6.20
20:00
4.00
10:10
6.20
20:20
4.00
10:20
6.20
20:40
4.00
10:30
6.20
21:00
4.00
10:40
6.20
21:20
4.00
10:50
6.20
21:40
4.00
11:00
5.42
22:00
3.50
11:10
5.42
22:20
3.50
11:20
5.42
22:40
3.50
11:30
5.42
23:00
3.50
11:40
5.42
23:20
3.50
11:50
5.42
23:40
3.50
Rain (mm)
12:00
0.00
0:00
0.00
21.1
27.8
36.8
51.5
77.5
100.1
#6076
02/12/24
1:100 YR - ZONE 2 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D9
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
4.86
0:00
2.73
0:00
2.49
0:00
5.79
0:00
7.29
0:00
4.82
0:05
14.59
0:05
2.73
0:05
2.49
0:10
5.79
0:10
7.29
0:20
4.82
0:10
29.17
0:10
8.20
0:10
2.49
0:20
5.79
0:20
7.29
0:40
4.82
0:15
48.63
0:15
8.20
0:15
7.48
0:30
8.27
0:30
7.29
1:00
4.82
0:20
72.93
0:20
16.39
0:20
7.48
0:40
8.27
0:40
7.29
1:20
4.82
0:25
102.10
0:25
16.39
0:25
7.48
0:50
8.27
0:50
7.29
1:40
4.82
0:30
77.79
0:30
27.32
0:30
14.96
1:00
12.42
1:00
8.51
2:00
5.63
0:35
58.34
0:35
27.32
0:35
14.96
1:10
12.42
1:10
8.51
2:20
5.63
0:40
38.90
0:40
40.97
0:40
14.96
1:20
12.42
1:20
8.51
2:40
5.63
0:45
24.31
0:45
40.97
0:45
24.95
1:30
14.90
1:30
8.51
3:00
5.63
0:50
9.72
0:50
57.36
0:50
24.95
1:40
14.90
1:40
8.51
3:20
5.63
0:55
4.86
0:55
57.36
0:55
24.95
1:50
14.90
1:50
8.51
3:40
5.63
1:00
0.00
1:00
43.70
1:00
37.41
2:00
19.03
2:00
10.95
4:00
7.23
1:05
43.70
1:05
37.41
2:10
19.03
2:10
10.95
4:20
7.23
1:10
32.78
1:10
37.41
2:20
19.03
2:20
10.95
4:40
7.23
1:15
32.78
1:15
52.37
2:30
27.31
2:30
10.95
5:00
7.23
1:20
21.86
1:20
52.37
2:40
27.31
2:40
10.95
5:20
7.23
1:25
21.86
1:25
52.37
2:50
27.31
2:50
10.95
5:40
7.23
1:30
13.66
1:30
39.90
3:00
20.69
3:00
9.73
6:00
6.43
1:35
13.66
1:35
39.90
3:10
20.69
3:10
9.73
6:20
6.43
1:40
5.46
1:40
39.90
3:20
20.69
3:20
9.73
6:40
6.43
1:45
5.46
1:45
29.93
3:30
17.38
3:30
9.73
7:00
6.43
1:50
2.73
1:50
29.93
3:40
17.38
3:40
9.73
7:20
6.43
1:55
2.73
1:55
29.93
3:50
17.38
3:50
9.73
7:40
6.43
2:00
0.00
2:00
19.95
4:00
14.07
4:00
9.73
8:00
6.43
2:05
19.95
4:10
14.07
4:10
9.73
8:20
6.43
2:10
19.95
4:20
14.07
4:20
9.73
8:40
6.43
2:15
12.47
4:30
10.75
4:30
9.73
9:00
6.43
2:20
12.47
4:40
10.75
4:40
9.73
9:20
6.43
2:25
12.47
4:50
10.75
4:50
9.73
9:40
6.43
2:30
4.99
5:00
8.27
5:00
14.60
10:00
9.64
2:35
4.99
5:10
8.27
5:10
14.60
10:20
9.64
2:40
4.99
5:20
8.27
5:20
14.60
10:40
9.64
2:45
2.49
5:30
6.63
5:30
14.60
11:00
9.64
2:50
2.49
5:40
6.63
5:40
14.60
11:20
9.64
2:55
2.49
5:50
6.63
5:50
14.60
11:40
9.64
3:00
0.00
6:00
0.00
6:00
10.95
12:00
7.23
6:10
10.95
12:20
7.23
6:20
10.95
12:40
7.23
6:30
10.95
13:00
7.23
6:40
10.95
13:20
7.23
6:50
10.95
13:40
7.23
7:00
10.95
14:00
7.23
7:10
10.95
14:20
7.23
7:20
10.95
14:40
7.23
7:30
10.95
15:00
7.23
7:40
10.95
15:20
7.23
7:50
10.95
15:40
7.23
8:00
10.95
16:00
7.23
8:10
10.95
16:20
7.23
8:20
10.95
16:40
7.23
8:30
10.95
17:00
7.23
8:40
10.95
17:20
7.23
8:50
10.95
17:40
7.23
9:00
9.73
18:00
6.43
9:10
9.73
18:20
6.43
9:20
9.73
18:40
6.43
9:30
9.73
19:00
6.43
9:40
9.73
19:20
6.43
9:50
9.73
19:40
6.43
10:00
9.73
20:00
6.43
10:10
9.73
20:20
6.43
10:20
9.73
20:40
6.43
10:30
9.73
21:00
6.43
10:40
9.73
21:20
6.43
10:50
9.73
21:40
6.43
11:00
8.51
22:00
5.63
11:10
8.51
22:20
5.63
11:20
8.51
22:40
5.63
11:30
8.51
23:00
5.63
11:40
8.51
23:20
5.63
11:50
8.51
23:40
5.63
Rain (mm)
12:00
0.00
0:00
0.00
40.5
45.5
62.3
82.8
121.6
160.7
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
6.51
1.38
0:00
4.60
0.98
0:00
3.78
0.84
0:00
2.21
3.09
0:00
2.78
2.19
0:00
1.81
1.35
0:05
7.16
4.14
0:05
4.80
0:05
3.89
0:10
3.22
0:10
2.30
0:20
1.12
0:10
8.06
8.28
0:10
5.04
2.93
0:10
4.00
0:20
3.32
0:20
2.41
0:40
1.16
0:15
9.46 13.80
0:15
5.31
0:15
4.13
2.53
0:30
3.15
3.33
0:30
2.48
1:00
1.66
0:20
12.13 20.70
0:20
5.63
5.87
0:20
4.27
0:40
3.46
0:40
2.50
1:20
1.89
0:25
27.28 28.98
0:25
6.02
0:25
4.43
0:50
3.62
0:50
2.53
1:40
1.80
0:30
27.28 22.08
0:30
6.51
9.78
0:30
4.60
5.06
1:00
4.73
4.01
1:00
3.25
2.61
2:00
2.11
1.90
0:35
12.13 16.56
0:35
7.16
0:35
4.80
1:10
4.17
1:10
2.69
2:20
1.94
0:40
9.46 11.04
0:40
8.06 14.67
0:40
5.04
1:20
4.26
1:20
2.78
2:40
1.93
0:45
8.06
6.90
0:45
9.46
0:45
5.31
8.43
1:30
5.67
3.94
1:30
2.90
3:00
1.89
0:50
7.16
2.76
0:50
12.13 20.54
0:50
5.63
1:40
4.08
1:40
3.06
3:20
1.96
0:55
6.51
1.38
0:55
27.28
0:55
6.02
1:50
4.37
1:50
3.20
3:40
2.16
1:00
0.00
0.00
1:00
27.28 15.65
1:00
6.51 12.65
2:00
7.25
4.83
2:00
4.18
3.31
4:00
2.71
2.22
1:05
12.13
1:05
7.16
2:10
5.46
2:10
3.35
4:20
2.34
1:10
9.46 11.74
1:10
8.06
2:20
6.24
2:20
3.44
4:40
2.50
1:15
8.06
1:15
9.46 17.71
2:30 10.40 14.42
2:30
3.59
5:00
2.76
1:20
7.16
7.82
1:20
12.13
2:40
16.02
2:40
3.92
5:20
2.97
1:25
6.51
1:25
27.28
2:50
15.71
2:50
4.16
5:40
3.09
1:30
6.02
4.89
1:30
27.28 13.49
3:00
7.88
9.67
3:00
3.71
4.27
6:00
2.41
3.59
1:35
5.63
1:35
12.13
3:10
7.54
3:10
4.06
6:20
3.81
1:40
5.31
1.96
1:40
9.46
3:20
6.06
3:20
4.05
6:40
3.65
1:45
5.04
1:45
8.06 10.12
3:30
6.62
6.09
3:30
4.30
7:00
4.32
1:50
4.80
0.98
1:50
7.16
3:40
5.47
3:40
4.74
7:20
5.59
1:55
4.60
1:55
6.51
3:50
4.94
3:50
5.33
7:40
14.33
2:00
0.00
0.00
2:00
6.02
6.75
4:00
5.36
4.47
4:00
3.71
6.08
8:00
2.41
8.65
2:05
5.63
4:10
4.08
4:10
11.85
8:20
5.42
2:10
5.31
4:20
3.77
4:20
15.89
8:40
4.90
2:15
5.04
4.22
4:30
4.10
3.80
4:30
16.06
9:00
4.00
2:20
4.80
4:40
3.66
4:40
11.51
9:20
3.37
2:25
4.60
4:50
3.53
4:50
7.94
9:40
3.28
2:30
4.43
1.69
5:00
3.15
3.35
5:00
5.57
6.29
10:00
3.61
3.00
2:35
4.27
5:10
3.24
5:10
5.95
10:20
2.83
2:40
4.13
5:20
3.16
5:20
5.61
10:40
2.79
2:45
4.00
0.84
5:30
2.52
3.20
5:30
5.05
11:00
2.63
2:50
3.89
5:40
3.11
5:40
4.57
11:20
2.46
2:55
3.78
5:50
3.02
5:50
4.17
11:40
2.29
3:00
0.00
0.00
6:00
0.00
0.00
6:00
4.18
3.83
12:00
2.71
2.25
6:10
3.76
12:20
2.32
6:20
3.70
12:40
2.17
6:30
3.56
13:00
2.25
6:40
3.40
13:20
2.12
6:50
3.27
13:40
2.05
7:00
4.18
3.19
14:00
2.71
2.04
7:10
3.19
14:20
2.01
7:20
3.14
14:40
1.98
7:30
3.05
15:00
1.95
7:40
2.96
15:20
1.92
7:50
2.87
15:40
1.89
8:00
4.18
2.78
16:00
2.71
1.86
8:10
2.66
16:20
1.83
8:20
2.58
16:40
1.80
8:30
2.53
17:00
1.77
8:40
2.52
17:20
1.74
8:50
2.54
17:40
1.71
9:00
3.71
2.59
18:00
2.41
1.67
9:10
2.52
18:20
1.65
9:20
2.44
18:40
1.62
9:30
2.42
19:00
1.58
9:40
2.48
19:20
1.56
9:50
2.45
19:40
1.52
10:00
3.71
2.38
20:00
2.41
1.49
10:10
2.34
20:20
1.46
10:20
2.30
20:40
1.44
10:30
2.28
21:00
1.40
10:40
2.28
21:20
1.37
10:50
2.28
21:40
1.34
11:00
3.25
2.26
22:00
2.11
1.31
11:10
2.24
22:20
1.28
11:20
2.22
22:40
1.25
11:30
2.21
23:00
1.22
11:40
2.19
23:20
1.19
11:50
2.18
23:40
1.16
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
11.8
11.5
17.0
16.3
21.1
21.1
31.50
31.5
46.40
46.4
60.20
60.2
1:2 YR ZONE 2 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
Table D10
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
8.38
1.85
0:00
5.82
1.27
0:00
4.73
1.11
0:00
2.78
3.89
0:00
3.55
2.79
0:00
2.30
1.72
0:05
9.26
5.54
0:05
6.08
0:05
4.87
0:10
4.05
0:10
2.94
0:20
1.43
0:10
10.49 11.09
0:10
6.39
3.80
0:10
5.02
0:20
4.18
0:20
3.07
0:40
1.48
0:15
12.42 18.48
0:15
6.75
0:15
5.19
3.32
0:30
3.97
4.19
0:30
3.16
1:00
2.11
0:20
16.13 27.72
0:20
7.18
7.60
0:20
5.37
0:40
4.36
0:40
3.18
1:20
2.40
0:25
38.39 38.81
0:25
7.71
0:25
5.58
0:50
4.57
0:50
3.23
1:40
2.29
0:30
38.39 29.57
0:30
8.38 12.66
0:30
5.82
6.63
1:00
5.96
5.06
1:00
4.14
3.32
2:00
2.68
2.41
0:35
16.13 22.18
0:35
9.26
0:35
6.08
1:10
5.26
1:10
3.43
2:20
2.47
0:40
12.42 14.78
0:40
10.49 18.99
0:40
6.39
1:20
5.37
1:20
3.55
2:40
2.45
0:45
10.49
9.24
0:45
12.42
0:45
6.75 11.05
1:30
7.15
4.96
1:30
3.70
3:00
2.41
0:50
9.26
3.70
0:50
16.13 26.59
0:50
7.18
1:40
5.14
1:40
3.90
3:20
2.50
0:55
8.38
1.85
0:55
38.39
0:55
7.71
1:50
5.51
1:50
4.09
3:40
2.75
1:00
0.00
0.00
1:00
38.39 20.26
1:00
8.38 16.57
2:00
9.13
6.08
2:00
5.33
4.22
4:00
3.45
2.83
1:05
16.13
1:05
9.26
2:10
6.88
2:10
4.27
4:20
2.98
1:10
12.42 15.19
1:10
10.49
2:20
7.87
2:20
4.39
4:40
3.18
1:15
10.49
1:15
12.42 23.20
2:30 13.10 18.17
2:30
4.58
5:00
3.52
1:20
9.26 10.13
1:20
16.13
2:40
20.19
2:40
5.00
5:20
3.78
1:25
8.38
1:25
38.39
2:50
19.80
2:50
5.30
5:40
3.94
1:30
7.71
6.33
1:30
38.39 17.68
3:00
9.93 12.18
3:00
4.74
5.44
6:00
3.06
4.57
1:35
7.18
1:35
16.13
3:10
9.50
3:10
5.18
6:20
4.85
1:40
6.75
2.53
1:40
12.42
3:20
7.64
3:20
5.16
6:40
4.64
1:45
6.39
1:45
10.49 13.26
3:30
8.34
7.67
3:30
5.49
7:00
5.49
1:50
6.08
1.27
1:50
9.26
3:40
6.90
3:40
6.05
7:20
7.11
1:55
5.82
1:55
8.38
3:50
6.22
3:50
6.81
7:40
18.23
2:00
0.00
0.00
2:00
7.71
8.84
4:00
6.75
5.63
4:00
4.74
7.76
8:00
3.06 11.00
2:05
7.18
4:10
5.15
4:10
15.11
8:20
6.89
2:10
6.75
4:20
4.75
4:20
20.27
8:40
6.23
2:15
6.39
5.53
4:30
5.16
4.78
4:30
20.49
9:00
5.09
2:20
6.08
4:40
4.62
4:40
14.69
9:20
4.29
2:25
5.82
4:50
4.45
4:50
10.13
9:40
4.17
2:30
5.58
2.21
5:00
3.97
4.22
5:00
7.10
8.03
10:00
4.60
3.82
2:35
5.37
5:10
4.08
5:10
7.59
10:20
3.60
2:40
5.19
5:20
3.98
5:20
7.15
10:40
3.54
2:45
5.02
1.11
5:30
3.18
4.04
5:30
6.44
11:00
3.34
2:50
4.87
5:40
3.93
5:40
5.83
11:20
3.14
2:55
4.73
5:50
3.81
5:50
5.32
11:40
2.91
3:00
0.00
0.00
6:00
0.00
0.00
6:00
5.33
4.89
12:00
3.45
2.86
6:10
4.80
12:20
2.95
6:20
4.72
12:40
2.76
6:30
4.55
13:00
2.86
6:40
4.34
13:20
2.69
6:50
4.17
13:40
2.61
7:00
5.33
4.07
14:00
3.45
2.60
7:10
4.07
14:20
2.56
7:20
4.01
14:40
2.52
7:30
3.89
15:00
2.48
7:40
3.78
15:20
2.44
7:50
3.66
15:40
2.41
8:00
5.33
3.55
16:00
3.45
2.37
8:10
3.39
16:20
2.33
8:20
3.29
16:40
2.29
8:30
3.23
17:00
2.25
8:40
3.22
17:20
2.21
8:50
3.24
17:40
2.17
9:00
4.74
3.30
18:00
3.06
2.13
9:10
3.22
18:20
2.09
9:20
3.11
18:40
2.06
9:30
3.08
19:00
2.02
9:40
3.16
19:20
1.98
9:50
3.13
19:40
1.94
10:00
4.74
3.04
20:00
3.06
1.90
10:10
2.98
20:20
1.86
10:20
2.93
20:40
1.83
10:30
2.90
21:00
1.79
10:40
2.91
21:20
1.74
10:50
2.91
21:40
1.71
11:00
4.14
2.89
22:00
2.68
1.67
11:10
2.86
22:20
1.63
11:20
2.84
22:40
1.59
11:30
2.82
23:00
1.55
11:40
2.80
23:20
1.51
11:50
2.78
23:40
1.47
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
15.8
15.4
22.5
21.1
27.6
27.6
39.70
39.7
59.20
59.2
76.60
76.6
24 HR
Table D11
1:5 YR ZONE 2 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
1 HR
2 HR
3 HR
6 HR
12 HR
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
9.83
2.26
0:00
6.75
1.49
0:00
5.45
1.31
0:00
3.23
4.52
0:00
4.13
3.25
0:00
2.68
2.00
0:05
10.89
6.77
0:05
7.07
0:05
5.62
0:10
4.71
0:10
3.42
0:20
1.67
0:10
12.39 13.54
0:10
7.44
4.46
0:10
5.80
0:20
4.86
0:20
3.58
0:40
1.73
0:15
14.74 22.56
0:15
7.87
0:15
6.00
9.94
0:30
4.61
4.87
0:30
3.68
1:00
2.47
0:20
19.30 33.84
0:20
8.39
8.93
0:20
6.22
0:40
5.06
0:40
3.71
1:20
2.80
0:25
47.54 47.38
0:25
9.03
0:25
6.47
0:50
5.30
0:50
3.76
1:40
2.67
0:30
47.54 36.10
0:30
9.83 14.88
0:30
6.75
7.87
1:00
6.92
5.87
1:00
4.82
3.87
2:00
3.13
2.81
0:35
19.30 27.07
0:35
10.89
0:35
7.07
1:10
6.11
1:10
3.99
2:20
2.88
0:40
14.74 18.05
0:40
12.39 22.32
0:40
7.44
1:20
6.24
1:20
4.13
2:40
2.86
0:45
12.39 11.28
0:45
14.74
0:45
7.87 13.12
1:30
8.30
5.76
1:30
4.31
3:00
2.80
0:50
10.89
4.51
0:50
19.30 31.25
0:50
8.39
1:40
5.97
1:40
4.54
3:20
2.91
0:55
9.83
2.26
0:55
47.54
0:55
9.03
1:50
6.39
1:50
4.75
3:40
3.20
1:00
0.00
0.00
1:00
47.54 23.81
1:00
9.83 19.68
2:00 10.60
7.06
2:00
6.20
4.91
4:00
4.02
3.30
1:05
19.30
1:05
10.89
2:10
7.99
2:10
4.97
4:20
3.47
1:10
14.74 17.86
1:10
12.39
2:20
9.14
2:20
5.11
4:40
3.71
1:15
12.39
1:15
14.74 27.55
2:30 15.21 21.10
2:30
5.33
5:00
4.10
1:20
10.89 11.90
1:20
19.30
2:40
23.45
2:40
5.82
5:20
4.40
1:25
9.83
1:25
47.54
2:50
22.99
2:50
6.17
5:40
4.59
1:30
9.03
7.44
1:30
47.54 20.99
3:00 11.53 14.15
3:00
5.51
6.33
6:00
3.57
5.32
1:35
8.39
1:35
19.30
3:10
11.03
3:10
6.03
6:20
5.66
1:40
7.87
2.98
1:40
14.74
3:20
8.87
3:20
6.01
6:40
5.41
1:45
7.44
1:45
12.39 15.74
3:30
9.68
8.91
3:30
6.38
7:00
6.40
1:50
7.07
1.49
1:50
10.89
3:40
8.01
3:40
7.04
7:20
8.28
1:55
6.75
1:55
9.83
3:50
7.22
3:50
7.92
7:40
21.26
2:00
0.00
0.00
2:00
9.03 10.50
4:00
7.84
6.54
4:00
5.51
9.03
8:00
3.57 12.82
2:05
8.39
4:10
5.98
4:10
17.59
8:20
8.04
2:10
7.87
4:20
5.52
4:20
23.59
8:40
7.26
2:15
7.44
6.56
4:30
5.99
5.56
4:30
23.84
9:00
5.93
2:20
7.07
4:40
5.36
4:40
17.10
9:20
5.00
2:25
6.75
4:50
5.16
4:50
11.79
9:40
4.86
2:30
6.47
2.62
5:00
4.61
4.91
5:00
8.27
9.34
10:00
5.36
4.45
2:35
6.22
5:10
4.74
5:10
8.83
10:20
4.19
2:40
6.00
5:20
4.63
5:20
8.33
10:40
4.13
2:45
5.80
1.31
5:30
3.69
4.69
5:30
7.50
11:00
3.89
2:50
5.62
5:40
4.56
5:40
6.79
11:20
3.66
2:55
5.45
5:50
4.43
5:50
6.19
11:40
3.40
3:00
0.00
0.00
6:00
0.00
0.00
6:00
6.20
5.69
12:00
4.02
3.33
6:10
5.59
12:20
3.44
6:20
5.49
12:40
3.22
6:30
5.29
13:00
3.33
6:40
5.05
13:20
3.14
6:50
4.85
13:40
3.04
7:00
6.20
4.73
14:00
4.02
3.03
7:10
4.73
14:20
2.99
7:20
4.66
14:40
2.94
7:30
4.53
15:00
2.89
7:40
4.40
15:20
2.85
7:50
4.26
15:40
2.81
8:00
6.20
4.13
16:00
4.02
2.76
8:10
3.95
16:20
2.71
8:20
3.83
16:40
2.67
8:30
3.76
17:00
2.63
8:40
3.74
17:20
2.58
8:50
3.77
17:40
2.53
9:00
5.51
3.84
18:00
3.57
2.48
9:10
3.74
18:20
2.44
9:20
3.62
18:40
2.40
9:30
3.59
19:00
2.35
9:40
3.68
19:20
2.31
9:50
3.64
19:40
2.26
10:00
5.51
3.54
20:00
3.57
2.22
10:10
3.47
20:20
2.17
10:20
3.41
20:40
2.13
10:30
3.38
21:00
2.08
10:40
3.39
21:20
2.03
10:50
3.38
21:40
1.99
11:00
4.82
3.36
22:00
3.13
1.95
11:10
3.33
22:20
1.90
11:20
3.30
22:40
1.86
11:30
3.28
23:00
1.80
11:40
3.25
23:20
1.76
11:50
3.23
23:40
1.72
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
19.1
18.8
26.9
24.8
32.8
32.8
46.10
46.1
68.90
68.9
89.30
89.3
24 HR
12 HR
1 HR
2 HR
3 HR
6 HR
Table D12
1:10 YR ZONE 2 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
15.79
4.27
0:00
10.51
2.40
0:00
8.34
2.19
0:00
5.09
7.13
0:00
6.41
5.04
0:00
4.20
3.14
0:05
17.64 12.82
0:05
11.05
0:05
8.62
0:10
7.42
0:10
5.30
0:20
2.61
0:10
20.28 25.63
0:10
11.68
7.20
0:10
8.92
0:20
7.66
0:20
5.55
0:40
2.71
0:15
24.48 42.72
0:15
12.42
0:15
9.25
6.57
0:30
7.27
7.67
0:30
5.71
1:00
3.86
0:20
32.77 64.08
0:20
13.31 14.40
0:20
9.63
0:40
7.98
0:40
5.75
1:20
4.39
0:25
89.58 89.71
0:25
14.40
0:25
10.04
0:50
8.36
0:50
5.83
1:40
4.18
0:30
89.58 68.35
0:30
15.79 24.00
0:30
10.51 13.15
1:00 10.91
9.26
1:00
7.48
6.00
2:00
4.90
4.41
0:35
32.77 51.26
0:35
17.64
0:35
11.05
1:10
9.63
1:10
6.19
2:20
4.52
0:40
24.48 34.18
0:40
20.28 36.00
0:40
11.68
1:20
9.84
1:20
6.41
2:40
4.48
0:45
20.28 21.36
0:45
24.48
0:45
12.42 21.92
1:30 13.09
9.09
1:30
6.69
3:00
4.40
0:50
17.64
8.54
0:50
32.77 50.40
0:50
13.31
1:40
9.41
1:40
7.04
3:20
4.56
0:55
15.79
4.27
0:55
89.58
0:55
14.40
1:50
10.08
1:50
7.38
3:40
5.02
1:00
0.00
0.00
1:00
89.58 38.40
1:00
15.79 32.87
2:00 16.72 11.14
2:00
9.62
7.62
4:00
6.30
5.17
1:05
32.77
1:05
17.64
2:10
12.59
2:10
7.71
4:20
5.44
1:10
24.48 28.80
1:10
20.28
2:20
14.41
2:20
7.92
4:40
5.82
1:15
20.28
1:15
24.48 46.02
2:30 23.99 33.27
2:30
8.27
5:00
6.43
1:20
17.64 19.20
1:20
32.77
2:40
36.98
2:40
9.04
5:20
6.90
1:25
15.79
1:25
89.58
2:50
36.26
2:50
9.58
5:40
7.19
1:30
14.40 12.00
1:30
89.58 35.06
3:00 18.18 22.31
3:00
8.55
9.83
6:00
5.60
8.34
1:35
13.31
1:35
32.77
3:10
17.40
3:10
9.36
6:20
8.87
1:40
12.42
4.80
1:40
24.48
3:20
13.98
3:20
9.32
6:40
8.48
1:45
11.68
1:45
20.28 26.30
3:30 15.27 14.04
3:30
9.91
7:00
10.04
1:50
11.05
2.40
1:50
17.64
3:40
12.64
3:40
10.92
7:20
12.99
1:55
10.51
1:55
15.79
3:50
11.39
3:50
12.29
7:40
33.33
2:00
0.00
0.00
2:00
14.40 17.53
4:00 12.36 10.32
4:00
8.55 14.01
8:00
5.60 20.10
2:05
13.31
4:10
9.42
4:10
27.29
8:20
12.60
2:10
12.42
4:20
8.70
4:20
36.60
8:40
11.39
2:15
11.68 10.96
4:30
9.45
8.76
4:30
36.99
9:00
9.30
2:20
11.05
4:40
8.45
4:40
26.52
9:20
7.84
2:25
10.51
4:50
8.14
4:50
18.29
9:40
7.62
2:30
10.04
4.38
5:00
7.27
7.74
5:00
12.83 14.49
10:00
8.40
6.97
2:35
9.63
5:10
7.47
5:10
13.71
10:20
6.58
2:40
9.25
5:20
7.30
5:20
12.92
10:40
6.48
2:45
8.92
2.19
5:30
5.82
7.39
5:30
11.63
11:00
6.10
2:50
8.62
5:40
7.19
5:40
10.53
11:20
5.73
2:55
8.34
5:50
6.98
5:50
9.60
11:40
5.33
3:00
0.00
0.00
6:00
0.00
0.00
6:00
9.62
8.83
12:00
6.30
5.22
6:10
8.67
12:20
5.40
6:20
8.52
12:40
5.04
6:30
8.21
13:00
5.22
6:40
7.84
13:20
4.92
6:50
7.53
13:40
4.77
7:00
9.62
7.34
14:00
6.30
4.75
7:10
7.35
14:20
4.68
7:20
7.24
14:40
4.60
7:30
7.03
15:00
4.54
7:40
6.82
15:20
4.46
7:50
6.61
15:40
4.40
8:00
9.62
6.41
16:00
6.30
4.33
8:10
6.13
16:20
4.25
8:20
5.94
16:40
4.18
8:30
5.83
17:00
4.12
8:40
5.81
17:20
4.04
8:50
5.85
17:40
3.97
9:00
8.55
5.96
18:00
5.60
3.89
9:10
5.81
18:20
3.83
9:20
5.61
18:40
3.76
9:30
5.57
19:00
3.68
9:40
5.71
19:20
3.62
9:50
5.65
19:40
3.54
10:00
8.55
5.49
20:00
5.60
3.47
10:10
5.39
20:20
3.40
10:20
5.30
20:40
3.34
10:30
5.24
21:00
3.26
10:40
5.26
21:20
3.19
10:50
5.25
21:40
3.12
11:00
7.48
5.21
22:00
4.90
3.05
11:10
5.17
22:20
2.98
11:20
5.12
22:40
2.91
11:30
5.09
23:00
2.83
11:40
5.05
23:20
2.76
11:50
5.01
23:40
2.69
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
33.4
36.6
45.7
40.0
54.8
54.8
72.70
72.7
106.90 106.9
140.00 140.0
Table D13
1:100 YR ZONE 2 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
24 HR
1 HR
2 HR
3 HR
6 HR
12 HR
#6076
02/12/24
Return Period
Storm Duration
5-min
3.7
5.8
7.5
10.1
12.4
14.9
17.9
3.0
4.3
5.4
7.1
8.6
10.2
12.2
10-min
5.9
9.0
11.5
15.4
18.8
22.8
27.4
4.7
6.7
8.3
10.8
13.0
15.6
18.6
15-min
7.3
10.9
13.8
18.3
22.3
26.9
32.2
5.8
8.1
9.9
12.8
15.4
18.4
21.8
30-min
10.4
15.3
19.4
25.6
31.0
37.5
45.3
8.3
11.4
14.0
18.0
21.5
25.7
30.7
1-hr
14.5
20.8
26.1
34.6
42.5
52.0
63.5 11.5
15.4
18.8
24.3
29.4
35.6
43.0
2-hr
20.6
28.4
34.4
43.0
50.2
58.5
67.5 16.3
21.1
24.8
30.2
34.8
40.0
45.7
6-hr
39.8
53.4
63.7
78.7
91.6
106.0
122.3 31.5
39.7
46.1
55.5
63.6
72.7
83.0
12-hr
59.1
80.2
95.9 118.1 136.6
156.8
179.0 46.4
59.2
68.9
82.7
94.3
106.9
120.8
24-hr
77.1 104.3 124.8 154.1 178.8
206.1
236.4 60.2
76.6
89.3 107.5 122.9
140.0
159.0
Annual
Exceedance
Probability
50%
20%
10%
4%
2%
1%
0.50% 50%
20%
10%
4%
2%
1%
0.50%
Return Period
Storm Duration
5-min
47.0
72.6
93.8 127.1 156.8
191.4
232.6 37.8
54.1
67.6
89.3 108.7
131.2
158.2
10-min
34.1
51.6
66.0
88.2 107.9
130.8
157.7 27.3
38.4
47.5
61.9
74.8
89.6
107.2
15-min
28.2
42.3
53.7
71.3
86.8
104.7
125.7 22.6
31.4
38.7
50.0
60.1
71.7
85.3
30-min
20.4
30.0
37.7
49.5
59.7
71.5
85.2 16.3
22.3
27.2
34.7
41.4
48.9
57.8
1-hr
14.8
21.4
26.5
34.3
41.1
48.9
57.8 11.8
15.8
19.1
24.1
28.5
33.4
39.2
2-hr
10.7
15.2
18.7
23.8
28.3
33.4
39.2
8.5
11.2
13.4
16.7
19.6
22.8
26.5
6-hr
8.9
12.4
15.2
19.3
22.8
26.7
31.2
7.0
9.2
10.9
13.5
15.7
18.3
21.1
12-hr
4.7
6.3
7.5
9.3
10.8
12.5
14.4
3.7
4.6
5.4
6.5
7.5
8.5
9.7
24-hr
3.4
4.5
5.3
6.4
7.4
8.5
9.7
2.6
3.3
3.8
4.5
5.1
5.8
6.6
Annual
Exceedance
Probability
50%
20%
10%
4%
2%
1%
0.50% 50%
20%
10%
4%
2%
1%
0.50%
200yr
2yr
5yr
10yr
2yr
5yr
10yr
25yr
Total Rainfall (mm)
2100 Moderate IDF Curve
Current
2100 Moderate IDF Curve
Current
25yr
50yr
100yr
200yr
Rainfall Intensity (mm/hr)
50yr
100yr
2yr
5yr
10yr
25yr
Table D14
25yr
50yr
100yr
200yr
Zone 2 - AVERAGE RAINFALL
50yr
100yr
200yr
2yr
5yr
10yr
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
9.10
1.85
0:00
6.48
1.36
0:00
5.34
1.17
0:00
3.24
4.54
0:00
3.79
2.97
0:00
2.62
1.94
0:05
9.98
5.54
0:05
6.76
0:05
5.49
0:10
4.73
0:10
3.13
0:20
1.62
0:10
11.22
11.09
0:10
7.07
4.09
0:10
5.65
0:20
4.88
0:20
3.27
0:40
1.67
0:15
13.12
18.48
0:15
7.45
0:15
5.82
3.51
0:30
4.36
4.89
0:30
3.37
1:00
2.39
0:20
16.74
27.72
0:20
7.89
8.17
0:20
6.02
0:40
5.08
0:40
3.39
1:20
2.71
0:25
36.84
38.81
0:25
8.43
0:25
6.24
0:50
5.33
0:50
3.44
1:40
2.58
0:30
36.84
29.57
0:30
9.10 13.62
0:30
6.48
7.03
1:00
6.95
5.90
1:00
4.42
3.54
2:00
3.03
2.73
0:35
16.74
22.18
0:35
9.98
0:35
6.76
1:10
6.13
1:10
3.66
2:20
2.79
0:40
13.12
14.78
0:40
11.22 20.43
0:40
7.07
1:20
6.27
1:20
3.79
2:40
2.77
0:45
11.22
9.24
0:45
13.12
0:45
7.45 11.71
1:30
8.33
5.79
1:30
3.95
3:00
2.72
0:50
9.98
3.70
0:50
16.74 28.60
0:50
7.89
1:40
5.99
1:40
4.16
3:20
2.82
0:55
9.10
1.85
0:55
36.84
0:55
8.43
1:50
6.42
1:50
4.35
3:40
3.10
1:00
0.00
0.00
1:00
36.84 21.79
1:00
9.10 17.56
2:00
10.65
7.09
2:00
5.68
4.50
4:00
3.89
3.19
1:05
16.74
1:05
9.98
2:10
8.02
2:10
4.55
4:20
3.36
1:10
13.12 16.34
1:10
11.22
2:20
9.18
2:20
4.68
4:40
3.60
1:15
11.22
1:15
13.12 24.59
2:30
15.28 21.19
2:30
4.88
5:00
3.97
1:20
9.98 10.90
1:20
16.74
2:40
23.55
2:40
5.33
5:20
4.26
1:25
9.10
1:25
36.84
2:50
23.09
2:50
5.65
5:40
4.44
1:30
8.43
6.81
1:30
36.84 18.73
3:00
11.58 14.21
3:00
5.05
5.80
6:00
3.46
5.16
1:35
7.89
1:35
16.74
3:10
11.08
3:10
5.53
6:20
5.48
1:40
7.45
2.72
1:40
13.12
3:20
8.90
3:20
5.50
6:40
5.24
1:45
7.07
1:45
11.22 14.05
3:30
9.72
8.94
3:30
5.85
7:00
6.20
1:50
6.76
1.36
1:50
9.98
3:40
8.05
3:40
6.45
7:20
8.02
1:55
6.48
1:55
9.10
3:50
7.26
3:50
7.25
7:40
20.59
2:00
0.00
0.00
2:00
8.43
9.37
4:00
7.87
6.57
4:00
5.05
8.27
8:00
3.46 12.42
2:05
7.89
4:10
6.00
4:10
16.11
8:20
7.79
2:10
7.45
4:20
5.54
4:20
21.60
8:40
7.04
2:15
7.07
5.85
4:30
6.02
5.58
4:30
21.84
9:00
5.74
2:20
6.76
4:40
5.38
4:40
15.66
9:20
4.84
2:25
6.48
4:50
5.18
4:50
10.79
9:40
4.71
2:30
6.24
2.34
5:00
4.63
4.93
5:00
7.57
8.55 10:00
5.19
4.31
2:35
6.02
5:10
4.76
5:10
8.09 10:20
4.06
2:40
5.82
5:20
4.65
5:20
7.62 10:40
4.00
2:45
5.65
1.17
5:30
3.70
4.71
5:30
6.87 11:00
3.77
2:50
5.49
5:40
4.58
5:40
6.22 11:20
3.54
2:55
5.34
5:50
4.45
5:50
5.67 11:40
3.29
3:00
0.00
0.00
6:00
0.00
0.00
6:00
5.68
5.21 12:00
3.89
3.23
6:10
5.12 12:20
3.33
6:20
5.03 12:40
3.11
6:30
4.85 13:00
3.23
6:40
4.63 13:20
3.04
6:50
4.44 13:40
2.94
7:00
5.68
4.33 14:00
3.89
2.93
7:10
4.34 14:20
2.89
7:20
4.27 14:40
2.84
7:30
4.15 15:00
2.80
7:40
4.03 15:20
2.76
7:50
3.90 15:40
2.72
8:00
5.68
3.78 16:00
3.89
2.67
8:10
3.62 16:20
2.63
8:20
3.50 16:40
2.58
8:30
3.44 17:00
2.54
8:40
3.43 17:20
2.50
8:50
3.45 17:40
2.45
9:00
5.05
3.52 18:00
3.46
2.41
9:10
3.43 18:20
2.36
9:20
3.31 18:40
2.32
9:30
3.29 19:00
2.28
9:40
3.37 19:20
2.24
9:50
3.34 19:40
2.19
10:00
5.05
3.24 20:00
3.46
2.15
10:10
3.18 20:20
2.10
10:20
3.13 20:40
2.06
10:30
3.09 21:00
2.02
10:40
3.11 21:20
1.97
10:50
3.10 21:40
1.93
11:00
4.42
3.08 22:00
3.03
1.89
11:10
3.05 22:20
1.84
11:20
3.02 22:40
1.80
11:30
3.00 23:00
1.75
11:40
2.98 23:20
1.71
11:50
2.96 23:40
1.66
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
16.2
15.4
23.5
22.7
29.3
29.3
46.30
46.3
63.10
63.1
86.50
86.5
1:2 YR ZONE 3 DESIGN INTENSITY 2100 CLIMATE CHANGE (mm/hr)
1 HR
2 HR
3 HR
6 HR
Table D15
12 HR
24 HR
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
12.05
2.54
0:00
8.45
1.76
0:00
6.90
1.57
0:00
4.14
5.81
0:00
4.97
3.91
0:00
3.47
2.59
0:05
13.28
7.63
0:05
8.83
0:05
7.10
0:10
6.04
0:10
4.11
0:20
2.16
0:10
15.00
15.26
0:10
9.26
5.27
0:10
7.32
0:20
6.24
0:20
4.30
0:40
2.24
0:15
17.67
25.44
0:15
9.77
0:15
7.56
4.72
0:30
5.92
6.25
0:30
4.43
1:00
3.20
0:20
22.80
38.16
0:20
10.38 10.55
0:20
7.82
0:40
6.50
0:40
4.46
1:20
3.63
0:25
52.62
53.42
0:25
11.12
0:25
8.12
0:50
6.81
0:50
4.52
1:40
3.46
0:30
52.62
40.70
0:30
12.05 17.58
0:30
8.45
9.44
1:00
8.88
7.54
1:00
5.80
4.66
2:00
4.05
3.65
0:35
22.80
30.53
0:35
13.28
0:35
8.83
1:10
7.84
1:10
4.80
2:20
3.74
0:40
17.67
20.35
0:40
15.00 26.37
0:40
9.26
1:20
8.01
1:20
4.97
2:40
3.71
0:45
15.00
12.72
0:45
17.67
0:45
9.77 15.74
1:30
10.66
7.40
1:30
5.19
3:00
3.64
0:50
13.28
5.09
0:50
22.80 36.92
0:50
10.38
1:40
7.66
1:40
5.46
3:20
3.77
0:55
12.05
2.54
0:55
52.62
0:55
11.12
1:50
8.21
1:50
5.72
3:40
4.15
1:00
0.00
0.00
1:00
52.62 28.13
1:00
12.05 23.60
2:00
13.62
9.07
2:00
7.46
5.91
4:00
5.21
4.27
1:05
22.80
1:05
13.28
2:10
10.25
2:10
5.98
4:20
4.50
1:10
17.67 21.10
1:10
15.00
2:20
11.74
2:20
6.14
4:40
4.81
1:15
15.00
1:15
17.67 33.05
2:30
19.54 27.10
2:30
6.42
5:00
5.32
1:20
13.28 14.06
1:20
22.80
2:40
30.11
2:40
7.01
5:20
5.71
1:25
12.05
1:25
52.62
2:50
29.53
2:50
7.43
5:40
5.95
1:30
11.12
8.79
1:30
52.62 25.18
3:00
14.80 18.17
3:00
6.63
7.62
6:00
4.63
6.90
1:35
10.38
1:35
22.80
3:10
14.17
3:10
7.26
6:20
7.33
1:40
9.77
3.52
1:40
17.67
3:20
11.39
3:20
7.23
6:40
7.01
1:45
9.26
1:45
15.00 18.88
3:30
12.43 11.44
3:30
7.68
7:00
8.30
1:50
8.83
1.76
1:50
13.28
3:40
10.29
3:40
8.47
7:20
10.74
1:55
8.45
1:55
12.05
3:50
9.28
3:50
9.53
7:40
27.56
2:00
0.00
0.00
2:00
11.12 12.59
4:00
10.06
8.40
4:00
6.63 10.87
8:00
4.63 16.63
2:05
10.38
4:10
7.67
4:10
21.16
8:20
10.42
2:10
9.77
4:20
7.08
4:20
28.38
8:40
9.42
2:15
9.26
7.87
4:30
7.70
7.13
4:30
28.69
9:00
7.69
2:20
8.83
4:40
6.88
4:40
20.57
9:20
6.49
2:25
8.45
4:50
6.63
4:50
14.18
9:40
6.30
2:30
8.12
3.15
5:00
5.92
6.30
5:00
9.95 11.24 10:00
6.95
5.77
2:35
7.82
5:10
6.09
5:10
10.63 10:20
5.44
2:40
7.56
5:20
5.94
5:20
10.02 10:40
5.36
2:45
7.32
1.57
5:30
4.74
6.02
5:30
9.02 11:00
5.05
2:50
7.10
5:40
5.85
5:40
8.17 11:20
4.74
2:55
6.90
5:50
5.68
5:50
7.44 11:40
4.40
3:00
0.00
0.00
6:00
0.00
0.00
6:00
7.46
6.85 12:00
5.21
4.32
6:10
6.72 12:20
4.46
6:20
6.61 12:40
4.17
6:30
6.37 13:00
4.32
6:40
6.08 13:20
4.07
6:50
5.84 13:40
3.94
7:00
7.46
5.69 14:00
5.21
3.93
7:10
5.70 14:20
3.87
7:20
5.61 14:40
3.81
7:30
5.45 15:00
3.75
7:40
5.29 15:20
3.69
7:50
5.13 15:40
3.64
8:00
7.46
4.97 16:00
5.21
3.58
8:10
4.75 16:20
3.52
8:20
4.60 16:40
3.46
8:30
4.52 17:00
3.41
8:40
4.50 17:20
3.34
8:50
4.54 17:40
3.29
9:00
6.63
4.62 18:00
4.63
3.22
9:10
4.50 18:20
3.17
9:20
4.35 18:40
3.11
9:30
4.32 19:00
3.05
9:40
4.43 19:20
2.99
9:50
4.38 19:40
2.93
10:00
6.63
4.26 20:00
4.63
2.87
10:10
4.18 20:20
2.81
10:20
4.11 20:40
2.76
10:30
4.06 21:00
2.70
10:40
4.08 21:20
2.64
10:50
4.07 21:40
2.58
11:00
5.80
4.04 22:00
4.05
2.52
11:10
4.01 22:20
2.46
11:20
3.97 22:40
2.41
11:30
3.94 23:00
2.34
11:40
3.92 23:20
2.29
11:50
3.89 23:40
2.23
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
22.2
21.2
31.9
29.3
39.3
39.3
59.20
59.2
82.90
82.9
115.80 115.8
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Table D16
1:5 YR ZONE 3 DESIGN INTENSITY 2100 CLIMATE CHANGE (mm/hr)
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
14.03
3.00
0:00
9.78
2.02
0:00
7.96
1.84
0:00
4.70
6.58
0:00
5.77
4.53
0:00
4.09
3.06
0:05
15.49
9.00
0:05
10.22
0:05
8.20
0:10
6.85
0:10
4.77
0:20
2.55
0:10
17.53
18.00
0:10
10.74
6.07
0:10
8.45
0:20
7.07
0:20
4.99
0:40
2.64
0:15
20.71
30.00
0:15
11.34
0:15
8.73
5.53
0:30
6.71
7.08
0:30
5.14
1:00
3.77
0:20
26.83
45.00
0:20
12.05 12.13
0:20
9.04
0:40
7.37
0:40
5.17
1:20
4.27
0:25
63.10
63.00
0:25
12.93
0:25
9.39
0:50
7.72
0:50
5.25
1:40
4.07
0:30
63.10
48.00
0:30
14.03 20.22
0:30
9.78 11.06
1:00
10.07
8.55
1:00
6.73
5.40
2:00
4.77
4.30
0:35
26.83
36.00
0:35
15.49
0:35
10.22
1:10
8.89
1:10
5.57
2:20
4.40
0:40
20.71
24.00
0:40
17.53 30.33
0:40
10.74
1:20
9.08
1:20
5.77
2:40
4.37
0:45
17.53
15.00
0:45
20.71
0:45
11.34 18.43
1:30
12.08
8.39
1:30
6.02
3:00
4.28
0:50
15.49
6.00
0:50
26.83 42.46
0:50
12.05
1:40
8.68
1:40
6.34
3:20
4.44
0:55
14.03
3.00
0:55
63.10
0:55
12.93
1:50
9.31
1:50
6.64
3:40
4.89
1:00
0.00
0.00
1:00
63.10 32.35
1:00
14.03 27.65
2:00
15.43 10.28
2:00
8.66
6.86
4:00
6.14
5.03
1:05
26.83
1:05
15.49
2:10
11.62
2:10
6.94
4:20
5.30
1:10
20.71 24.26
1:10
17.53
2:20
13.30
2:20
7.13
4:40
5.67
1:15
17.53
1:15
20.71 38.71
2:30
22.14 30.71
2:30
7.45
5:00
6.26
1:20
15.49 16.18
1:20
26.83
2:40
34.13
2:40
8.13
5:20
6.72
1:25
14.03
1:25
63.10
2:50
33.47
2:50
8.62
5:40
7.01
1:30
12.93 10.11
1:30
63.10 29.49
3:00
16.78 20.59
3:00
7.70
8.84
6:00
5.46
8.13
1:35
12.05
1:35
26.83
3:10
16.06
3:10
8.43
6:20
8.64
1:40
11.34
4.04
1:40
20.71
3:20
12.90
3:20
8.39
6:40
8.26
1:45
10.74
1:45
17.53 22.12
3:30
14.09 12.96
3:30
8.91
7:00
9.78
1:50
10.22
2.02
1:50
15.49
3:40
11.66
3:40
9.83
7:20
12.65
1:55
9.78
1:55
14.03
3:50
10.51
3:50
11.06
7:40
32.47
2:00
0.00
0.00
2:00
12.93 14.75
4:00
11.41
9.52
4:00
7.70 12.61
8:00
5.46 19.59
2:05
12.05
4:10
8.70
4:10
24.56
8:20
12.28
2:10
11.34
4:20
8.03
4:20
32.94
8:40
11.09
2:15
10.74
9.22
4:30
8.72
8.09
4:30
33.29
9:00
9.06
2:20
10.22
4:40
7.80
4:40
23.87
9:20
7.64
2:25
9.78
4:50
7.51
4:50
16.46
9:40
7.42
2:30
9.39
3.69
5:00
6.71
7.14
5:00
11.54 13.04 10:00
8.18
6.79
2:35
9.04
5:10
6.90
5:10
12.33 10:20
6.41
2:40
8.73
5:20
6.73
5:20
11.62 10:40
6.31
2:45
8.45
1.84
5:30
5.37
6.83
5:30
10.47 11:00
5.95
2:50
8.20
5:40
6.63
5:40
9.48 11:20
5.58
2:55
7.96
5:50
6.44
5:50
8.64 11:40
5.19
3:00
0.00
0.00
6:00
0.00
0.00
6:00
8.66
7.95 12:00
6.14
5.09
6:10
7.80 12:20
5.26
6:20
7.67 12:40
4.91
6:30
7.39 13:00
5.09
6:40
7.05 13:20
4.80
6:50
6.77 13:40
4.64
7:00
8.66
6.61 14:00
6.14
4.62
7:10
6.61 14:20
4.56
7:20
6.51 14:40
4.48
7:30
6.33 15:00
4.42
7:40
6.14 15:20
4.35
7:50
5.95 15:40
4.29
8:00
8.66
5.77 16:00
6.14
4.22
8:10
5.51 16:20
4.14
8:20
5.34 16:40
4.07
8:30
5.25 17:00
4.01
8:40
5.22 17:20
3.94
8:50
5.27 17:40
3.87
9:00
7.70
5.36 18:00
5.46
3.79
9:10
5.22 18:20
3.73
9:20
5.05 18:40
3.66
9:30
5.01 19:00
3.59
9:40
5.14 19:20
3.52
9:50
5.08 19:40
3.45
10:00
7.70
4.94 20:00
5.46
3.38
10:10
4.85 20:20
3.31
10:20
4.77 20:40
3.25
10:30
4.72 21:00
3.18
10:40
4.73 21:20
3.11
10:50
4.72 21:40
3.04
11:00
6.73
4.69 22:00
4.77
2.97
11:10
4.65 22:20
2.90
11:20
4.61 22:40
2.83
11:30
4.58 23:00
2.76
11:40
4.54 23:20
2.69
11:50
4.51 23:40
2.62
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
26.3
25.0
37.5
33.7
46.1
46.1
67.10
67.1
96.20
96.2
136.40 136.4
Table D17
24 HR
1 HR
2 HR
3 HR
6 HR
12 HR
1:10 YR ZONE 3 DESIGN INTENSITY 2100 CLIMATE CHANGE (mm/hr)
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
21.53
4.79
0:00
14.87
2.98
0:00
12.05
2.85
0:00
6.61
9.26
0:00
8.81
6.92
0:00
6.56
4.90
0:05
23.82
14.36
0:05
15.57
0:05
12.41
0:10
9.64
0:10
7.29
0:20
4.08
0:10
27.04
28.73
0:10
16.37
8.93
0:10
12.81
0:20
9.94
0:20
7.62
0:40
4.23
0:15
32.07
47.88
0:15
17.30
0:15
13.24
8.56
0:30
9.44
9.97
0:30
7.84
1:00
6.04
0:20
41.81
71.82
0:20
18.43 17.86
0:20
13.73
0:40
10.36
0:40
7.90
1:20
6.86
0:25
101.04 100.55
0:25
19.80
0:25
14.26
0:50
10.86
0:50
8.01
1:40
6.54
0:30
101.04
76.61
0:30
21.53 29.76
0:30
14.87 17.13
1:00
14.16 12.02
1:00
10.28
8.25
2:00
7.66
6.89
0:35
41.81
57.46
0:35
23.82
0:35
15.57
1:10
12.51
1:10
8.51
2:20
7.06
0:40
32.07
38.30
0:40
27.04 44.64
0:40
16.37
1:20
12.78
1:20
8.81
2:40
7.00
0:45
27.04
23.94
0:45
32.07
0:45
17.30 28.54
1:30
16.99 11.80
1:30
9.19
3:00
6.87
0:50
23.82
9.58
0:50
41.81 62.50
0:50
18.43
1:40
12.22
1:40
9.68
3:20
7.13
0:55
21.53
4.79
0:55
101.04
0:55
19.80
1:50
13.09
1:50
10.14
3:40
7.84
1:00
0.00
0.00
1:00
101.04 47.62
1:00
21.53 42.81
2:00
21.71 14.46
2:00
13.22 10.47
4:00
9.85
8.07
1:05
41.81
1:05
23.82
2:10
16.35
2:10
10.59
4:20
8.50
1:10
32.07 35.71
1:10
27.04
2:20
18.71
2:20
10.88
4:40
9.10
1:15
27.04
1:15
32.07 59.94
2:30
31.15 43.21
2:30
11.37
5:00
10.04
1:20
23.82 23.81
1:20
41.81
2:40
48.01
2:40
12.42
5:20
10.79
1:25
21.53
1:25
101.04
2:50
47.09
2:50
13.16
5:40
11.24
1:30
19.80 14.88
1:30
101.04 45.67
3:00
23.60 28.97
3:00
11.75 13.50
6:00
8.75 13.04
1:35
18.43
1:35
41.81
3:10
22.59
3:10
12.87
6:20
13.86
1:40
17.30
5.95
1:40
32.07
3:20
18.15
3:20
12.81
6:40
13.25
1:45
16.37
1:45
27.04 34.25
3:30
19.82 18.23
3:30
13.61
7:00
15.69
1:50
15.57
2.98
1:50
23.82
3:40
16.41
3:40
15.01
7:20
20.30
1:55
14.87
1:55
21.53
3:50
14.79
3:50
16.89
7:40
52.08
2:00
0.00
0.00
2:00
19.80 22.83
4:00
16.05 13.39
4:00
11.75 19.25
8:00
8.75 31.42
2:05
18.43
4:10
12.24
4:10
37.50
8:20
19.69
2:10
17.30
4:20
11.30
4:20
50.30
8:40
17.80
2:15
16.37 14.27
4:30
12.27 11.38
4:30
50.84
9:00
14.53
2:20
15.57
4:40
10.97
4:40
36.45
9:20
12.25
2:25
14.87
4:50
10.57
4:50
25.13
9:40
11.90
2:30
14.26
5.71
5:00
9.44 10.05
5:00
17.63 19.92 10:00
13.13 10.90
2:35
13.73
5:10
9.70
5:10
18.83 10:20
10.28
2:40
13.24
5:20
9.47
5:20
17.75 10:40
10.12
2:45
12.81
2.85
5:30
7.55
9.60
5:30
15.98 11:00
9.54
2:50
12.41
5:40
9.33
5:40
14.47 11:20
8.96
2:55
12.05
5:50
9.06
5:50
13.19 11:40
8.32
3:00
0.00
0.00
6:00
0.00
0.00
6:00
13.22 12.14 12:00
9.85
8.16
6:10
11.91 12:20
8.43
6:20
11.71 12:40
7.88
6:30
11.28 13:00
8.16
6:40
10.77 13:20
7.70
6:50
10.34 13:40
7.45
7:00
13.22 10.09 14:00
9.85
7.42
7:10
10.09 14:20
7.32
7:20
9.94 14:40
7.19
7:30
9.66 15:00
7.09
7:40
9.37 15:20
6.97
7:50
9.09 15:40
6.88
8:00
13.22
8.80 16:00
9.85
6.76
8:10
8.42 16:20
6.64
8:20
8.16 16:40
6.54
8:30
8.01 17:00
6.43
8:40
7.98 17:20
6.32
8:50
8.04 17:40
6.21
9:00
11.75
8.18 18:00
8.75
6.08
9:10
7.98 18:20
5.98
9:20
7.71 18:40
5.87
9:30
7.65 19:00
5.76
9:40
7.85 19:20
5.65
9:50
7.76 19:40
5.53
10:00
11.75
7.54 20:00
8.75
5.43
10:10
7.40 20:20
5.31
10:20
7.28 20:40
5.22
10:30
7.20 21:00
5.10
10:40
7.23 21:20
4.98
10:50
7.21 21:40
4.87
11:00
10.28
7.16 22:00
7.66
4.77
11:10
7.10 22:20
4.65
11:20
7.04 22:40
4.54
11:30
6.99 23:00
4.42
11:40
6.94 23:20
4.32
11:50
6.89 23:40
4.21
Rain (mm)
12:00
0.00
0.00 24:00
0.00
0.00
41.2
39.9
58.3
49.6
71.4
71.4
94.40
94.4
146.90 146.9
218.80 218.8
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Table D18
1:100 YR ZONE 3 DESIGN INTENSITY 2100 CLIMATE CHANGE (mm/hr)
#6076
02/12/24
1:2 YR - ZONE 3 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D19
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
1.54
0:00
1.12
0:00
0.97
0:00
2.66
0:00
3.11
0:00
2.16
0:05
4.62
0:05
1.12
0:05
0.97
0:10
2.66
0:10
3.11
0:20
2.16
0:10
9.23
0:10
3.34
0:10
0.97
0:20
2.66
0:20
3.11
0:40
2.16
0:15
15.38
0:15
3.34
0:15
2.91
0:30
3.80
0:30
3.11
1:00
2.16
0:20
23.08
0:20
6.69
0:20
2.91
0:40
3.80
0:40
3.11
1:20
2.16
0:25
32.31
0:25
6.69
0:25
2.91
0:50
3.80
0:50
3.11
1:40
2.16
0:30
24.61
0:30
11.14
0:30
5.81
1:00
5.70
1:00
3.63
2:00
2.51
0:35
18.46
0:35
11.14
0:35
5.81
1:10
5.70
1:10
3.63
2:20
2.51
0:40
12.31
0:40
16.71
0:40
5.81
1:20
5.70
1:20
3.63
2:40
2.51
0:45
7.69
0:45
16.71
0:45
9.68
1:30
6.84
1:30
3.63
3:00
2.51
0:50
3.07
0:50
23.40
0:50
9.68
1:40
6.84
1:40
3.63
3:20
2.51
0:55
1.54
0:55
23.40
0:55
9.68
1:50
6.84
1:50
3.63
3:40
2.51
1:00
0.00
1:00
17.83
1:00
14.53
2:00
8.74
2:00
4.66
4:00
3.23
1:05
17.83
1:05
14.53
2:10
8.74
2:10
4.66
4:20
3.23
1:10
13.37
1:10
14.53
2:20
8.74
2:20
4.66
4:40
3.23
1:15
13.37
1:15
20.34
2:30
12.54
2:30
4.66
5:00
3.23
1:20
8.91
1:20
20.34
2:40
12.54
2:40
4.66
5:20
3.23
1:25
8.91
1:25
20.34
2:50
12.54
2:50
4.66
5:40
3.23
1:30
5.57
1:30
15.50
3:00
9.51
3:00
4.14
6:00
2.87
1:35
5.57
1:35
15.50
3:10
9.51
3:10
4.14
6:20
2.87
1:40
2.23
1:40
15.50
3:20
9.51
3:20
4.14
6:40
2.87
1:45
2.23
1:45
11.63
3:30
7.98
3:30
4.14
7:00
2.87
1:50
1.12
1:50
11.63
3:40
7.98
3:40
4.14
7:20
2.87
1:55
1.12
1:55
11.63
3:50
7.98
3:50
4.14
7:40
2.87
2:00
0.00
2:00
7.75
4:00
6.47
4:00
4.14
8:00
2.87
2:05
7.75
4:10
6.47
4:10
4.14
8:20
2.87
2:10
7.75
4:20
6.47
4:20
4.14
8:40
2.87
2:15
4.84
4:30
4.94
4:30
4.14
9:00
2.87
2:20
4.84
4:40
4.94
4:40
4.14
9:20
2.87
2:25
4.84
4:50
4.94
4:50
4.14
9:40
2.87
2:30
1.93
5:00
3.80
5:00
6.22
10:00
4.30
2:35
1.93
5:10
3.80
5:10
6.22
10:20
4.30
2:40
1.93
5:20
3.80
5:20
6.22
10:40
4.30
2:45
0.97
5:30
3.04
5:30
6.22
11:00
4.30
2:50
0.97
5:40
3.04
5:40
6.22
11:20
4.30
2:55
0.97
5:50
3.04
5:50
6.22
11:40
4.30
3:00
0.00
6:00
0.00
6:00
4.66
12:00
3.23
6:10
4.66
12:20
3.23
6:20
4.66
12:40
3.23
6:30
4.66
13:00
3.23
6:40
4.66
13:20
3.23
6:50
4.66
13:40
3.23
7:00
4.66
14:00
3.23
7:10
4.66
14:20
3.23
7:20
4.66
14:40
3.23
7:30
4.66
15:00
3.23
7:40
4.66
15:20
3.23
7:50
4.66
15:40
3.23
8:00
4.66
16:00
3.23
8:10
4.66
16:20
3.23
8:20
4.66
16:40
3.23
8:30
4.66
17:00
3.23
8:40
4.66
17:20
3.23
8:50
4.66
17:40
3.23
9:00
4.14
18:00
2.87
9:10
4.14
18:20
2.87
9:20
4.14
18:40
2.87
9:30
4.14
19:00
2.87
9:40
4.14
19:20
2.87
9:50
4.14
19:40
2.87
10:00
4.14
20:00
2.87
10:10
4.14
20:20
2.87
10:20
4.14
20:40
2.87
10:30
4.14
21:00
2.87
10:40
4.14
21:20
2.87
10:50
4.14
21:40
2.87
11:00
3.63
22:00
2.51
11:10
3.63
22:20
2.51
11:20
3.63
22:40
2.51
11:30
3.63
23:00
2.51
11:40
3.63
23:20
2.51
11:50
3.63
23:40
2.51
Rain (mm)
12:00
0.00
0:00
0.00
12.8
18.6
24.2
38.0
51.8
71.8
#6076
02/12/24
1:5 YR - ZONE 3 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D20
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
2.04
0:00
1.40
0:00
1.25
0:00
3.30
0:00
3.94
0:00
2.78
0:05
6.10
0:05
1.40
0:05
1.25
0:10
3.30
0:10
3.94
0:20
2.78
0:10
12.21
0:10
4.19
0:10
1.25
0:20
3.30
0:20
3.94
0:40
2.78
0:15
20.34
0:15
4.19
0:15
3.77
0:30
4.71
0:30
3.94
1:00
2.78
0:20
30.51
0:20
8.38
0:20
3.77
0:40
4.71
0:40
3.94
1:20
2.78
0:25
42.72
0:25
8.38
0:25
3.77
0:50
4.71
0:50
3.94
1:40
2.78
0:30
32.55
0:30
13.96
0:30
7.53
1:00
7.07
1:00
4.61
2:00
3.25
0:35
24.41
0:35
13.96
0:35
7.53
1:10
7.07
1:10
4.61
2:20
3.25
0:40
16.27
0:40
20.94
0:40
7.53
1:20
7.07
1:20
4.61
2:40
3.25
0:45
10.17
0:45
20.94
0:45
12.55
1:30
8.38
1:30
4.61
3:00
3.25
0:50
4.07
0:50
29.31
0:50
12.55
1:40
8.38
1:40
4.61
3:20
3.25
0:55
2.04
0:55
29.31
0:55
12.55
1:50
8.38
1:50
4.61
3:40
3.25
1:00
0.00
1:00
22.33
1:00
18.82
2:00
10.83
2:00
5.93
4:00
4.17
1:05
22.33
1:05
18.82
2:10
10.83
2:10
5.93
4:20
4.17
1:10
16.75
1:10
18.82
2:20
10.83
2:20
5.93
4:40
4.17
1:15
16.75
1:15
26.36
2:30
15.54
2:30
5.93
5:00
4.17
1:20
11.17
1:20
26.36
2:40
15.54
2:40
5.93
5:20
4.17
1:25
11.17
1:25
26.36
2:50
15.54
2:50
5.93
5:40
4.17
1:30
6.98
1:30
20.07
3:00
11.78
3:00
5.26
6:00
3.70
1:35
6.98
1:35
20.07
3:10
11.78
3:10
5.26
6:20
3.70
1:40
2.79
1:40
20.07
3:20
11.78
3:20
5.26
6:40
3.70
1:45
2.79
1:45
15.06
3:30
9.89
3:30
5.26
7:00
3.70
1:50
1.40
1:50
15.06
3:40
9.89
3:40
5.26
7:20
3.70
1:55
1.40
1:55
15.06
3:50
9.89
3:50
5.26
7:40
3.70
2:00
0.00
2:00
10.04
4:00
8.01
4:00
5.26
8:00
3.70
2:05
10.04
4:10
8.01
4:10
5.26
8:20
3.70
2:10
10.04
4:20
8.01
4:20
5.26
8:40
3.70
2:15
6.27
4:30
6.13
4:30
5.26
9:00
3.70
2:20
6.27
4:40
6.13
4:40
5.26
9:20
3.70
2:25
6.27
4:50
6.13
4:50
5.26
9:40
3.70
2:30
2.51
5:00
4.71
5:00
7.90
10:00
5.56
2:35
2.51
5:10
4.71
5:10
7.90
10:20
5.56
2:40
2.51
5:20
4.71
5:20
7.90
10:40
5.56
2:45
1.25
5:30
3.77
5:30
7.90
11:00
5.56
2:50
1.25
5:40
3.77
5:40
7.90
11:20
5.56
2:55
1.25
5:50
3.77
5:50
7.90
11:40
5.56
3:00
0.00
6:00
0.00
6:00
5.93
12:00
4.17
6:10
5.93
12:20
4.17
6:20
5.93
12:40
4.17
6:30
5.93
13:00
4.17
6:40
5.93
13:20
4.17
6:50
5.93
13:40
4.17
7:00
5.93
14:00
4.17
7:10
5.93
14:20
4.17
7:20
5.93
14:40
4.17
7:30
5.93
15:00
4.17
7:40
5.93
15:20
4.17
7:50
5.93
15:40
4.17
8:00
5.93
16:00
4.17
8:10
5.93
16:20
4.17
8:20
5.93
16:40
4.17
8:30
5.93
17:00
4.17
8:40
5.93
17:20
4.17
8:50
5.93
17:40
4.17
9:00
5.26
18:00
3.70
9:10
5.26
18:20
3.70
9:20
5.26
18:40
3.70
9:30
5.26
19:00
3.70
9:40
5.26
19:20
3.70
9:50
5.26
19:40
3.70
10:00
5.26
20:00
3.70
10:10
5.26
20:20
3.70
10:20
5.26
20:40
3.70
10:30
5.26
21:00
3.70
10:40
5.26
21:20
3.70
10:50
5.26
21:40
3.70
11:00
4.61
22:00
3.25
11:10
4.61
22:20
3.25
11:20
4.61
22:40
3.25
11:30
4.61
23:00
3.25
11:40
4.61
23:20
3.25
11:50
4.61
23:40
3.25
Rain (mm)
12:00
0.00
0:00
0.00
17.0
23.3
31.4
47.1
65.8
92.6
#6076
02/12/24
1:10 YR - ZONE 3 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D21
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
2.41
0:00
1.61
0:00
1.48
0:00
3.76
0:00
4.60
0:00
3.29
0:05
7.23
0:05
1.61
0:05
1.48
0:10
3.76
0:10
4.60
0:20
3.29
0:10
14.47
0:10
4.83
0:10
1.48
0:20
3.76
0:20
4.60
0:40
3.29
0:15
24.12
0:15
4.83
0:15
4.44
0:30
5.37
0:30
4.60
1:00
3.29
0:20
36.18
0:20
9.66
0:20
4.44
0:40
5.37
0:40
4.60
1:20
3.29
0:25
50.65
0:25
9.66
0:25
4.44
0:50
5.37
0:50
4.60
1:40
3.29
0:30
38.59
0:30
16.10
0:30
8.86
1:00
8.05
1:00
5.38
2:00
3.84
0:35
28.95
0:35
16.10
0:35
8.86
1:10
8.05
1:10
5.38
2:20
3.84
0:40
19.29
0:40
24.15
0:40
8.86
1:20
8.05
1:20
5.38
2:40
3.84
0:45
12.06
0:45
24.15
0:45
14.77
1:30
9.66
1:30
5.38
3:00
3.84
0:50
4.83
0:50
33.81
0:50
14.77
1:40
9.66
1:40
5.38
3:20
3.84
0:55
2.41
0:55
33.81
0:55
14.77
1:50
9.66
1:50
5.38
3:40
3.84
1:00
0.00
1:00
25.76
1:00
22.14
2:00
12.34
2:00
6.92
4:00
4.93
1:05
25.76
1:05
22.14
2:10
12.34
2:10
6.92
4:20
4.93
1:10
19.32
1:10
22.14
2:20
12.34
2:20
6.92
4:40
4.93
1:15
19.32
1:15
31.00
2:30
17.71
2:30
6.92
5:00
4.93
1:20
12.88
1:20
31.00
2:40
17.71
2:40
6.92
5:20
4.93
1:25
12.88
1:25
31.00
2:50
17.71
2:50
6.92
5:40
4.93
1:30
8.05
1:30
23.62
3:00
13.42
3:00
6.14
6:00
4.38
1:35
8.05
1:35
23.62
3:10
13.42
3:10
6.14
6:20
4.38
1:40
3.22
1:40
23.62
3:20
13.42
3:20
6.14
6:40
4.38
1:45
3.22
1:45
17.72
3:30
11.27
3:30
6.14
7:00
4.38
1:50
1.61
1:50
17.72
3:40
11.27
3:40
6.14
7:20
4.38
1:55
1.61
1:55
17.72
3:50
11.27
3:50
6.14
7:40
4.38
2:00
0.00
2:00
11.81
4:00
9.13
4:00
6.14
8:00
4.38
2:05
11.81
4:10
9.13
4:10
6.14
8:20
4.38
2:10
11.81
4:20
9.13
4:20
6.14
8:40
4.38
2:15
7.39
4:30
6.97
4:30
6.14
9:00
4.38
2:20
7.39
4:40
6.97
4:40
6.14
9:20
4.38
2:25
7.39
4:50
6.97
4:50
6.14
9:40
4.38
2:30
2.95
5:00
5.37
5:00
9.22
10:00
6.58
2:35
2.95
5:10
5.37
5:10
9.22
10:20
6.58
2:40
2.95
5:20
5.37
5:20
9.22
10:40
6.58
2:45
1.48
5:30
4.29
5:30
9.22
11:00
6.58
2:50
1.48
5:40
4.29
5:40
9.22
11:20
6.58
2:55
1.48
5:50
4.29
5:50
9.22
11:40
6.58
3:00
0.00
6:00
0.00
6:00
6.92
12:00
4.93
6:10
6.92
12:20
4.93
6:20
6.92
12:40
4.93
6:30
6.92
13:00
4.93
6:40
6.92
13:20
4.93
6:50
6.92
13:40
4.93
7:00
6.92
14:00
4.93
7:10
6.92
14:20
4.93
7:20
6.92
14:40
4.93
7:30
6.92
15:00
4.93
7:40
6.92
15:20
4.93
7:50
6.92
15:40
4.93
8:00
6.92
16:00
4.93
8:10
6.92
16:20
4.93
8:20
6.92
16:40
4.93
8:30
6.92
17:00
4.93
8:40
6.92
17:20
4.93
8:50
6.92
17:40
4.93
9:00
6.14
18:00
4.38
9:10
6.14
18:20
4.38
9:20
6.14
18:40
4.38
9:30
6.14
19:00
4.38
9:40
6.14
19:20
4.38
9:50
6.14
19:40
4.38
10:00
6.14
20:00
4.38
10:10
6.14
20:20
4.38
10:20
6.14
20:40
4.38
10:30
6.14
21:00
4.38
10:40
6.14
21:20
4.38
10:50
6.14
21:40
4.38
11:00
5.38
22:00
3.84
11:10
5.38
22:20
3.84
11:20
5.38
22:40
3.84
11:30
5.38
23:00
3.84
11:40
5.38
23:20
3.84
11:50
5.38
23:40
3.84
Rain (mm)
12:00
0.00
0:00
0.00
20.1
26.8
36.9
53.7
76.8
109.6
#6076
02/12/24
1:100 YR - ZONE 3 - DESIGN STORM INTENSITY (mm/hr) - 2050 CLIMATE CHANGE
Table D22
1 HR
2 HR
3 HR
6 HR
12 HR
24 HR
Time
AES
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
Time
AES Rain
0:00
3.77
0:00
2.33
0:00
2.24
0:00
5.18
0:00
6.91
0:00
5.17
0:05
11.31
0:05
2.33
0:05
2.24
0:10
5.18
0:10
6.91
0:20
5.17
0:10
22.62
0:10
6.99
0:10
2.24
0:20
5.18
0:20
6.91
0:40
5.17
0:15
37.70
0:15
6.99
0:15
6.73
0:30
7.40
0:30
6.91
1:00
5.17
0:20
56.54
0:20
13.98
0:20
6.73
0:40
7.40
0:40
6.91
1:20
5.17
0:25
79.16
0:25
13.98
0:25
6.73
0:50
7.40
0:50
6.91
1:40
5.17
0:30
60.31
0:30
23.29
0:30
13.45
1:00
11.10
1:00
8.06
2:00
6.03
0:35
45.23
0:35
23.29
0:35
13.45
1:10
11.10
1:10
8.06
2:20
6.03
0:40
30.16
0:40
34.93
0:40
13.45
1:20
11.10
1:20
8.06
2:40
6.03
0:45
18.85
0:45
34.93
0:45
22.42
1:30
13.32
1:30
8.06
3:00
6.03
0:50
7.53
0:50
48.91
0:50
22.42
1:40
13.32
1:40
8.06
3:20
6.03
0:55
3.77
0:55
48.91
0:55
22.42
1:50
13.32
1:50
8.06
3:40
6.03
1:00
0.00
1:00
37.26
1:00
33.63
2:00
17.02
2:00
10.36
4:00
7.75
1:05
37.26
1:05
33.63
2:10
17.02
2:10
10.36
4:20
7.75
1:10
27.94
1:10
33.63
2:20
17.02
2:20
10.36
4:40
7.75
1:15
27.94
1:15
47.10
2:30
24.41
2:30
10.36
5:00
7.75
1:20
18.63
1:20
47.10
2:40
24.41
2:40
10.36
5:20
7.75
1:25
18.63
1:25
47.10
2:50
24.41
2:50
10.36
5:40
7.75
1:30
11.64
1:30
35.87
3:00
18.50
3:00
9.21
6:00
6.90
1:35
11.64
1:35
35.87
3:10
18.50
3:10
9.21
6:20
6.90
1:40
4.66
1:40
35.87
3:20
18.50
3:20
9.21
6:40
6.90
1:45
4.66
1:45
26.91
3:30
15.54
3:30
9.21
7:00
6.90
1:50
2.33
1:50
26.91
3:40
15.54
3:40
9.21
7:20
6.90
1:55
2.33
1:55
26.91
3:50
15.54
3:50
9.21
7:40
6.90
2:00
0.00
2:00
17.94
4:00
12.58
4:00
9.21
8:00
6.90
2:05
17.94
4:10
12.58
4:10
9.21
8:20
6.90
2:10
17.94
4:20
12.58
4:20
9.21
8:40
6.90
2:15
11.21
4:30
9.62
4:30
9.21
9:00
6.90
2:20
11.21
4:40
9.62
4:40
9.21
9:20
6.90
2:25
11.21
4:50
9.62
4:50
9.21
9:40
6.90
2:30
4.48
5:00
7.40
5:00
13.81
10:00
10.33
2:35
4.48
5:10
7.40
5:10
13.81
10:20
10.33
2:40
4.48
5:20
7.40
5:20
13.81
10:40
10.33
2:45
2.24
5:30
5.92
5:30
13.81
11:00
10.33
2:50
2.24
5:40
5.92
5:40
13.81
11:20
10.33
2:55
2.24
5:50
5.92
5:50
13.81
11:40
10.33
3:00
0.00
6:00
0.00
6:00
10.36
12:00
7.75
6:10
10.36
12:20
7.75
6:20
10.36
12:40
7.75
6:30
10.36
13:00
7.75
6:40
10.36
13:20
7.75
6:50
10.36
13:40
7.75
7:00
10.36
14:00
7.75
7:10
10.36
14:20
7.75
7:20
10.36
14:40
7.75
7:30
10.36
15:00
7.75
7:40
10.36
15:20
7.75
7:50
10.36
15:40
7.75
8:00
10.36
16:00
7.75
8:10
10.36
16:20
7.75
8:20
10.36
16:40
7.75
8:30
10.36
17:00
7.75
8:40
10.36
17:20
7.75
8:50
10.36
17:40
7.75
9:00
9.21
18:00
6.90
9:10
9.21
18:20
6.90
9:20
9.21
18:40
6.90
9:30
9.21
19:00
6.90
9:40
9.21
19:20
6.90
9:50
9.21
19:40
6.90
10:00
9.21
20:00
6.90
10:10
9.21
20:20
6.90
10:20
9.21
20:40
6.90
10:30
9.21
21:00
6.90
10:40
9.21
21:20
6.90
10:50
9.21
21:40
6.90
11:00
8.06
22:00
6.03
11:10
8.06
22:20
6.03
11:20
8.06
22:40
6.03
11:30
8.06
23:00
6.03
11:40
8.06
23:20
6.03
11:50
8.06
23:40
6.03
Rain (mm)
12:00
0.00
0:00
0.00
31.4
38.8
56.1
74.0
115.1
172.3
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
6.79
1.39
0:00
4.82
1.01
0:00
3.97
0.88
0:00
2.41
3.37
0:00
2.81
2.21
0:00
1.95
1.45
0:05
7.46
4.18
0:05
5.03
0:05
4.08
0:10
3.51
0:10
2.33
0:20
1.21
0:10
8.39
8.35
0:10
5.27
3.02
0:10
4.20
0:20
3.62
0:20
2.43
0:40
1.26
0:15
9.83 13.92
0:15
5.55
0:15
4.33
2.63
0:30
3.44
3.63
0:30
2.50
1:00
1.79
0:20
12.56 20.88
0:20
5.88
6.05
0:20
4.48
0:40
3.78
0:40
2.52
1:20
2.03
0:25
27.92 29.23
0:25
6.28
0:25
4.64
0:50
3.96
0:50
2.56
1:40
1.94
0:30
27.92 22.27
0:30
6.79 10.08
0:30
4.82
5.26
1:00
5.16
4.38
1:00
3.28
2.63
2:00
2.27
2.04
0:35
12.56 16.70
0:35
7.46
0:35
5.03
1:10
4.56
1:10
2.72
2:20
2.09
0:40
9.83 11.14
0:40
8.39 15.12
0:40
5.27
1:20
4.66
1:20
2.81
2:40
2.08
0:45
8.39
6.96
0:45
9.83
0:45
5.55
8.76
1:30
6.19
4.30
1:30
2.93
3:00
2.04
0:50
7.46
2.78
0:50
12.56 21.17
0:50
5.88
1:40
4.45
1:40
3.09
3:20
2.11
0:55
6.79
1.39
0:55
27.92
0:55
6.28
1:50
4.77
1:50
3.24
3:40
2.33
1:00
0.00
0.00
1:00
27.92 16.13
1:00
6.79 13.15
2:00
7.91
5.27
2:00
4.22
3.34
4:00
2.92
2.40
1:05
12.56
1:05
7.46
2:10
5.96
2:10
3.38
4:20
2.52
1:10
9.83 12.10
1:10
8.39
2:20
6.82
2:20
3.48
4:40
2.70
1:15
8.39
1:15
9.83 18.40
2:30 11.35 15.75
2:30
3.63
5:00
2.98
1:20
7.46
8.06
1:20
12.56
2:40
17.50
2:40
3.96
5:20
3.20
1:25
6.79
1:25
27.92
2:50
17.16
2:50
4.20
5:40
3.33
1:30
6.28
5.04
1:30
27.92 14.02
3:00
8.60 10.56
3:00
3.75
4.31
6:00
2.60
3.87
1:35
5.88
1:35
12.56
3:10
8.23
3:10
4.11
6:20
4.11
1:40
5.55
2.02
1:40
9.83
3:20
6.62
3:20
4.09
6:40
3.93
1:45
5.27
1:45
8.39 10.52
3:30
7.22
6.65
3:30
4.35
7:00
4.65
1:50
5.03
1.01
1:50
7.46
3:40
5.98
3:40
4.79
7:20
6.02
1:55
4.82
1:55
6.79
3:50
5.39
3:50
5.39
7:40
15.45
2:00
0.00
0.00
2:00
6.28
7.01
4:00
5.85
4.88
4:00
3.75
6.15
8:00
2.60
9.32
2:05
5.88
4:10
4.46
4:10
11.97
8:20
5.84
2:10
5.55
4:20
4.12
4:20
16.06
8:40
5.28
2:15
5.27
4.38
4:30
4.47
4.15
4:30
16.23
9:00
4.31
2:20
5.03
4:40
4.00
4:40
11.64
9:20
3.63
2:25
4.82
4:50
3.85
4:50
8.02
9:40
3.53
2:30
4.64
1.75
5:00
3.44
3.66
5:00
5.63
6.36
10:00
3.89
3.23
2:35
4.48
5:10
3.54
5:10
6.01
10:20
3.05
2:40
4.33
5:20
3.45
5:20
5.67
10:40
3.00
2:45
4.20
0.88
5:30
2.75
3.50
5:30
5.10
11:00
2.83
2:50
4.08
5:40
3.40
5:40
4.62
11:20
2.66
2:55
3.97
5:50
3.30
5:50
4.21
11:40
2.47
3:00
0.00
0.00
6:00
0.00
0.00
6:00
4.22
3.88
12:00
2.92
2.42
6:10
3.80
12:20
2.50
6:20
3.74
12:40
2.34
6:30
3.60
13:00
2.42
6:40
3.44
13:20
2.28
6:50
3.30
13:40
2.21
7:00
4.22
3.22
14:00
2.92
2.20
7:10
3.22
14:20
2.17
7:20
3.18
14:40
2.13
7:30
3.08
15:00
2.10
7:40
2.99
15:20
2.07
7:50
2.90
15:40
2.04
8:00
4.22
2.81
16:00
2.92
2.01
8:10
2.69
16:20
1.97
8:20
2.60
16:40
1.94
8:30
2.56
17:00
1.91
8:40
2.55
17:20
1.87
8:50
2.57
17:40
1.84
9:00
3.75
2.61
18:00
2.60
1.80
9:10
2.55
18:20
1.77
9:20
2.46
18:40
1.74
9:30
2.44
19:00
1.71
9:40
2.51
19:20
1.68
9:50
2.48
19:40
1.64
10:00
3.75
2.41
20:00
2.60
1.61
10:10
2.36
20:20
1.58
10:20
2.32
20:40
1.55
10:30
2.30
21:00
1.51
10:40
2.31
21:20
1.48
10:50
2.30
21:40
1.45
11:00
3.28
2.29
22:00
2.27
1.42
11:10
2.27
22:20
1.38
11:20
2.25
22:40
1.35
11:30
2.23
23:00
1.31
11:40
2.22
23:20
1.28
11:50
2.20
23:40
1.25
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
12.2
11.6
17.6
16.8
21.9
21.9
34.40
34.4
46.90
46.9
64.90
64.9
1:2 YR ZONE 3 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
12 HR
24 HR
6 HR
Table D23
1 HR
2 HR
3 HR
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
8.67
1.84
0:00
6.07
1.26
0:00
4.96
1.13
0:00
2.98
4.17
0:00
3.56
2.80
0:00
2.51
1.87
0:05
9.55
5.51
0:05
6.34
0:05
5.10
0:10
4.34
0:10
2.95
0:20
1.56
0:10
10.79 11.02
0:10
6.66
3.78
0:10
5.26
0:20
4.48
0:20
3.08
0:40
1.62
0:15
12.72 18.36
0:15
7.02
0:15
5.43
3.40
0:30
4.25
4.49
0:30
3.17
1:00
2.31
0:20
16.42 27.54
0:20
7.46
7.56
0:20
5.62
0:40
4.67
0:40
3.19
1:20
2.62
0:25
38.00 38.56
0:25
8.00
0:25
5.83
0:50
4.89
0:50
3.24
1:40
2.50
0:30
38.00 29.38
0:30
8.67 12.60
0:30
6.07
6.80
1:00
6.38
5.41
1:00
4.16
3.34
2:00
2.93
2.63
0:35
16.42 22.03
0:35
9.55
0:35
6.34
1:10
5.63
1:10
3.44
2:20
2.70
0:40
12.72 14.69
0:40
10.79 18.90
0:40
6.66
1:20
5.75
1:20
3.56
2:40
2.68
0:45
10.79
9.18
0:45
12.72
0:45
7.02 11.33
1:30
7.65
5.31
1:30
3.72
3:00
2.63
0:50
9.55
3.67
0:50
16.42 26.46
0:50
7.46
1:40
5.50
1:40
3.91
3:20
2.72
0:55
8.67
1.84
0:55
38.00
0:55
8.00
1:50
5.89
1:50
4.10
3:40
3.00
1:00
0.00
0.00
1:00
38.00 20.16
1:00
8.67 16.99
2:00
9.78
6.51
2:00
5.35
4.23
4:00
3.76
3.09
1:05
16.42
1:05
9.55
2:10
7.36
2:10
4.28
4:20
3.25
1:10
12.72 15.12
1:10
10.79
2:20
8.42
2:20
4.40
4:40
3.48
1:15
10.79
1:15
12.72 23.79
2:30 14.03 19.45
2:30
4.60
5:00
3.84
1:20
9.55 10.08
1:20
16.42
2:40
21.62
2:40
5.02
5:20
4.12
1:25
8.67
1:25
38.00
2:50
21.20
2:50
5.32
5:40
4.29
1:30
8.00
6.30
1:30
38.00 18.12
3:00 10.63 13.04
3:00
4.75
5.46
6:00
3.34
4.98
1:35
7.46
1:35
16.42
3:10
10.17
3:10
5.20
6:20
5.30
1:40
7.02
2.52
1:40
12.72
3:20
8.17
3:20
5.18
6:40
5.06
1:45
6.66
1:45
10.79 13.59
3:30
8.93
8.21
3:30
5.50
7:00
5.99
1:50
6.34
1.26
1:50
9.55
3:40
7.39
3:40
6.07
7:20
7.76
1:55
6.07
1:55
8.67
3:50
6.66
3:50
6.83
7:40
19.90
2:00
0.00
0.00
2:00
8.00
9.06
4:00
7.23
6.03
4:00
4.75
7.79
8:00
3.34 12.01
2:05
7.46
4:10
5.51
4:10
15.16
8:20
7.52
2:10
7.02
4:20
5.09
4:20
20.34
8:40
6.80
2:15
6.66
5.66
4:30
5.53
5.12
4:30
20.56
9:00
5.55
2:20
6.34
4:40
4.94
4:40
14.74
9:20
4.68
2:25
6.07
4:50
4.76
4:50
10.16
9:40
4.55
2:30
5.83
2.27
5:00
4.25
4.52
5:00
7.13
8.05
10:00
5.02
4.16
2:35
5.62
5:10
4.37
5:10
7.62
10:20
3.93
2:40
5.43
5:20
4.27
5:20
7.18
10:40
3.87
2:45
5.26
1.13
5:30
3.40
4.32
5:30
6.46
11:00
3.65
2:50
5.10
5:40
4.20
5:40
5.85
11:20
3.42
2:55
4.96
5:50
4.08
5:50
5.33
11:40
3.18
3:00
0.00
0.00
6:00
0.00
0.00
6:00
5.35
4.91
12:00
3.76
3.12
6:10
4.82
12:20
3.22
6:20
4.74
12:40
3.01
6:30
4.56
13:00
3.12
6:40
4.36
13:20
2.94
6:50
4.18
13:40
2.85
7:00
5.35
4.08
14:00
3.76
2.83
7:10
4.08
14:20
2.80
7:20
4.02
14:40
2.75
7:30
3.91
15:00
2.71
7:40
3.79
15:20
2.66
7:50
3.68
15:40
2.63
8:00
5.35
3.56
16:00
3.76
2.58
8:10
3.41
16:20
2.54
8:20
3.30
16:40
2.50
8:30
3.24
17:00
2.46
8:40
3.23
17:20
2.41
8:50
3.25
17:40
2.37
9:00
4.75
3.31
18:00
3.34
2.32
9:10
3.23
18:20
2.29
9:20
3.12
18:40
2.24
9:30
3.09
19:00
2.20
9:40
3.17
19:20
2.16
9:50
3.14
19:40
2.11
10:00
4.75
3.05
20:00
3.34
2.07
10:10
2.99
20:20
2.03
10:20
2.94
20:40
1.99
10:30
2.91
21:00
1.95
10:40
2.92
21:20
1.90
10:50
2.92
21:40
1.86
11:00
4.16
2.90
22:00
2.93
1.82
11:10
2.87
22:20
1.78
11:20
2.85
22:40
1.74
11:30
2.83
23:00
1.69
11:40
2.81
23:20
1.65
11:50
2.79
23:40
1.61
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
16.0
15.3
23.0
21.0
28.3
28.3
42.50
42.5
59.40
59.4
83.60
83.6
1 HR
2 HR
Table D24
3 HR
6 HR
12 HR
24 HR
1:5 YR ZONE 3 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
10.01
2.15
0:00
6.97
1.43
0:00
5.68
1.32
0:00
3.35
4.69
0:00
4.10
3.22
0:00
2.93
2.19
0:05
11.04
6.44
0:05
7.29
0:05
5.84
0:10
4.88
0:10
3.39
0:20
1.82
0:10
12.50 12.89
0:10
7.65
4.30
0:10
6.02
0:20
5.04
0:20
3.55
0:40
1.89
0:15
14.78 21.48
0:15
8.08
0:15
6.22
3.95
0:30
4.78
5.05
0:30
3.65
1:00
2.69
0:20
19.14 32.22
0:20
8.59
8.60
0:20
6.44
0:40
5.25
0:40
3.68
1:20
3.06
0:25
45.07 45.11
0:25
9.22
0:25
6.69
0:50
5.50
0:50
3.73
1:40
2.92
0:30
45.07 34.37
0:30
10.01 14.34
0:30
6.97
7.89
1:00
7.17
6.09
1:00
4.79
3.84
2:00
3.42
3.07
0:35
19.14 25.78
0:35
11.04
0:35
7.29
1:10
6.33
1:10
3.96
2:20
3.15
0:40
14.78 17.18
0:40
12.50 21.51
0:40
7.65
1:20
6.47
1:20
4.10
2:40
3.12
0:45
12.50 10.74
0:45
14.78
0:45
8.08 13.15
1:30
8.60
5.98
1:30
4.28
3:00
3.07
0:50
11.04
4.30
0:50
19.14 30.11
0:50
8.59
1:40
6.19
1:40
4.51
3:20
3.18
0:55
10.01
2.15
0:55
45.07
0:55
9.22
1:50
6.63
1:50
4.72
3:40
3.50
1:00
0.00
0.00
1:00
45.07 22.94
1:00
10.01 19.72
2:00 10.99
7.32
2:00
6.16
4.88
4:00
4.39
3.60
1:05
19.14
1:05
11.04
2:10
8.28
2:10
4.93
4:20
3.79
1:10
14.78 17.21
1:10
12.50
2:20
9.48
2:20
5.07
4:40
4.06
1:15
12.50
1:15
14.78 27.61
2:30 15.77 21.88
2:30
5.29
5:00
4.48
1:20
11.04 11.47
1:20
19.14
2:40
24.31
2:40
5.78
5:20
4.81
1:25
10.01
1:25
45.07
2:50
23.84
2:50
6.13
5:40
5.01
1:30
9.22
7.17
1:30
45.07 21.04
3:00 11.95 14.67
3:00
5.47
6.29
6:00
3.90
5.82
1:35
8.59
1:35
19.14
3:10
11.44
3:10
5.99
6:20
6.18
1:40
8.08
2.87
1:40
14.78
3:20
9.19
3:20
5.96
6:40
5.91
1:45
7.65
1:45
12.50 15.78
3:30 10.04
9.23
3:30
6.34
7:00
7.00
1:50
7.29
1.43
1:50
11.04
3:40
8.31
3:40
6.99
7:20
9.05
1:55
6.97
1:55
10.01
3:50
7.49
3:50
7.86
7:40
23.23
2:00
0.00
0.00
2:00
9.22 10.52
4:00
8.13
6.78
4:00
5.47
8.97
8:00
3.90 14.02
2:05
8.59
4:10
6.20
4:10
17.46
8:20
8.78
2:10
8.08
4:20
5.72
4:20
23.42
8:40
7.94
2:15
7.65
6.58
4:30
6.21
5.76
4:30
23.67
9:00
6.48
2:20
7.29
4:40
5.56
4:40
16.97
9:20
5.47
2:25
6.97
4:50
5.35
4:50
11.70
9:40
5.31
2:30
6.69
2.63
5:00
4.78
5.09
5:00
8.21
9.27
10:00
5.86
4.86
2:35
6.44
5:10
4.91
5:10
8.77
10:20
4.58
2:40
6.22
5:20
4.80
5:20
8.27
10:40
4.52
2:45
6.02
1.32
5:30
3.82
4.86
5:30
7.44
11:00
4.26
2:50
5.84
5:40
4.73
5:40
6.74
11:20
4.00
2:55
5.68
5:50
4.59
5:50
6.14
11:40
3.71
3:00
0.00
0.00
6:00
0.00
0.00
6:00
6.16
5.65
12:00
4.39
3.64
6:10
5.55
12:20
3.76
6:20
5.45
12:40
3.51
6:30
5.25
13:00
3.64
6:40
5.02
13:20
3.43
6:50
4.82
13:40
3.32
7:00
6.16
4.70
14:00
4.39
3.31
7:10
4.70
14:20
3.26
7:20
4.63
14:40
3.21
7:30
4.50
15:00
3.16
7:40
4.37
15:20
3.11
7:50
4.23
15:40
3.07
8:00
6.16
4.10
16:00
4.39
3.02
8:10
3.92
16:20
2.96
8:20
3.80
16:40
2.92
8:30
3.73
17:00
2.87
8:40
3.72
17:20
2.82
8:50
3.74
17:40
2.77
9:00
5.47
3.81
18:00
3.90
2.71
9:10
3.71
18:20
2.67
9:20
3.59
18:40
2.62
9:30
3.56
19:00
2.57
9:40
3.66
19:20
2.52
9:50
3.62
19:40
2.47
10:00
5.47
3.51
20:00
3.90
2.42
10:10
3.45
20:20
2.37
10:20
3.39
20:40
2.33
10:30
3.35
21:00
2.27
10:40
3.37
21:20
2.22
10:50
3.36
21:40
2.17
11:00
4.79
3.33
22:00
3.42
2.13
11:10
3.31
22:20
2.08
11:20
3.28
22:40
2.03
11:30
3.25
23:00
1.97
11:40
3.23
23:20
1.93
11:50
3.21
23:40
1.88
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
18.8
17.9
26.7
23.9
32.9
32.9
47.80
47.8
68.40
68.4
97.60
97.6
12 HR
24 HR
Table D25
1 HR
2 HR
3 HR
6 HR
1:10 YR ZONE 3 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
#6076
02/12/24
Time Chicago
AES
Time Chicago
AES
Time Chicago
AES
Time AES
SCS
Time
AES
SCS
Time
AES
SCS
0:00
14.85
3.31
0:00
10.25
2.05
0:00
8.30
1.97
0:00
4.55
6.38
0:00
6.07
4.77
0:00
4.54
3.39
0:05
16.43
9.94
0:05
10.73
0:05
8.55
0:10
6.63
0:10
5.02
0:20
2.83
0:10
18.66 19.87
0:10
11.28
6.14
0:10
8.82
0:20
6.85
0:20
5.25
0:40
2.93
0:15
22.14 33.12
0:15
11.93
0:15
9.12
5.91
0:30
6.50
6.86
0:30
5.40
1:00
4.18
0:20
28.88 49.68
0:20
12.70 12.28
0:20
9.46
0:40
7.13
0:40
5.44
1:20
4.74
0:25
69.95 69.55
0:25
13.65
0:25
9.83
0:50
7.48
0:50
5.52
1:40
4.52
0:30
69.95 52.99
0:30
14.85 20.46
0:30
10.25 11.82
1:00
9.75
8.28
1:00
7.08
5.68
2:00
5.30
4.77
0:35
28.88 39.74
0:35
16.43
0:35
10.73
1:10
8.61
1:10
5.86
2:20
4.89
0:40
22.14 26.50
0:40
18.66 30.69
0:40
11.28
1:20
8.80
1:20
6.06
2:40
4.85
0:45
18.66 16.56
0:45
22.14
0:45
11.93 19.70
1:30 11.70
8.13
1:30
6.32
3:00
4.75
0:50
16.43
6.62
0:50
28.88 42.97
0:50
12.70
1:40
8.41
1:40
6.66
3:20
4.93
0:55
14.85
3.31
0:55
69.95
0:55
13.65
1:50
9.01
1:50
6.98
3:40
5.43
1:00
0.00
0.00
1:00
69.95 32.74
1:00
14.85 29.55
2:00 14.95
9.96
2:00
9.10
7.21
4:00
6.81
5.59
1:05
28.88
1:05
16.43
2:10
11.26
2:10
7.29
4:20
5.88
1:10
22.14 24.55
1:10
18.66
2:20
12.88
2:20
7.49
4:40
6.29
1:15
18.66
1:15
22.14 41.38
2:30 21.45 29.75
2:30
7.82
5:00
6.95
1:20
16.43 16.37
1:20
28.88
2:40
33.06
2:40
8.55
5:20
7.46
1:25
14.85
1:25
69.95
2:50
32.42
2:50
9.06
5:40
7.78
1:30
13.65 10.23
1:30
69.95 31.52
3:00 16.25 19.95
3:00
8.09
9.29
6:00
6.06
9.02
1:35
12.70
1:35
28.88
3:10
15.56
3:10
8.85
6:20
9.59
1:40
11.93
4.09
1:40
22.14
3:20
12.50
3:20
8.81
6:40
9.17
1:45
11.28
1:45
18.66 23.64
3:30 13.65 12.56
3:30
9.37
7:00
10.86
1:50
10.73
2.05
1:50
16.43
3:40
11.30
3:40
10.33
7:20
14.05
1:55
10.25
1:55
14.85
3:50
10.19
3:50
11.62
7:40
36.04
2:00
0.00
0.00
2:00
13.65 15.76
4:00 11.05
9.22
4:00
8.09 13.25
8:00
6.06 21.74
2:05
12.70
4:10
8.43
4:10
25.81
8:20
13.63
2:10
11.93
4:20
7.78
4:20
34.61
8:40
12.31
2:15
11.28
9.85
4:30
8.45
7.83
4:30
34.99
9:00
10.05
2:20
10.73
4:40
7.56
4:40
25.09
9:20
8.48
2:25
10.25
4:50
7.28
4:50
17.30
9:40
8.24
2:30
9.83
3.94
5:00
6.50
6.92
5:00
12.13 13.71
10:00
9.08
7.54
2:35
9.46
5:10
6.68
5:10
12.96
10:20
7.11
2:40
9.12
5:20
6.52
5:20
12.22
10:40
7.01
2:45
8.82
1.97
5:30
5.20
6.61
5:30
11.00
11:00
6.60
2:50
8.55
5:40
6.43
5:40
9.96
11:20
6.20
2:55
8.30
5:50
6.24
5:50
9.08
11:40
5.76
3:00
0.00
0.00
6:00
0.00
0.00
6:00
9.10
8.35
12:00
6.81
5.65
6:10
8.20
12:20
5.83
6:20
8.06
12:40
5.45
6:30
7.77
13:00
5.65
6:40
7.41
13:20
5.32
6:50
7.12
13:40
5.15
7:00
9.10
6.94
14:00
6.81
5.13
7:10
6.95
14:20
5.06
7:20
6.84
14:40
4.98
7:30
6.65
15:00
4.91
7:40
6.45
15:20
4.83
7:50
6.26
15:40
4.76
8:00
9.10
6.06
16:00
6.81
4.68
8:10
5.80
16:20
4.60
8:20
5.61
16:40
4.52
8:30
5.52
17:00
4.45
8:40
5.49
17:20
4.37
8:50
5.53
17:40
4.30
9:00
8.09
5.63
18:00
6.06
4.21
9:10
5.49
18:20
4.14
9:20
5.31
18:40
4.06
9:30
5.27
19:00
3.98
9:40
5.40
19:20
3.91
9:50
5.34
19:40
3.83
10:00
8.09
5.19
20:00
6.06
3.76
10:10
5.09
20:20
3.67
10:20
5.01
20:40
3.61
10:30
4.96
21:00
3.53
10:40
4.98
21:20
3.45
10:50
4.96
21:40
3.37
11:00
7.08
4.93
22:00
5.30
3.30
11:10
4.89
22:20
3.22
11:20
4.84
22:40
3.14
11:30
4.81
23:00
3.06
11:40
4.78
23:20
2.99
11:50
4.74
23:40
2.91
Rain (mm)
12:00
0.00
0.00
24:00
0.00
0.00
28.5
27.6
40.2
34.1
49.3
49.3
65.00
65.0
101.10 101.1
151.40 151.4
1 HR
2 HR
Table D26
1:100 YR ZONE 3 DESIGN INTENSITY CURRENT/PRE-DEV (mm/hr)
3 HR
6 HR
12 HR
24 HR
#6076
02/12/24
Return Period
Storm Duration
5-min
4.2
6.1
7.3
8.9
10.2
11.4
12.7
3.2
4.4
5.2
6.3
7.1
7.9
8.7
10-min
6.3
9.1
10.9
13.4
15.3
17.3
19.4
4.8
6.6
7.8
9.5
10.7
12.0
13.4
15-min
7.8
11.1
13.4
16.7
19.3
22.1
25.0
5.9
8.0
9.6
11.8
13.5
15.3
17.2
30-min
10.9
15.5
18.9
23.7
27.7
32.1
36.9
8.2
11.2
13.5
16.7
19.3
22.2
25.3
1-hr
15.4
21.2
25.0
30.4
35.1
39.9
45.0 11.6
15.3
17.9
21.5
24.5
27.6
30.9
2-hr
22.7
29.3
33.7
39.7
44.5
49.6
55.1 16.8
21.0
23.9
27.9
30.9
34.1
37.5
6-hr
46.3
59.2
67.1
77.6
85.9
94.4
102.9 34.4
42.5
47.8
54.7
59.8
65.0
70.2
12-hr
63.1
82.9
96.2 114.7 130.4
146.9
164.4 46.9
59.4
68.4
80.7
90.6
101.1
112.2
24-hr
86.5 115.8 136.4 165.8 191.2
218.8
248.9 64.9
83.6
97.6 117.3 133.6
151.4
170.8
Annual
Exceedance
Probability
50%
20%
10%
4%
2%
1%
0.50% 50%
20%
10%
4%
2%
1%
0.50%
Return Period
Storm Duration
5-min
50.7
73.4
88.5 109.5 126.1
142.9
160.8 38.5
53.1
63.3
77.4
88.0
99.0
110.6
10-min
36.8
52.6
63.1
77.6
89.2
101.0
113.6 27.9
38.0
45.1
54.9
62.2
70.0
78.0
15-min
30.6
43.3
51.8
63.5
72.8
82.5
92.7 23.1
31.3
37.0
44.8
50.8
57.1
63.7
30-min
22.2
31.0
36.9
45.0
51.5
58.3
65.5 16.8
22.4
26.3
31.8
35.9
40.3
44.9
1-hr
16.2
22.2
26.3
31.9
36.5
41.2
46.3 12.2
16.0
18.8
22.5
25.4
28.5
31.7
2-hr
11.8
15.9
18.7
22.6
25.8
29.1
32.7
8.8
11.5
13.4
16.0
18.0
20.1
22.4
6-hr
9.8
13.1
15.4
18.5
21.1
23.8
26.7
7.3
9.4
11.0
13.0
14.7
16.4
18.3
12-hr
5.2
6.7
7.8
9.3
10.5
11.9
13.3
3.8
4.8
5.6
6.5
7.3
8.2
9.1
24-hr
3.8
4.8
5.6
6.6
7.5
8.4
9.4
2.8
3.5
4.0
4.6
5.2
5.8
6.4
Annual
Exceedance
Probability
50%
20%
10%
4%
2%
1%
0.50% 50%
20%
10%
4%
2%
1%
0.50%
Zone 3 - AVERAGE RAINFALL
2100 Moderate IDF Curve
Table D27
25yr
50yr
100yr
200yr
100yr
200yr
2yr
5yr
10yr
2yr
5yr
Total Rainfall (mm)
Rainfall Intensity (mm/hr)
Current
25yr
50yr
100yr
200yr
2100 Moderate IDF Curve
Current
100yr
200yr
2yr
25yr
50yr
5yr
10yr
2yr
10yr
10yr
25yr
50yr
5yr
#6076
02/12/24
Schedule B | Design Criteria
Page 45
D6.3
Presentation of Modelling Results
The Owner's Engineer shall submit a report including the following information:
a) Description of the Development area, the watershed, existing and
proposed land uses for the area with comments on conformity to
applicable master drainage and neighbourhood servicing plans and any
proposed changes with reasons for change.
b) Drainage map showing the catchment and sub-catchment boundaries,
slopes, land uses and soil conditions.
c) Layout plans and tables of the Development area drainage characteristics
for existing and future land use conditions;
d) Brief description of the modeling approach and the selected modeling
program including the name and version of modeling program.
e) Brief description of modeled catchment and drainage system parameters,
design storms and related modeling parameters.
f)
Layout schematic diagrams and data tables of the catchment and
drainage system characteristics as modeled for the study area.
g) Description of modeling results, limitations, conclusions and
recommendations including any significant changes to previous drainage
plans for the area.
h) Properly labeled computer model element layout plan together with input
and output printouts and computer files.
D7
STORMWATER CONVEYANCE
D7.1
Minor and Major Systems
A minor drainage system shall be provided which may include pipes, ditches,
culverts, channels, infiltration systems, and flow control facilities and shall be
designed to collect and carry the runoff from frequent storm events specified in
Section D3.
A major drainage system shall be provided which may include surface flood
paths, ditches, roadways, pipes, watercourses, and flow control facilities and shall
be designed to ensure public safety and protection against any property damage
under the runoff specified in Section D3 to the satisfaction of the Municipal
Engineer. Parts of the major flow route not within dedicated roads or other
municipally owned land shall be protected by rights-of-way as required by the
Municipal Engineer and clearly identified in the stormwater management plan.
If surface flow is not feasible, the piped system shall be sized to accommodate
the major flow and attention must be given to ensuring inlets cannot be blocked or
restricted.
Surcharging at major flow inlets is acceptable provided the headwater profile
meets the criteria with respect to the Minimum Building Elevation (MBE).
Adequate erosion protection shall be provided at the inlet where surcharging is
proposed.
Schedule B | Design Criteria
Page 46
D7.2
Pipelines
a) Pipe Diameter
Storm sewer capacity shall be calculated using the Manning Formula
under free flow (non-surcharged) conditions.
A R0.667 S0.5
Q
=
n
Where
Q
=
flow capacity (m3/s)
A
=
cross sectional area (m2)
R
=
hydraulic radius (m)
S
=
slope of hydraulic grade line (m/m)
n
=
roughness coefficient
0.013 for PVC, asbestos cement,
clay and concrete pipe
0.024 for corrugated metal pipe
(CMP)
Downsizing of storm sewers shall not be accepted for sizes 600 mm
diameter or less, unless accepted by the Municipal Engineer.
The minimum diameter of storm sewers shall be 250 mm except at a
terminal section with no catchbasin connections where the diameter may
be reduced to 200 mm.
b) Velocity and Grade
The minimum velocity for pipes flowing full or half full shall be 0.75 m/s.
If the design velocity exceeds 2.50 m/s or supercritical flow occurs, the
design shall provide for the structural stability and durability of the pipe
and manhole(s).
Anchor blocks shall be provided in accordance with MMCD Standard
Detail Drawing G8 for grades of 15% or steeper.
Where drainage discharge enters a natural watercourse, adequate riprap
protection shall be provided and the maximum velocity limited to 1 m/s.
c) Depth
Minimum depth of cover shall be 1 m for storm sewers up to 600 mm
diameter. For larger sewers, or for less cover, the cover design shall be
certified by the Owner's Engineer.
Depth of storm sewers shall be adequate to serve properties on both
sides of the road and shall allow for future extensions to service all
upstream tributary lands for ultimate Development but shall not be deeper
than 4.5 m unless approved by the Municipal Engineer.
Where it is not feasible to service the property(s) on the low side of the
road with a gravity connection, a rear yard storm sewer shall be provided.
Schedule B | Design Criteria
Page 47
All storm sewer systems shall be designed for closed joint construction
unless otherwise approved by the Municipal Engineer.
d) Sewer Location
Sewers and manholes shall be offset from the vehicular wheel paths
wherever possible. Manhole(s) will not be accepted within the curb
alignment.
Where it is not technically possible to locate a storm sewer within the
dedicated road, a statutory right-of-way shall be provided with a minimum
width equal to twice the depth of the pipe from finished grade to the
crown. Where there is more than one pipe in the right-of-way, the
minimum width shall be based on the deepest pipe and the required
separation between pipes shall be taken into account. Separation
between sewer pipes, sanitary or storm, shall be 1.2 m. Separation
between water and storm sewer pipes shall be 3 m unless otherwise
approved by the Regional Public Health Engineer of the Health Authority.
The width of right-of-way shall be sufficient to permit excavation in
accordance with WorkSafeBC requirements.
The minimum width of right-of-way and easements shall be for:
-
one sewer only - 4.5 m
-
two or more utilities - 6 m
The above right-of-way widths may be increased dependent on the depth
of utility and will consider topography and soils conditions, at the
discretion of the Municipal Engineer.
The Municipal Engineer may require the Owner to register a covenant in
favour of the Municipality on a Parcel over which a right-of-way is required
and on a Parcel abutting a right-of-way. The covenant shall specify that
the foundation of any wall abutting the right-of-way shall be at an elevation
no higher than the invert of the lowest utility.
If a manhole, valve chamber, or other appurtenance is located within a
right-of-way, a maintenance access right-of-way, of a width and on an
alignment acceptable to the Municipal Engineer, shall be provided directly
from an existing municipal road. The maintenance access shall be
constructed to provide access in all weathers on a base adequate to
support a 9 T vehicle loading in accordance with Supplementary Detail
Drawing TLG 03.
Rights-of-way shall be entirely on one side of the boundary between
Parcels.
Schedule B | Design Criteria
Page 48
D7.3
Manholes and Cleanouts
a) Manhole Locations
Manholes shall be located at:
-
intersecting sewers except 100 mm and 150 mm services and
catchbasin connections
-
changes in grade
-
changes in pipe size
-
every 150 m for pipes less than 900 mm diameter
-
every 200 m for pipes 900 mm diameter and larger
-
changes in direction
-
downstream end of curvilinear sewers
-
upstream end of all sewers, except temporarily in accordance with
D7.3 c)
b) Manhole Design
-
The obvert of the downstream pipe shall be no higher than that of
an upstream pipe.
-
Inlet sewers, and any service connections, catchbasin and lawn
basin leads required, or permitted, to connect directly to manholes,
shall enter at the bottom of the manhole except that drop manholes
may be used where inlet sewers, connections or leads cannot be
steepened or site conditions prevent excavation to the base of an
existing manhole. Drops shall be in accordance with MMCD
Standard Detail Drawing S3. Connections shall not be in an
adverse direction to the outlet flow. For drops in pipes 600 mm
diameter and larger, hydraulic conditions must be reviewed by the
Owner's Engineer.
-
Hydraulic losses shall be calculated for manholes within which
there is a significant change of pipeline grade or alignment, or that
have more than one upstream sewer connected. Invert drops are
not required where there is no change of direction or grade. A
change of direction up to 45º shall have a minimum 15 mm drop
and a change of direction from 45º to 90º shall have a 30 mm drop.
-
Manhole lids located within the boulevard shall have a 1.5 m x 1.5 m
asphalt apron surround (see TLD 07).
c) Cleanouts
Permanent cleanouts are not permitted, but temporary cleanouts may be
provided at terminal sections of a sewer if:
-
future extension of the main is proposed or anticipated
-
the length of sewer to the downstream manhole does not exceed
45 m
-
the depth of the pipe does not exceed 2 m at the terminal point
D7.4
Catchbasins
Catchbasins shall be provided at regular intervals based on the maximum
drainage area noted in this section, along roadways and at:
-
low points
Schedule B | Design Criteria
Page 49
-
the upstream end of, but not within or in front of, curb returns, cross walks
and wheel chair ramps
Sufficient inlet capacity shall be provided to divert the entire minor flow into the
underground pipe system. Where a surface major flow route is not provided,
catchbasins shall be designed to intercept the 2100 Climate Change 100 year
runoff flowing onto the road from surrounding property.
Combination side and gutter entry catchbasins shall be used:
-
on arterial and collector roads
-
where the gutter entry capacity is reduced below that of a Dobney B-23
gutter grate to accommodate bicycle traffic
-
where the major flow route is to be directed into the pipe system
-
at corners, intersections and ends of cul-de-sac on any downhill grade of
5% or greater
The spacing of the catchbasins shall be based on hydraulic requirements. The
capacity of a single catchbasin may be calculated by the orifice equation, but only
the gutter opening shall be taken into account in combination catchbasins:
Q
=
0.67 C A (2 g h )0.5
Where
Q
=
inlet capacity (m3/s)
0.67
=
clogging factor
C
=
orifice coefficient (0.8)
A
=
open area (0.068 m2 for Dobney B-23 grate)
g
=
gravitational acceleration (9.81 m/s2)
h
=
depth of ponding (m)
The spacing shall be established to permit each catchbasin to drain a maximum
area of 500 m2 on road grades up to 5% and 350 m2 on steeper grades.
The minimum size of catchbasin leads is 200 mm for single catchbasins and
250 mm for double catchbasins. Catchbasin leads shall be installed
perpendicular to the storm sewer and road centreline. Double catchbasins shall
each have separate leads connected by a wye. Catchbasin leads shall have a
minimum grade of 1% and a maximum length of 30 m.
Catchbasin leads cannot connect to a manhole unless approved by the Municipal
Engineer.
#6076
02/12/24
Schedule B | Design Criteria
Page 50
D7.5
Service Connections
-
Separate storm service connection shall be provided to every lot within a
Development in accordance with Section 6.4 of the Bylaw except where
the land can drain to an acceptable alternate existing system.
-
When the sewer main replaces an existing ditch, all existing service
connections shall be connected to the proposed main.
-
Except in the turn around area of a cul-de-sac, connections shall be
installed perpendicular to the storm sewer which must be extended if
necessary to accommodate this requirement.
-
Connections shall generally be located in accordance with Supplementary
Detail Drawing TLG 01 but shall, in any case, avoid conflict with all other
municipal and non-municipal utilities and appurtenances and allow the
maximum number of street trees while avoiding driveway locations if
possible.
-
The minimum diameter shall be 150 mm except that 100 mm service
connections are permitted for one and two family residential lots provided
they do not have lawn basins connected to them.
-
Connections to new mains shall be made using wye fittings.
-
Connections to existing mains shall be made using wye saddles unless
otherwise approved by the Municipal Engineer Inserta-tee's may be used
if the connection is more than two pipe sizes smaller than main..
-
A manhole shall be provided on the storm sewer main for all service
connections greater than 250 mm diameter, unless the connection is more
than two pipe sizes smaller than the main.
-
The minimum grade from main to property line shall be 2% for 100 mm
connections and 1.5% for 150 mm. All other sizes shall be based on
minimum velocity of 0.75 m/s.
-
The minimum depth of a service at the property line shall be 1 m and the
maximum shall be 3 m unless otherwise accepted by the Municipal
Engineer.
-
The service connection at the property line shall be above the hydraulic
grade line of the minor flow.
-
Inspection chambers shall be provided for all connections in accordance
with Standard Detail Drawing TLD 09.
D7.6
Roof Drainage
Provided that a site is graded away from the building towards the street, to a lot
grading swale connected to the municipal drainage system or to an approved on-
site infiltration system, roof drainage shall be discharged to the ground and
dispersed via splash pads at the downspouts but shall not be dispersed towards a
front/rear or side yard less than 5m wide unless approved by the Municipal
Engineer
D7.7
Site Drainage
A lot grading plan shall be provided by the Owner for:
-
a Subdivision other than a Subdivision in a Rural or Agricultural Zone
-
a Development in a Commercial, Industrial, Institutional, Multiple Family or
Comprehensive Development Zone
-
a Development in a Rural, Agricultural or Suburban Residential Zone that
has a total impermeable surface area, including building footprint,
Schedule B | Design Criteria
Page 51
driveway, parking, storage and other paved areas greater than 3,700 m2
or that covers more than 10% of the Parcel area
The ground surface of Developments and lots within Subdivisions shall be graded
in accordance with a lot grading plan accepted by the Municipal Engineer.
Lot grading shall be uniform and consistent except that the area around building
sites shall be graded away from the foundations. The centre of lot elevation, as
established by a registered British Columbia Land Surveyor, shall not exceed the
average elevation of adjacent lots at the adjoining lot lines, unless accepted by
the Municipal Engineer, based on site conditions including topography and
special features.
The minimum slope shall be 2%. Each lot shall be graded to a swale on the lot
with a minimum 600 mm diameter lawn basin at the low end of the swale.
-
Swales shall be a maximum of 150 mm deep, have a minimum
longitudinal grade of 2% and conform to Supplementary Detail Drawing
TLD 04.
-
Lawn basins shall be connected to the municipal drainage system by a
minimum 150 mm pipe without crossing other lots.
Alternatively, each lot may be graded to drain directly, without crossing other
adjacent land, to a Highway or a natural watercourse or, with the approval of the
Municipal Engineer, to a park or conservation area, but no concentrated
discharge shall be permitted onto such areas by way of a swale, ditch, pipe or
other means. Grading towards ravines having a depth greater than 3 m, or
towards slopes having a grade greater than 25% is not permitted unless
approved by the Municipal Engineer.
Where these methods of site drainage are not possible, the Municipal Engineer
may permit a swale and lawn basin on each lot to be connected to a minimum
200 mm pipe crossing adjacent land to connect to the municipal storm sewer
system. Such storm drains shall be the ongoing responsibility of the benefitting
lot Owners and shall be in a 3 m wide easement in a form acceptable to the
Municipal Engineer.
D7.8
Lawn Basins
Lawn basins shall be provided on public and private property where necessary to
prevent ponding except where temporary ponding is intended to occur in
conjunction with an infiltration system approved by the Municipal Engineer. Lawn
basins in gravel areas shall be centered in a 1.5 m x 1.5 m asphalt apron. Lawn
basins shall be offset from storm drains. Lawn basin leads shall be a minimum
150 mm diameter, have a minimum slope of 1% and be connected to the storm
drain with a wye.
An inspection chamber shall be provided at the property line on lawn basin leads
from private properties.
D7.9
French Drains
French drains shall be constructed where required for control of underground
seepage. A soils report will be required to support the design to the acceptance
of the Municipal Engineer.
Schedule B | Design Criteria
Page 52
D7.10
Rockpits and Drywells
Rockpits or drywells shall only be used for minor drainage systems and with the
approval of the Municipal Engineer.
The location and spacing of rockpits or drywells shall be shown on the design
drawings submitted for the Municipal Engineer's approval and a report submitted,
from the Owner's Engineer, confirming that they shall dispose of flows at least
equal to twice the minor system flow calculated in accordance with Schedule B,
Sections D3 and D5.
A major flow system shall be provided in accordance with Schedule B, Section
D7.1.
D7.11
Ditches
Ditches are not acceptable for permanent servicing of Developments in Service
Level Areas 1 and 2.
Ditches adjacent to roadways shall have:
-
maximum depth
1 m*
* unless otherwise approved
by the Municipal Engineer
-
minimum bottom width
0.5 m
-
maximum side slope
1.5(H):1(V)
-
minimum grade
0.5%
-
maximum velocity (unlined ditch)
1 m/s
Where soil conditions are suitable, or where erosion protection is provided, higher
velocities may be permitted. If grades are excessive, erosion control structures or
ditch enclosure may be required.
The minimum right-of-way width for a ditch shall be 6 m where the ditch crosses
private property. The ditch shall be offset in the right-of-way to permit a 3 m wide
access for maintenance vehicles. The top of the ditch adjacent to a property
boundary, or right-of-way boundary, shall be a minimum 0.5 m away from that
boundary.
D7.12
Roadway Major Drainage
Roadways with barrier curbs and gutters may be designed to convey the major
system flow. Maximum depth of flow shall not exceed 150 mm above the gutter
line. Table D20 shall be used for calculating flow capacities.
Drawings and calculations shall be submitted to verify that:
-
surface flow is maintained within the road right-of-way of the intended
route
-
existing and potential roads and Development in the surrounding area are
not adversely affected
-
the 100 year hydraulic grade line is at least 0.35 m below the lowest MBE
of all existing and potential buildings in the area
Intersections shall be designed to ensure the major flow is directed into, and
contained within, the intended route.
Flow depth not to
Pavement Width = W
exceed 150 mm at gutter
2% Cross Fall
Flow Capacity
Q = A * V
Flow Velocity
V = ( 1 / n ) * ( A / P )^0.667 * ( S / 100 )^0.5
Flow Area
A = 0.15W - 0.005W^2
Wetted Perimeter
P = 0.3 + W
Roughness Coeff
n = 0.013
Road
W = 8.6
W = 11
W = 12.2
W = 15
Grade
A = 0.920
A = 1.045
A = 1.086
A = 1.125
S
V
Q
V
Q
V
Q
V
Q
%
m/s
m3/s
m/s
m3/s
m/s
m3/s
m/s
m3/s
0.50
1.197
1.101
1.111
1.161
1.066
1.158
0.954
1.073
0.60
1.311
1.206
1.218
1.273
1.168
1.268
1.045
1.176
0.70
1.416
1.303
1.315
1.374
1.261
1.369
1.129
1.270
0.80
1.514
1.393
1.406
1.469
1.349
1.465
1.207
1.358
0.90
1.606
1.478
1.491
1.558
1.430
1.553
1.280
1.440
1.00
1.693
1.558
1.572
1.643
1.508
1.638
1.349
1.518
1.10
1.776
1.634
1.649
1.723
1.581
1.717
1.415
1.592
1.20
1.855
1.707
1.722
1.799
1.652
1.794
1.478
1.663
1.30
1.930
1.776
1.792
1.873
1.719
1.867
1.538
1.730
1.40
2.003
1.843
1.860
1.944
1.784
1.937
1.596
1.796
1.50
2.074
1.908
1.925
2.012
1.847
2.006
1.652
1.859
1.60
2.142
1.971
1.988
2.077
1.907
2.071
1.706
1.919
1.70
2.207
2.030
2.049
2.141
1.966
2.135
1.759
1.979
1.80
2.271
2.089
2.109
2.204
2.023
2.197
1.810
2.036
1.90
2.334
2.147
2.167
2.265
2.078
2.257
1.859
2.091
2.00
2.394
2.202
2.223
2.323
2.132
2.315
1.908
2.147
2.10
2.453
2.257
2.278
2.381
2.185
2.373
1.955
2.199
2.20
2.511
2.310
2.331
2.436
2.236
2.428
2.001
2.251
2.30
2.568
2.363
2.384
2.491
2.287
2.484
2.046
2.302
2.40
2.623
2.413
2.435
2.545
2.336
2.537
2.090
2.351
2.50
2.677
2.463
2.485
2.597
2.384
2.589
2.133
2.400
2.60
2.730
2.512
2.534
2.648
2.431
2.640
2.175
2.447
2.70
2.782
2.559
2.583
2.699
2.477
2.690
2.217
2.494
2.80
2.833
2.606
2.630
2.748
2.523
2.740
2.257
2.539
2.90
2.883
2.652
2.677
2.797
2.568
2.789
2.297
2.584
3.00
2.932
2.697
2.722
2.844
2.611
2.836
2.336
2.628
3.10
2.981
2.743
2.767
2.892
2.655
2.883
2.375
2.672
3.20
3.029
2.787
2.812
2.939
2.697
2.929
2.413
2.715
3.30
3.076
2.830
2.855
2.983
2.739
2.975
2.450
2.756
3.40
3.122
2.872
2.898
3.028
2.780
3.019
2.487
2.798
3.50
3.167
2.914
2.941
3.073
2.821
3.064
2.524
2.840
3.60
3.212
2.955
2.982
3.116
2.861
3.107
2.559
2.879
3.70
3.257
2.996
3.023
3.159
2.900
3.149
2.595
2.919
3.80
3.300
3.036
3.064
3.202
2.939
3.192
2.630
2.959
3.90
3.343
3.076
3.104
3.244
2.977
3.233
2.664
2.997
4.00
3.386
3.115
3.144
3.285
3.015
3.274
2.698
3.035
Note: Shaded portion requires special approval.
Road Surface Used for Major Flood Routing
Table D28
Schedule B | Design Criteria
Page 53
#6076
02/12/24
Schedule B | Design Criteria
Page 54
D7.13
Major System Ditches
Ditches designed for major flow routing shall be of sufficient width and depth to
accommodate the design major flow with a minimum grade of 1%. They shall be
located within the road allowance or on a statutory right-of-way in favour of the
Municipality with adequate width for vehicular access to the satisfaction of the
Municipal Engineer.
D7.14
Culverts
Culverts shall be designed to convey and ensure that there is no adverse impact
on adjacent properties from the major flow. The Owner's Engineer shall
determine whether the culvert shall operate under inlet or outlet control at design
conditions.
The minimum diameter of culverts shall be 450 mm under roads and 300 mm
under driveways.
The average water velocity in culverts shall not exceed:
-
1.2 m/s for lengths up to 25 m
-
0.9 m/s for lengths over 25 m
The minimum depth of cover for culverts is 0.375 m, subject to pipe loading
criteria.
Inlet and outlet structures shall be provided for all culverts designed for the major
flow. Considerations for the installation of energy dissipation and erosion control
shall be included in the design.
D7.15
Inlet and Outlet Structures
Circular culverts up to 1200 mm diameter shall have inlet structures in
accordance with MMCD Standard Detail Drawing S13 and outlet structures in
accordance with Supplementary Detail Drawing TLD 03. Concrete block
headwalls in accordance with MMCD Standard Detail Drawing S14 may be used
for culverts up to 750 mm diameter.
Riprap protection and/or energy dissipating structures shall be provided for
erosion control at outlets having discharge velocities in excess of 1 m/s.
Grills and trashracks in accordance with the above drawings shall be provided at
the inlets and outlets of all pipes over 450 mm in diameter except for large culverts
in major watercourses at the discretion of the Municipal Engineer.
Schedule B | Design Criteria
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D8
MUNICIPAL STORMWATER INFILTRATION FACILITIES
Stormwater infiltration facilities shall only be permitted on Highways or other municipal
land in accordance with the requirements of a Neighbourhood Servicing Plan.
D9
MUNICIPAL DETENTION PONDS
Unless already constructed by the Municipality, municipal detention ponds shall be
provided and designed in accordance with a master drainage plan or neighbourhood
servicing plan by the first Owner who undertakes a Development in an area to which the
plan applies.
D9.1
Basin Design
Detention ponds shall temporarily store stormwater resulting from heavy rainfall
and empty between storms at release rates specified in Section D3. Ponds shall
be designed on-line so that low flows are confined to a channel in the bottom of
the pond, but shall not be constructed within a creek set-back area. Ponds
designed in series are space inefficient for achieving the desired detention and
shall not be used unless alternative layouts are not available.
Storage volumes shall be computed by SWMM or HYMO based programs. The
model shall be run for storms of different durations ranging from 30 minutes to 24
hours to select the critical storage requirement. Ponds should be designed as
'dry' ponds that have the ability to fully drain out after rainfall events, as opposed
to 'wet' ponds that retain a permanent pool volume. The base of the detention
live storage must be designed to be above the seasonal high water table
elevation.
Limiting dimensions:
-
maximum depth of storage (up to1:100 Year)
2.5 m
-
minimum bottom slope
0.5%
-
maximum pond side slopes
4(H):1(V)
-
length to width ratio
between 2:1 and 4:1
-
minimum freeboard above maximum water level
0.5 m
The berm shall be constructed of stable impermeable material such as clay,
compacted glacial till or provided with an impermeable geo-membrane with
permeability coefficient 1 x 10-8 m/s. A cut-off trench shall extend at least 1 m
below original grade. Anti-seepage collars shall be placed around any pipes
crossing though, or under, the berm.
The low flow channel shall follow an irregularly meandering path along one side
of the pond with:
-
a depth of 0.5 m
-
a width of 1 m
-
side slopes of 2(H):1(V)
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Each pond shall have a sediment forebay immediately downstream of the inlet.
The forebay shall consist of a separate cell, formed by an acceptable barrier,
upstream of the low flow channel and be designed to remove sediment for up to a
1:2 year event.
The forebay shall:
-
have a maximum depth of 1.2 m
-
have non-erosive outlet conditions, taking design exit velocities into
account
-
be provided with direct access for appropriate maintenance equipment
-
be landscaped in such a way as to provide adequate shade
-
be designed to provide removal of sediment and contaminants
Where safe to do so, ponds may infiltrate into the subsurface to reduce the
required pond volume and provide groundwater recharge and other benefits.
Infiltration must be in accordance with the requirements of section D10.3.
D9.2
Inlets and Outlets
The outlet control for storage facilities may be designed using the following orifice
and weir equations:
Orifice Equation: Q = C A (2 g H)0.5
Where Q = release rate (m3/s)
C = orifice coefficient (0.62 for sharp or square edge)
A = area of orifice (m2)
G = gravitational acceleration (9.81 m/s2)
H = net head on orifice (m)
Rectangular Weir Equation: Q
=
C L H1.5
Where Q = release rate (m3/s)
C = weir coefficient (from published references)
L = effective length of weir crest (m)
H = net head on weir crest (m)
Multiple outlets or multi-stage outlets may be required to control the rate of
outflow and mimic the pre-development flow of the 1 in 2 year, and 1 in 5 year
return period storm events. Alternatives to orifice outlets may be used if needed,
for example, vortex flow controls. Inlet and outlet structures shall include flow
energy dissipation and erosion control. Safety grillage shall be provided with
maximum bar spacing of 100 mm for inlets in accordance with MMCD Standard
Detail Drawing S13 and 150 mm for outlets larger than 450 mm diameter in
accordance with Supplementary Detail Drawing TLD 03. Outlets with grillage
shall have a hydraulic capacity at least double the theoretical required capacity to
allow for blockages. The velocity through the grate shall not exceed 1 m/s.
Locks for access hatches shall be provided to prevent unauthorized entrance to
the structure.
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D9.3
Overflow
An overflow spillway with capacity to convey at least the 2100 Climate Change
1:100 year flow shall be provided for all storage facilities. The spillway surface
shall be finished with erosion resistant materials. The maximum spillway slope
shall be 4 horizontal to 1 vertical. The design of the spillway and overflow shall
take into account the possibility of blockages in the outlet structure and the
consequences of extreme storm events.
D9.4
Access
A minimum 4 m wide, all-weather vehicle access shall be constructed from a
public road to the inlet, sediment sump, outlet, emergency overflow and other
works requiring maintenance. The maximum grade of the access shall be 8%.
The surface shall be finished with asphalt or concrete, suitable for maintenance
traffic in accordance with Supplemental Detail Drawing TLG 03.
D9.5
Landscaping, Fencing and Signage
A landscaping plan detailing the reinstatement of grass cover or other approved
surface finish shall be provided for all detention ponds. Landscaping shall be
installed in accordance with MMCD specifications, the Supplementary
Specifications, and to the acceptance of the Township.
Detention ponds shall be surrounded by 1 m high black chain link fencing.
Openings, 0.6 m wide, shall be left in the fence for public access. Shrubs shall be
planted along both sides of the fence in 1.5 m wide beds in accordance with the
Accepted Drawings so that the fence shall be covered within five years. Fences
shall be offset 2 m from adjacent trails or service roads and be located at the top
of detention pond bank.
A 0.6 m high, single 2x6 rail fence with 6x6 posts shall be erected 1 m from top of
the banks of the low flow channel. Plantings shall extend at least 1 m on both
sides of the rail fence. The banks of the low flow channel shall be planted with a
combination of riparian plants that are selected for seasonal interest and the
ability to withstand total immersion in water for short periods of time. Planting
shall be supplemented with woody debris, boulders and river rock in the channel
to provide a natural stream appearance.
On the upland area above the High Water Level and adjacent to a residential
development where rear yards back directly onto the pond area and where there
is no trail or service road, provide a mix of trees, shrubs and low grasses.
Signs, as required by the Municipal Engineer, shall be placed at the entry points
to the pond warning of occasional deep water.
D9.6
Operation and Maintenance Manual
Three copies of an operation and maintenance manual shall be submitted when
the facility is completed and transferred to the Municipality and include:
-
record drawings of the completed facility
-
brief description of the facility operation including design flows, design
depths, and schematic diagrams of the inlet and outlet structures,
connections, controls, valves, bypass, overflows, etc.
-
manufacturer's operation, service and repair instructions and parts lists
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-
volume-stage-discharge relationships of all control structures
-
general maintenance requirements and emergency procedures
-
copies of senior government environmental approvals if applicable
D10
ON-SITE INFILTRATION AND DETENTION
On-site requirements may include stormwater storage facilities and infiltration
measures. On-site facilities and measures shall be in accordance with an
applicable Master Drainage Plan, Neighbourhood Servicing Plan, or Stormwater
Management Plan or, if there are no requirements in an applicable plan, in
accordance with this Section.
D10.1
Subdivision
As a condition of Subdivision, the Owner shall register a covenant under Section
219 of the Land Title Act, in a form acceptable to the Municipal Solicitor, to
provide infiltration measures on each lot in a residential subdivision, at the
discretion of the Municipal Engineer, at the time a building is erected and prior to
the issuance of a final acceptance for the lot.
If an existing residence is to be retained on a lot within a Subdivision, at the
discretion of the Municipal Engineer, the infiltration measures shall be provided
on that lot prior to subdivision approval or security shall be taken in accordance
with Section 8 of the Bylaw. The Municipal Engineer may modify the
requirements for on-site infiltration measures around an existing residence
provided they satisfy the intent of Section D10.3.
D10.2
Building Permits
As a condition of the issuance of a building permit for a multiple family,
commercial, industrial or institutional building, the Owner shall provide:
-
on-site stormwater storage unless the Parcel is served by a municipal
detention pond in accordance with a neighbourhood servicing plan or
stormwater management plan; and
-
on-site infiltration measures.
As a condition of the issue of a building permit in a Rural, Agricultural or
Suburban Residential Zone, the Owner shall provide on-site stormwater storage
and infiltration measures if the proposed total impermeable surface area after
Development, including building footprint, driveway, parking, storage and other
impermeable surfaces, exceeds 3,700 m2 or covers more than 10% of the Parcel
area.
Building permits for interior renovations and for additions to existing buildings that
do not increase the total existing floor area by more than 20% of the floor area
existing two years to the date of the application being made shall be exempt from
these requirements.
D10.3
Design of On-site Infiltration Measures
On-site infiltration measures in Residential Zones shall consist of infiltration
facilities and topsoil in accordance with Supplementary Detail Drawings
TLD 12(a), 12(b), and 12(c).
Schedule B | Design Criteria
Page 59
Infiltration facilities required in other Zones shall be designed in accordance with
a neighbourhood servicing plan or storm water management plan. Where the
Municipality has not finalized a plan, infiltration facilities shall be designed such
that for a design storm of 25 mm in 24 hours, post-development infiltration from
the entire Parcel is no less than the infiltration that would have occurred prior to
any building or impermeable surface on the Parcel. Infiltration measures may
include absorbent landscapes, rain gardens and infiltration swales and trenches
designed and constructed in accordance with the Design Guidelines and
Guideline Specifications in the GVRD Stormwater Source Control Guidelines
2012, as amended from time to time. Soil hydraulic conductivity is to be
assessed by a qualified professional on the basis of representative on-site
percolation tests conducted when the water table is at least 1 m below the natural
grade.
For a subdivision creating more than two additional lots or for a building permit for
a site greater than 0.5 ha, the Owner shall submit a report from a qualified
professional stating that the proposed infiltration measures shall not cause or
contribute to slope instability, down slope flooding or, in high water table,
nuisance seepage on other property. The Owner may apply to the Municipal
Engineer for a waiver or reduction in infiltration measure requirements if he or she
can demonstrate that high water table prevents effective infiltration.
D10.4
Design of On-site Storage Facilities
On-site storage may include parking lot storage, detention ponds or swales,
underground storage or other methods approved by the Municipal Engineer.
Release rates shall be in accordance with Schedule B, Section D3 and be
regulated by a standard flow control chamber in accordance with Supplementary
Detail Drawing TLD 01.
Storage volumes shall be calculated using 2100 CLIMATE CHANGE design
storms for the post-development condition and CURRENT design storms for the
pre-development condition. Calculations may be done using the modified rational
method.
The maximum ponding depth in parking lots shall be 100 mm for 1:2 year storm,
150 mm for 1:5 year storm and 200 mm for 1:100 year storm.
D10.5
Responsibility for Operation and Maintenance
The Owner shall register a covenant under Section 219 of the Land Title Act, in a
form acceptable to the Municipal Solicitor, to provide that on-site facilities and
measures required by this Section shall be maintained in operating condition by
the Owner to the satisfaction of the Municipal Engineer and that the Municipal
Engineer has the right to inspect them at any time.
D11
STORMWATER QUALITY CONTROL
A water quality control plan may be required as part of the lot grading plan at the
discretion of the Municipal Engineer where there are reasonable grounds to
anticipate discharge of contaminants to the drainage system.
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Grease, oil and sand interceptors shall be provided in accordance with Langley
Sewerworks Regulation Bylaw 2018 No. 5367, as amended from time to time.
Bioretention or dry swales with underdrain systems or equivalent shall be
provided to treat runoff from all uncovered paved parking areas designed for
parking of ten or more vehicles except where the pavement is designed to be
porous on a granular base.
D12
MINIMUM BUILDING ELEVATION
The minimum building elevation (MBE) is the elevation of the lowest floor slab in
a building or the underside of the floor joists where the lowest floor is constructed
over a crawlspace. The crawlspace is a space between a floor and the
underlying ground having a maximum height of 1.2 m to the underside of the
joists and not used for the storage of goods or equipment damageable by
floodwater.
The MBE shall be established at least 0.6 m above the service connection invert
and a minimum of 0.35 m above the 100 year hydraulic grade line elevation.
The MBE shall be shown on the storm and sanitary plan and lot grading plan and
may not be revised without the approval of the Municipal Engineer.
Schedule B | Design Criteria
Page 61
DESIGN CRITERIA
SECTION R - ROADS
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 62
SECTION R - ROADS
R1
GENERAL
Roads shall be provided, designed and constructed, or improved, in accordance with
appropriate neighbourhood servicing plans and, except as required by the forgoing, in
accordance with the latest edition of the "Geometric Design Guide for Canadian Roads"
published by the Transportation Association of Canada.
Where roads are located on steep slopes, as determined by the Municipal Engineer, the
Owner shall provide a report from a professional engineer, specializing in geotechnical
engineering, on slope stability, surface run off and potential changes to the groundwater
regime together with appropriate recommendations and designs for alleviating any
negative geotechnical or hydro-geotechnical impacts of road construction and for
management of stormwater from uphill slopes.
R2
CLASSIFICATIONS
Roads and bike lanes shall be provided in accordance with the Road Classification and
Right-of-Way and Cross Section Maps adopted by Council. The Owner shall consult the
Municipal Engineer on the correct classification of all roads to be provided or improved
prior to undertaking design. Highway and pavement widths for the appropriate road
classification shall be provided in accordance with Table R1 and the Supplementary
Detail Drawings with adjustments based on traffic volumes, requirement for turn lanes
and predominant type of development as may be required by the Municipal Engineer.
R3
GRADES
Maximum longitudinal grades shall be:
-
local residential rural roads
12%
-
all arterials
6%
-
all other roads and lanes
8%
The minimum longitudinal grade shall be 0.5%.
On steep sites, the Municipal Engineer may consider variations to the above limits.
Under no circumstances shall grades be more than 12%.
The maximum allowable grade at an intersection for a minor road with a 50 km/h design
speed is 3.5%.
Low points in gutter profiles are not permitted within, or in front of, curb returns,
crosswalks or wheel chair ramps.
Schedule B | Design Criteria
Page 63
Table R1
CLASSIFICATION
DESIGN
SPEED
km/h
HIGHWAY
WIDTH
m
PAVEMENT
WIDTH
m
DETAIL
DRAWING
URBAN ROADS
ARTERIAL
6 lane with bike lanes
to 60
37.0
28.4
TLR 01 / UA1-A
6 lane with bike lanes
> 60
38.0
29.6
TLR 01 / UA1-B
4 lane with bike lanes
to 60
30.0
21.4
TLR 02 / UA2-A
4 lane with bike lanes
> 60
31.0
22.4
TLR 02 / UA2-B
4 lane divided
to 60
27.0
18.4
TLR 03 / UA2-C
4 lane divided
> 60
27.0
18.8
TLR 03 / UA2-D
4 lane with wide curb lanes
to 60
29.0
20.4
TLR 04 / UA2-E
2 lane with wide curb lanes
to 60
22.0
13.4
TLR 04 / UA2-F
2 lane with bike lanes
to 60
22.0
14.0
TLR 05 /UA2-G
COLLECTOR
Major Collector Residential
20.0
11.4
TLR 06 / UC1-A
Major Collector with bike lanes
22.0
14.0
TLR 07 / UC1-B
Minor Collector Residential
20.0
11.0
TLR 08 / UC1-C
Major Collector - Ind/Comm
22.0
12.2
TLR 09 / UC1-D
Minor Collector - Ind/Comm
22.0
12.2
TLR 09 / UC1-D
LOCAL
Multifamily Residential
20.0
11.0
TLR 10 / LR1-A
Standard lot residential
20.0
11.0
TLR 10 / LR1-A
Compact lot Res. 2 side pkg
18.5
10.8
TLR 10 / LR1-D
Industrial / Commercial
22.0
12.2
TLR 11 / IND-A
LANES
6.0
5.5
TLR 15
RURAL ROADS
ARTERIAL
4 lane
36.0
22.6
TLR 12 / RA-1
2 lane
> 60
20.0
10.9
TLR 12 / RA2-B
COLLECTOR AND GRID
LOCAL
to 60
20.0
10.3
TLR 10 / RA2-A
LIMITED LOCAL
20.0
7.3
TLR 13 / RL-1
-
Roads shall be Urban in Service Areas 1 and Rural in Service Areas 3
and 4 except that Arterials shall be Urban wherever shown as such on the Road
Classification and Right-of-Way and Cross Section Maps.
-
Pavement width shall be measured from curb face to curb face on urban roads.
-
Bicycle lanes on arterials with design speed > 60 km/h shall be 1.8 m wide.
-
Where bicycle lanes are required on arterials with design speed up to 60 km/h
they shall be a minimum 1.5 m wide.
Schedule B | Design Criteria
Page 64
R4
HIGHWAY CROSS SECTIONS
Maximum side slopes of earth fills or cuts shall be 1.5H : 1V. Flatter slopes shall be used
on unstable ground in accordance with a report from a professional engineer specializing
in geotechnical engineering. Statutory rights-of-way shall be provided by the Owner over
fill slopes on private property extending from the dedicated road to 1 m beyond the toe of
fill.
Boulevards and sidewalks shall have a 2% cross slope from the property line to the curb
unless otherwise approved by the Municipal Engineer.
Pavement cross-slopes shall be 2% with the crown in the centre of the pavement.
Pavement cross slopes on through streets may be reduced to a minimum of 0.5% within
an intersection.
R5
HORIZONTAL AND VERTICAL CURVES
Horizontal and vertical curves shall be governed by the design speed of the road:
-
Locals
50 km/h
-
Collectors and rural arterials 50 to 60 km/h
-
Arterials
60 to 80 km/h
For cul-de sac, P-Loops and crescent road a 30 km/h design may be used at the
discretion of the Municipal Engineer.
The maximum allowable superelevation on arterial and collector roads shall be 4%. No
superelevation is permitted on local roads.
There shall be a minimum 20 m tangent between any horizontal curve and an
intersection except that a tee intersection may be permitted to the outside curve of a local
road. There shall be a 20 m tangent separating 'S' curves.
Schedule B | Design Criteria
Page 65
R6
CURB RETURNS AND CORNER CUTS
Curb return radii, in metres, shall be:
INTERSECTION WITH
LOCAL/FRONTAGE
COLLECTOR
ARTERIAL
Lanes
Curb letdown
7
Locals
9
9
Industrial Locals
9
10
Collectors
9
10
10
Curb return radii at midblock corners shall be 3 m within lanes and 9 m within local
streets.
Curb return radii between arterial roads require site specific design taking into account
projected volumes, turning movements, truck traffic, and whether turning lanes are
provided.
On truck routes, as designated in the Township of Langley Highway and Traffic Bylaw
2010 No. 4758, as amended from time to time, the radii shall allow WB 20 vehicles to
make a right turn without crossing out of the nearside lane of the approach road.
The Municipal Engineer may amend these requirements for the better protection of
pedestrians and vehicles.
Curb returns shall be provided on all permitted driveway accesses to arterial roads and
on driveway accesses generating one hundred or more peak hour trips to and from all
other classifications of road.
An intersection with an existing road shall be designed to meet the ultimate classification
of the intersecting road as determined by the Road Classification and Right-of-Way and
Cross Section Maps.
Property corner truncations shall be provided at all street corners to maintain a minimum
4 m distance from curb face to property line. The minimum truncations at street and lane
corners in metres shall be:
CORNER TYPE
CORNER CUT
Arterial and Collector to any Road or Lane
5 x 5
All other road and lane corners
3 x 3
Lane and lane
3 x 3
Roundabouts
6 x 6
Schedule B | Design Criteria
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R7
CUL-DE-SACS, P-LOOPS AND BARELAND STRATA
ROADS
Permanent cul-de-sac or strata road shall not exceed a length of 150 m unless an
emergency access is provided.
Within Service Level Areas 3 or 4, the length of a permanent cul-de-sac without an
emergency access may be increased to a maximum length of 600 m if:
-
the subdivision is constrained by topographic or other physical features
-
the Approving Officer does not require access be provided to land lying beyond or
around the Subdivision
P-loops shall have a maximum street length of 750 m including a maximum distance of
150 m between the intersecting road and the loop road and be provided with an
emergency access.
Within Service Level Areas 3 or 4, the maximum street length of a P-loop may be greater
than 750 m provided it cannot give access to more than 60 lots.
The length of a cul-de-sac, P-loop or bareland strata road shall be measured along its
centre line from the nearest right-of-way boundary of an intersecting Highway having
more than one access. The length of a cul-de-sac shall be measured to the beginning of
the turnaround bulb.
The emergency access required shall directly connect the turnaround of a cul-de-sac or
the loop road of a P-loop to an adjacent Highway having more than one access, or as is
otherwise acceptable to the Municipal Engineer.
Design of cul-de-sac shall be in accordance with Supplementary Detail Drawings TLR 16
to 19 inclusive. Alternatively, the Municipal Engineer may accept a design in accordance
with the "Manual of Geometric Design Standards for Canadian Roads" 1999 published
by the Transportation Association of Canada, but, in any case, the following minimum
radii shall apply to circular turnarounds:
LAND USE
PAVEMENT
RADIUS
m
ROW
RADIUS
m
Residential, Multifamily, Suburban, Rural
11.5
15.5
Commercial and Institutional
14
17
Industrial
15
18.5
Schedule B | Design Criteria
Page 67
R8
TEMPORARY TURNAROUNDS
Where a proposed road, lane or bareland strata road exceeds 50 m in length and is to be
extended in the future, temporary turnarounds shall be provided.
The road or lane shall be terminated with a temporary asphalt turnaround in accordance
with Standard Detail Drawing TLR 18 or 19, or alternative design as permitted in Section
R7, and constructed to the standards set out in this Bylaw except that curbs and gutters
shall be constructed on their permanent alignment across the temporary turn around and
not around its perimeter. A statutory right-of-way granted in favour of the Municipality,
and acceptable to the Municipal Engineer, shall be granted over that part of the
temporary turnaround that is not within the dedicated road including an additional 1 m
beyond the edge of pavement.
No road or lane in the Urban and Special Urban Service Level areas shall be constructed
as a temporary cul-de-sac exceeding a length of 150 m as measured from the nearest
right-of-way boundary of an intersecting Highway having more than one access to the
beginning of the temporary turnaround bulb, unless a temporary or permanent
emergency access is provided.
A road or lane may only be constructed as a temporary cul-de-sac if the abutting Parcel
onto which it may be extended has Development potential in the opinion of the Approving
Officer and in accordance with the Official Community Plan.
R9
EMERGENCY ACCESSES
Emergency accesses shall be provided in accordance with Sections R7 and R8, and the
Municipal Engineer may require the installation of emergency accesses elsewhere in
consultation with the Fire Department.
Permanent emergency accesses in the Urban and Special Urban Service Level areas
shall be a maximum length of 100 m and designed in accordance with Standard Detail
Drawing TLR 20. Permanent emergency accesses shall be straight, unless approved by
the Municipal Engineer.
Permanent emergency accesses in the Suburban and Rural Service Level areas and all
temporary emergency accesses shall be surfaced with 4 m width of asphalt. Fencing
shall not be required, but vehicle barriers shall be provided in Suburban and Rural
Service Level areas in accordance with Standard Detail Drawing TLR 22.
A curb letdown shall be provided where an emergency access joins a road with a barrier
curb.
Schedule B | Design Criteria
Page 68
R10
INTERSECTIONS
The Owner's Engineer shall assess:
-
approach grades and grade transitions
-
crossing sight distance
-
design speeds
-
intersection cross-slopes
-
curb returns
-
intersection alignment
Intersections shall be at right angles, except that with the approval of the Municipal
Engineer, a maximum variation of 15º may be permitted.
The minimum centreline distance between intersections along a road shall be governed
by the classifications of that road and of the intersecting roads. The following table
shows the minimum permissible distance of an intersection of any road from an
intersection of a road with the classification shown in the first column along a road with
the classification shown in the other columns.
INTERSECTING
ROAD
DISTANCE (in m) BETWEEN INTERSECTIONS ALONG:
Arterial
Major
Collector
Minor
Collector
Local
Lane
Arterial
400
Major Collector
200
200
Minor Collector
200
150
100
Local
X
50
50
50
Lane
X
*
*
25
*
X indicates that intersections are not permitted.
* Intersection of lanes with collectors or with other lanes shall only be permitted with the
approval of the Municipal Engineer.
R11
INTERSECTION ISLANDS
Intersection islands shall be provided at intersections of Arterial/Arterial and
Arterial/Major Collector roadways, at the discretion of the Municipal Engineer. Corner cut
requirements to be based on vehicle turning template design for WB-19 design vehicle.
R12
HALF ROADS
Half roads shall be provided in accordance with Supplementary Detail Drawing TLR 14.
The Owner's Engineer shall complete the design for the full width road and show on the
design drawings the portion that is to be completed by others in the future on the abutting
land and any temporary features necessary for the half road including provisions for
structural support, drainage and grade transition on the opposite side.
Schedule B | Design Criteria
Page 69
R13
EXISTING ROADS
Where existing pavement, curbs, gutters, sidewalks and boulevards adjacent to a
Subdivision or Development do not meet the Bylaw standards for horizontal or vertical
alignment, cross section or pavement design, the Municipal Engineer may require their
replacement to the Bylaw standard. Where replacement is not required, defects must be
corrected up to the centre line of the road.
A cross fall of between 2% and 5% shall be provided from the edge of existing pavement
to a new gutter. An asphalt taper transition shall be provided between new and existing
cross sections. Where traffic flow is toward a decreasing pavement width, the taper shall
be 15:1 minimum and, in the opposite direction, 5:1 minimum.
R14
LANES
Lanes shall run in a straight line between streets without any change of alignment unless
otherwise approved by the Municipal Engineer. A dead end lane longer than 50 m shall
have a hammerhead turnaround.
A lane shall not connect to a collector road within 25 m of the nearest right-of-way
boundary of an intersecting Highway.
R15
ROAD BASE AND PAVEMENT DESIGN
The structural design of the road pavement shall be adequate for an expected road life of
20 years under the expected traffic conditions for the class of road.
a) Existing Road Upgrading
Road construction and asphalt overlay design shall be based on the analysis of
the results of the Benkelman Beam tests and test holes carried out on the existing
road which is to be upgraded, or by the CBR asphalt pavement design method.
b) New Road Construction
The design of new roads shall be based on the results of the analysis of materials
from test holes dug on the proposed road site at representative intervals, or by
the CBR asphalt pavement design method.
Test holes and samples shall be undertaken by a qualified soils test company and
all reports shall be signed and sealed by a qualified professional engineer
specializing in geotechnical engineering.
The Benkelman Beam method shall be used on the granular base of all new road
construction and, the Maximum Seasonally Adjusted Design Deflections (mean
plus two standard deviations) shall be as follows:
Schedule B | Design Criteria
Page 70
Classification
Min
Sub-base
mm
Min
Base
mm
Min Asphalt mm
Max Seasonally Adjusted
Design Deflection (mm)
Base
Surface
Base
Pavement
All Arterial and
Industrial Collector
300
100
85
40
1.75
1.00
Other Collector
300
100
50
40
2.20
1.20
Urban Local
200
100
50
35
2.60
1.50
Industrial Local
300
100
50
35
1.75
1.00
Lane
200
100
50
35
3.10
1.50
Rural Local
200
100
75
-
3.40
1.50
Emergency Access
200
100
65
3.1
1.5
Note 1: Recommended sub-base and base thicknesses are minimum requirements. Site
conditions may dictate greater thicknesses of granular material to meet design
deflection requirements.
Note 2: Where rebound readings are greater than the design reading for the base course, the
subgrade should be investigated for potential weakened areas.
Note 3: The standard pavement material is hot mixed, machine laid, asphaltic concrete in
accordance with MMCD Specifications.
Driveways with curb returns shall be constructed and paved in accordance with the
requirements for the adjoining road.
R16
PAVING PROCEDURE
The paving of all roads with curb and gutter shall be in 2 lifts with thicknesses as shown
in Section R15.
The final lift shall be laid prior to one year from the completion inspection or at such time
that all construction in the Development is substantially complete and all foreseeable
utility construction and service connections are complete.
Asphalt deflectors may be required by the Municipal Engineer to direct road surface
runoff into catchbasins until the final lift is laid.
Pavement construction or reconstruction at the intersection of an existing road of equal
or lesser classification shall extend past the curb return onto the existing road. At an
intersection with a higher classification road, the joint shall be at the edge of its
pavement. The final location of the joint shall be approved by the Municipal Engineer.
The tie-in to existing pavement shall be with a milled butt joint.
Half roads shall not receive final lift of asphalt pavement until such time as the second
half is completed or as directed by the Municipal Engineer. In lieu of construction, the
Owner shall deposit with the Municipality, the secured amount for the final lift of asphalt
based upon the estimated cost of construction, accepted by the Municipal Engineer, plus
20% contingency.
Schedule B | Design Criteria
Page 71
R17
DRIVEWAYS
All proposed driveway locations shall be shown on the design drawings.
R17.1
Access to Urban Arterial and Collector Roads
Driveway access shall not be permitted to urban arterial roads unless there is no
practical alternative.
Any driveway access permitted to urban arterial roads shall be right-in and
right-out only, unless approved by the Municipal Engineer.
The Municipal Engineer may require deceleration and acceleration lanes for
access off arterial roads for safety reasons and to minimize disruption to traffic
flows.
The Municipal Engineer may restrict driveway access onto major collector roads
based on site specific review of the Development application including, but not
limited to, the number of existing driveways, land uses in the area and forecast
traffic volumes.
R17.2
Number of Driveways
Only one driveway shall be provided for each one or two family urban residential
lot. For other Zones the Municipal Engineer may consider more are necessary
due to physical constraints between different parts of a lot or for the safe
movement of vehicles.
R17.3
Driveway Location and Width
The driveway to a lot abutting more than one road, each having a different
classification, shall access the road of the lower classification unless the
Municipal Engineer considers that to be inappropriate considering the expected
nature and volume of traffic and the predominant land use accessed by the lower
classification road.
All driveways, except for one directional driveway, shall be at right angles to the
road.
Schedule B | Design Criteria
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All existing driveways not intended to be used upon redevelopment shall be
removed and the boulevard reinstated to the standards required in this Bylaw.
a) Residential Zones
Driveways across boulevards in Residential Compact Lot Zones shall be
maximum 6 m wide. Other driveways shall be a maximum of 7.5 m wide.
Except in a cul-de-sac, driveways shall not be closer than 1.2 m to, nor
further than 1.8 m from, the projection of an internal side lot line across
the boulevard. Except for Residential Compact Lot Zones driveways on
corner lots shall be at least 7.5 m from the side lot line abutting the
intersecting street.
For Residential Compact Lot Zones, driveways on corner lots shall be at
least 6 m from the projected lot lines abutting a local road and/or lane; and
7.5 m from the projected lot lines abutting an arterial and/or collector road.
Adjacent lots shall have alternating driveway locations where this shall
optimize on-street parking.
b) Rural and Suburban Residential Zones
Driveways on corner lots shall be at least 20 m from the side lot line
abutting the intersecting street. Driveways shall have a minimum width of
4 m and a maximum width of 11 m.
c) Other Zones
Driveways to corner lots shall be located no closer than 15 m to the side
lot line abutting the intersecting street or, where this is not practical, at the
far side of the lot from the intersecting street.
The minimum width of a driveway shall be 4.5 m for one way access and
6.5 m for two way access with a maximum width of 11 m. Where there is
more than one driveway access onto a road, the maximum width of the
driveway closest to the intersection shall be 9 m. Industrial and rural
driveways may be wider if necessary for the safe movement of vehicles
and approved by the Municipal Engineer.
Where more than one driveway from a lot is permitted onto the same
street, there shall be a minimum of 9 m separation.
Developments generating more than 200 trips in any hour shall provide a
2 m to 4 m wide median in the driveway.
One directional driveways shall be at a maximum of 70º to the road
centreline.
Schedule B | Design Criteria
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Unobstructed on-site or magazine queuing storage shall be provided behind the
property line without parking stall or other direct vehicular access, and free from
speed bumps, gates or fences, for a distance of:
# of Parking Stalls in the lot
Minimum
Length
0 - 50
6 m
50 - 200
13 m
>200
24 m
Additional queuing length may be required by the Municipal Engineer or as
determined by a traffic impact study.
If the required queuing storage cannot be provided on site, the Municipal
Engineer may require deceleration and queuing storage lanes within, and
additional widening of, the road right-of-way.
R17.4
Driveway Grades
Driveways shall be at a maximum grade of 2% from the property line down to the
back of sidewalk or, where no sidewalk is required, to the edge of pavement. The
first 10 m on the property shall be at a maximum grade of 6% down, and 10% up,
from the property line except that 15% up is acceptable for driveways accessing
local roads in Residential Zones.
R17.5
Driveway Construction
Except where curb returns are required for driveways in accordance with Section
R6, curb letdowns and, where required, sidewalk crossings shall be constructed
in accordance with MMCD Standard Detail Drawing C7 at the time of curb
construction for all lots that shall have driveway access to roads with barrier
curbs.
Driveways crossing rollover curbs shall be constructed with the concrete, base
and sub-base requirements for sidewalks as specified on MMCD Standard Detail
Drawing C3 or with a minimum thickness of 65 mm asphalt on a minimum 100
mm base behind the sidewalk, or where there is no sidewalk, behind the curb.
R17.6
Driveways for Panhandle Lots
Where a lot consists of a narrow access strip from a road with the only feasible
building area being behind another lot, a driveway shall be constructed and paved
with asphalt or concrete on the access strip up to the buildable area after
installation of all municipal services, gas lines and ducts for underground wiring,
where required, to the requirements of the Municipality and to the utility
companies. Where lots share a driveway, easements for the works shall be
provided to the approval of the Municipal Engineer and any conditions of the
utility companies.
Schedule B | Design Criteria
Page 74
R18
SIGNAGE AND PAVEMENT MARKING
Traffic control devices, signs and pavement markings shall be in accordance with the
Transportation Association of Canada 1998 Manual of Uniform Traffic Control Devices
for Canada revised to December 2002 and Bikeway Traffic Control Guidelines for
Canada of December 1998, as amended from time to time.
R19
TRAFFIC IMPACT STUDIES
A traffic impact study in accordance with the Municipality's standard Terms of Reference
shall be provided to the acceptance of the Manager of Engineering if, in the opinion of
the Municipal Engineer, any of the following conditions apply:
a) the Development is adjacent to a roadway or intersection with localized safety or
capacity deficiencies
b) the Development is adjacent to a sensitive neighbourhood including a school or
park
c) the Development is for a commercial or industrial use that may generate traffic
volumes having a significant impact on the adjacent roadway or intersections
d) other specific local traffic problems exist which may affect the ability of the road
system to accommodate the proposed Development
e) railway impacts
R20
CURBS, MEDIANS, SIDEWALKS AND WALKWAYS
R20.1
Curbs and Gutters
Both sides of all full width urban roads and lanes shall be provided with concrete
curbs and gutters.
Curbs shall be:
-
rollover curbs abutting front loaded one and two family residential lots
except that barrier curbs shall be provided at rear loaded one and two
family residential lots and at curb extensions, along major flood routes
in accordance with Section D7.12 and where the longitudinal grade
exceeds 6%
-
barrier curbs on roads in all other areas
-
rollover curbs on all lane
-
narrow gutter pan barrier curbs in accordance with Standard Detail
Drawing TLR 23 with reverse gutter grade along medians
-
barrier curbs fronting Schools and Parks
Wide base curbs shall be provided in accordance with MMCD Standard Detail
Drawing C5 except that narrow base reverse curbs shall be provided along
medians in accordance with MMCD Standard Detail Drawing C4.
Schedule B | Design Criteria
Page 75
Narrow gutter pan curbs side curb inlet catchbasins shall be provided adjacent to
bicycle lanes in accordance with Standard Detail Drawing TLR 23 and TLD 11
respectively.
R20.2
Medians
Medians that are not required to be landscaped shall be leveled and surfaced
with stamped concrete to the requirements of the Municipal Engineer.
R20.3
Wheelchair Ramps
Wheelchair ramps shall be provided at all intersections and at other locations
where deemed appropriate by the Municipal Engineer. Separate ramps with a
minimum width of 1.2 m shall be provided perpendicular to each road at any
intersection with a collector or arterial road. Sidewalks, at least 1.2 m wide, shall
extend around the top of wheelchair ramps at the same grade as the adjacent
sidewalk. In other respects, wheelchair ramps shall be in accordance with MMCD
Standard Detail Drawing C8 or C9.
R20.4
Sidewalks
All urban roads shall have sidewalks and, except as provided in this section, they
shall have locations, widths and cross slopes in accordance with the applicable
Supplementary Detail Drawings and be constructed in accordance with MMCD
Standard Detail Drawings C1, C2 and C3.
Sidewalks shall be provided adjacent to rural arterial and collector roads where
traffic volumes and characteristics are such that the Municipal Engineer deems
them necessary for the safety of pedestrians.
Except in Residential Compact Lot Zones, the Municipal Engineer may permit a
sidewalk on one side only of a local road in a one or two family residential or
suburban area if the road is an extension of a road with only one sidewalk and it
is not a pedestrian link to a trail, park or school.
In Residential Lot Zones, a sidewalk shall be provided on both sides of a cul-de-
sac and around the turn around area. In other Zones a sidewalk shall be
provided on at least one side of a cul-de-sac up to the first property line within the
turnaround area. Where a walkway is to be provided to link the turnaround area
to another street, the sidewalk shall extend to connect to the walkway.
A sidewalk abutting a curb adjacent to a school shall be a minimum of 2 m wide.
Sidewalks shall be continuous around curb returns and for a minimum of 3 m
beyond the curb return into roads not requiring sidewalks. Sidewalks shall
terminate with a ramp to the elevation of the existing ground without encroaching
onto the road pavement or drainage path.
The longitudinal grade of a sidewalk shall be consistent with the grade of the
road.
Where a meandering walkway connects to a concrete sidewalk there shall be
expansion joint material between the walkway and back of sidewalk.
Schedule B | Design Criteria
Page 76
R20.5
Urban Walkways
Unless there are topographical constraints, walkways shall be provided, as
required by the Municipal Engineer, to link the ends of cul-de-sac to other streets
and to provide pedestrian short cuts which reduce the walking distance from any
point to parks, schools, recreational facilities and commercial areas by 400 m or
more.
The Municipal Engineer may require midblock walkways and trails terminating
opposite a "T" intersection to line up with one side of the intersecting street.
Walkways shall be constructed in accordance with Supplementary Detail Drawing
TLR 21.
If the grade exceeds 5%, walkways shall be provided with ramps and landings.
Ramps shall not exceed 8.33% grade and 1.2 m long horizontal landings shall be
provided at maximum 9 m intervals. If the grade exceeds 8.33%, advisory signs
shall be erected at both ends of the walkway. If the grade exceeds 12% steps
shall be provided with railings and a bike channel on each side.
R20.6
Handrails
Handrails shall be provided for walkways where grades exceed 12%, beside
steps and where grade separation exceeds 0.6 m.
Handrails may also be required by the Municipal Engineer along walkways and
sidewalks above major storm sewer outfalls, adjacent to steep side-slopes, or in
any location where required, in his opinion, for the protection of the public.
Handrails shall be constructed in accordance with MMCD Standard Detail
Drawing C14.
R21
COMMUNITY MAILBOXES
The location of community mail boxes and the provision of any optional site
enhancements are subject to the approval of the Municipal Engineer.
Community mail boxes shall not be located on urban arterial roads and shall be at a
minimum distance from a property corner or corner cut of 30 m from an intersection with
an arterial or collector road and 9 m from an intersection with a local road, lane or
driveway with curb returns. They shall be located at least 9 m from the tangent point of a
horizontal curve, 5 m from a fire hydrant and 2 m from any municipal or utility company
service connection, valve, manhole, access or surface appurtenance. They shall not be
located on a vertical curve where sight distance is restricted.
Community mail boxes shall be located on concrete pads at the grade of the sidewalk or
road shoulder.
R22
BUS STOPS
Where Development occurs adjacent to a bus stop, provision shall be made for the bus
stop either as extra Highway right-of-way dedication or registered statutory right-of-way.
A concrete pad shall be provided 9 m long by 3 m wide which width shall include the
Schedule B | Design Criteria
Page 77
width of any sidewalk abutting the curb unless other design is required by the Municipal
Engineer.
R23
VERTICAL CLEARANCES
A vertical clearance of 5.5 m shall be provided to communications and guy wires and
electrical conductors up to 90 kV. Higher voltage conductors shall be subject to approval
of BC Hydro.
R24
NON-MUNICIPAL UTILITIES
Underground wiring ducts and natural gas pipelines shall be located within the road right-
of-way as shown on the applicable Standard Drawings for road cross-sections unless
otherwise approved by the Municipal Engineer. Wiring ducts and gas pipelines shall be
constructed in accordance with the applicable specifications of the respective utility
company and in accordance with applicable Construction Requirements and
specifications concerning environmental protection, traffic regulation, excavation,
trenching, backfilling and surface finish.
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Schedule B | Design Criteria
Page 79
DESIGN CRITERIA
SECTION S - SANITARY
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 80
SECTION S - SANITARY SEWERS
S1
GENERAL
Sewer system extensions shall be designed in accordance with any applicable master
sewerage plan that has been adopted by the Municipality and any applicable
computerized model of the Municipal sanitary sewer system. A system analysis shall be
provided unless otherwise exempted by the Municipal Engineer.
S2
DESIGN FLOWS
Sanitary sewers shall be designed for Peak Wet Weather Flow (PWWF) which is the
sum of the Peak Dry Weather Flow (PDWF) and infiltration flow.
S2.1
Average Daily Dry Weather Flow
Residential Uses
300
l/day/capita
Commercial
40,000 l/day/ha
Industrial
30,000 l/day/ha
Institutional
40,000 l/day/ha
If reliable information indicates that the non-residential flows shall be greater than
the above rates, the higher flows shall be used in the design analysis.
S2.2
Peak Dry Weather Flow
The Peak Dry Weather Flow (PDWF) shall be calculated by the formula:
q P PF
Q
=
86,400
Where
Q
=
Peak Dry Weather Flow (l/s)
q
=
Average Daily Flow (Dry Weather) (l/day/capita)
P
=
Population
PF
=
Harmon Peaking Factor:
14
PF
=
1 +
4 +
0.001 x P
For calculating the peaking factor, non-residential areas shall be converted from
hectares to capita using an equivalent population of 90 persons per ha.
S2.3
Infiltration Rate
An infiltration rate of 0.17 l/s/ha shall be added to the Peak Dry Weather Flow to
determine the Peak Wet Weather Flow.
Schedule B | Design Criteria
Page 81
S3
PIPE FLOW FORMULA
Manning's formula shall be used to size gravity sewers:
A R0.667 S0.5
Q
=
n
Where
Q
=
flow capacity (m3/s)
A
=
cross sectional area (m2)
R
=
hydraulic radius (m)
S
=
slope of hydraulic grade line (m/m)
n
=
roughness coefficient 0.013 for all pipe
Gravity sewers shall be sized such that the depth of Peak Wet Weather Flow shall not
exceed 50% of the pipe diameter of 150 and 200 mm pipe, 60% of 250 mm and 70% of
300 mm and larger pipe.
S4
MINIMUM SEWER DIAMETER
The minimum diameter of gravity sewers shall be 200 mm except the last upstream
section between manholes may be 150 mm if the sewer cannot be extended in the
future.
The diameter of a pipe shall not exceed that of the downstream pipe to which it
connects, without permission of the Municipal Engineer.
S5
VELOCITIES
The minimum flow velocity shall be 0.75 m/s during Peak Dry Weather Flow conditions.
Consideration shall be given to scour problems where design velocities exceed 2.5 m/s.
S6
GRADE
The minimum grade of sewers is governed by the minimum velocity except that the last
section of a 150 mm diameter main that shall not be extended in the future shall have a
minimum grade of 1%.
Anchor blocks shall be provided in accordance with MMCD Standard Detail Drawing G8
for grades of 15% or steeper.
Schedule B | Design Criteria
Page 82
S7
MANHOLES
Manholes shall be provided at:
-
changes in grade
-
changes in direction
-
changes in pipe sizes
-
intersecting sewers
-
terminal sections
-
downstream end of curvilinear sewers
Manholes shall be placed where future extensions are anticipated and shall be spaced
no greater than 150 m apart.
Sanitary manhole rim elevations in off-road areas shall be designed to be:
-
above the adjacent storm manhole rim elevation
-
above the surrounding ground so that infiltration from ponding shall not occur
S8
MANHOLE DESIGN DETAILS
The crownline of the downstream pipe shall be no higher than that of an upstream pipe.
The minimum drop in invert levels across manholes shall be:
-
Straight run
-
no drop required
-
Deflections up to 45°
-
20 mm drop
-
Deflections 45° to 90° -
30 mm drop
Inlet sewers, and service connections required, or permitted, to connect directly to
manholes, shall enter at the bottom of the manhole except that drop manholes may be
used where inlet sewers cannot be steepened or site conditions prevent excavation to
the base of an existing manhole. Drops shall be in accordance with MMCD Standard
Detail Drawing S3 and S4. Connections shall not be in an adverse direction to the outlet
flow. If incoming pipes are 600 mm diameter or larger, hydraulic conditions shall be
reviewed by the Owner's Engineer.
S9
CLEANOUTS
Permanent cleanouts are not permitted, but temporary cleanouts may be provided at
terminal sections of a main only if:
-
future extension of the main is proposed or anticipated
-
the length of sewer to the downstream manhole does not exceed 45 m; and
-
the depth of the pipe does not exceed 2 m at the terminal point
Cleanouts shall not be considered a permanent structure.
Schedule B | Design Criteria
Page 83
S10
DEPTH
Minimum depth of cover shall be 1 m. Depth of sewers shall be adequate to provide
gravity flow service connections to properties on both sides of the road and shall allow
for future extensions to service all upstream tributary lands for ultimate development but
shall not be deeper than 4.5 m unless approved by the Municipal Engineer.
Where it is not feasible to service by gravity connection, a rear yard sewer may be
allowed, upon approval by the Municipal Engineer. See S11 Sewer Location.
S11
SEWER LOCATION
Sanitary sewers shall be located within the road right-of-way under the road asphalt
unless otherwise approved by the Municipal Engineer. Sewers and manholes shall be
offset from the vehicular wheel paths wherever possible.
Where it is not technically possible to locate a sewer within the dedicated road, a
statutory right-of-way shall be provided with a minimum width equal to twice the depth of
the pipe from finished grade to the crown. Where there is more than one pipe in the
right-of-way, the minimum width shall be based on the deepest pipe and the required
separation between pipes shall be taken into account. Separation between two sewer
pipes, sanitary or storm, shall be 1.2 m. Separation between water and sewer pipes
shall be 3 m unless otherwise approved by the Regional Public Health Engineer of the
Health Authority.
The width of right-of-way shall be sufficient to permit excavation in accordance with
WorkSafeBC requirements.
The minimum width of right-of-way and easement shall be for:
-
one sewer only - 4.5 m
-
two or more utilities - 6 m
The above right-of-way widths may be increased dependent on the depth of utility and
will consider topography and soils conditions, at the discretion of the Municipal Engineer.
The Municipal Engineer may require the Owner to register a covenant in favour of the
Municipality on a Parcel over which a right-of-way is required and on a Parcel abutting a
right-of-way. The covenant shall specify that the foundation of any wall abutting the
right-of-way shall be at an elevation no higher than the invert of the lowest utility unless a
geotechnical report is provided and approved by the Municipal Engineer.
If a manhole, valve chamber, or other appurtenance is located within a right-of-way, a
maintenance access right-of-way, of a width and on an alignment acceptable to the
Municipal Engineer, shall be provided directly from an existing Municipal road. The
maintenance access shall be constructed to provide access in all weathers on a base
adequate to support a 9 T vehicle loading in accordance with Supplementary Detail
Drawing TLG 03.
Rights-of-way shall be entirely on one side of the boundary between Parcels.
Schedule B | Design Criteria
Page 84
S12
SERVICE CONNECTIONS
-
Separate sanitary service connection shall be provided to every lot within a
Development in accordance with Section 6.4 of the Bylaw. All services shall
enter the main at a point above the springline in accordance with MMCD
Supplementary Detail Drawing S7.
-
Only one service connection shall be permitted to each Parcel unless otherwise
approved by the Municipal Engineer.
-
Except in the turn around area of a cul-de-sac, connections shall be installed
perpendicular to the sewer which must be extended if necessary to
accommodate this requirement.
-
Connections shall generally be located in accordance with Supplementary Detail
Drawing TLG 01 but shall, in any case, avoid conflict with all other municipal and
non-municipal utilities and appurtenances and allow the maximum number of
street trees while avoiding driveway locations if possible.
-
The minimum diameter for service connections shall be 100 mm for single family
residential connections and 150 mm for all other connections unless otherwise
approved by the Municipal Engineer.
-
Connections to new mains shall be made using wye fittings.
-
Connections to existing mains shall be made using wye saddles unless otherwise
approved by the Municipal Engineer Inserta-tee's may be used if the connection
is more than two pipe sizes smaller than main..
-
A manhole shall be provided on the sewer main for all service connections where
the size of the connection is greater than 250 mm diameter unless the connection
is more than two pipe sizes smaller than the main.
-
The minimum grade from main to property line shall be 2% for 100 mm and 1.5%
for 150 mm connections. All other sizes shall be based on minimum velocity of
0.75 m/s.
-
The minimum depth of a service at the property line shall be 1 m and the
maximum shall be 3 m unless otherwise accepted by the Municipal Engineer.
-
Inspection chambers shall be provided for all connections.
-
Sampling manholes complete with smooth flow channel in accordance with
Supplementary Detail Drawing TLS 01 shall be provided within the Development
site, as close to the property line as possible, for all industrial connections.
Sampling manholes shall be provided for other connections at the discretion of
the Municipal Engineer.
-
Inspection chambers within a driveway must be protected with a concrete box
complete with a steel lid in accordance with Supplementary Detail Drawing TLS
02.
-
Inspection chambers located within a lane must be placed in a right of way on the
private property side of the curb.
Schedule B | Design Criteria
Page 85
S13 SEISMIC PROTECTION
S13.1
Application
The Municipality is divided into areas with estimated seismic movement as
follows;
-
area A - significant seismic movement potential but less than 0.5 m
-
area B - between 0.5 m and 1 m
-
area C - between 1 m and 2 m
The Municipality also has areas of high liquefaction susceptibility.
Figure W1 (Schedule B) is provided for information. A Professional Engineer
experienced in geotechnical engineering and seismic analysis shall assess each
site to determine the seismic movement and liquefaction potential.
Seismic design shall be provided in accordance with this section in area B and
area C and in those parts of area A identified as having High Primary
Liquefaction Potential (whether or not covered in peat).
S13.2
General Requirements
Non-reinforced concrete pipe shall not be used.
The probable differential movement between pipes and manholes and other
structures shall be calculated and accommodated by providing flexible
connections. This shall be achieved by the installation of a mechanical coupling
or flexible joint close to the structure or manhole barrel and another at the edge
of the excavation unless otherwise approved or required by the Municipal
Engineer.
S13.3
Areas B and C Requirements
The following requirements apply within those areas of areas B and C:
-
within 3 m horizontally of a watermain
-
within 100 metres of an environmentally sensitive water body
-
within the recharge area for potable water supply
-
in other locations where the Municipal Engineer considers that the
consequences of failure would be significant
Gravity Sewer Materials and Joints
Sewer mains, connections and fittings shall be designed for ductile
deformation to accommodate permanent ground deformation resulting from
an earthquake.
Only high density polyethylene with heat butt fused joints is approved.
All pipeline, fittings and appurtenances joints shall be restrained to prevent
pullout when subjected to extension forces.
Schedule B | Design Criteria
Page 86
Manhole and Sewer Flotation Control
Manholes and 525 mm diameter and larger gravity sewers located within a
liquefiable layer shall be made to resist flotation under liquefaction conditions
by designing for neutral buoyancy or by being held down.
Unless alternative design is approved or required by the Municipal Engineer,
flotation shall be prevented by providing manhole bases with sufficient
thickness of concrete, and encasing pipes in accordance with MMCD
Standard Detail Drawing G7 in sufficient thickness of concrete, to achieve
neutral buoyancy with pipes half-full.
S13.4
Forcemains
Forcemains shall be designed in accordance with Sections W19 seismic design
requirements for watermains.
S14
SANITARY LIFT STATIONS
The use of sanitary lift stations is to be minimized and alternative collection system
arrangements considered to avoid pump stations where it is practical to do so. Any
proposed use of sanitary lift stations shall receive prior approval from the Municipal
Engineer who, in addition to technical design considerations, shall take into account
impact on neighbours, aesthetics, noise, odour control, security, landscaping
requirements, capital, operation and maintenance costs and energy requirements.
S14.1
Corrosion Protection
In areas identified by the Municipal Engineer, the municipal sanitary collection
system shall be protected from hydrogen sulphide corrosion by avoiding having
any concrete exposed to the air within the system. This includes a minimum of
five (5) manholes and associated pipe sections between them downstream of the
end of a forcemain.
S15
PRIVATE ON-SITE SEWERAGE SYSTEMS
Where private on-site sewerage systems are permitted, the type of system will be in
accordance with Provincial regulations and On-Site System Requirements by Area, see
Figure S1, Schedule B for details.
For a development proposing the use of a septic sewerage system, the Owner shall be
required to submit certification from a Qualified Professional (as defined by the Ministry
of Health's Sewerage Systems Regulation) that the land proposed for development is
suitable and capable of sustaining an onsite sewerage system for the proposed use in
accordance with the Ministry of Health's Sewerage System Regulations.
Registration of a Section 219 restrictive covenant securing the design, construction and
maintenance of the septic system (including primary and reserved field locations) as
required by the Qualified Professional shall also be required for each proposed
development lot.
0 AVE
16 AVE
#1 HWY
248 ST
256 ST
240 ST
216 ST
224 ST
272 ST
40 AVE
#13 HWY
264 ST
200 ST
208 ST
FRASER HWY
64 AVE
72 AVE
24 AVE
96 AVE
56 AVE
#10 HWY
88 AVE
80 AVE
232 ST
8 AVE
60 AVE
RIVER RD
42 AVE
48 AVE
62 AVE
28 AVE
244 ST
OLD YALE RD
ALLARD CRES
86 AVE
58 AVE
29 AVE
ROBERTSON CRES
252 ST
52 AVE
50 AVE
212 ST
204 ST
267 ST
32 AVE
36 AVE
44 AVE
206 ST
275 ST
54 AVE
258 ST
197 ST
100 AVE
202A ST
93 AVE
203 ST
20 AVE
18 AVE
268 ST
209 ST
Golden Ears Bridge
1 AVE
102B AVE
83 AVE
92A AVE
4 AVE
202 ST
6 AVE
82 AVE
86A AVE
38 AVE
43 AVE
210 ST
205 ST
196 ST
198 ST
254 ST
68 AVE
10 AVE
84 AVE
78 AVE
230 ST
GAY ST
207 ST
229 ST
98 AVE
228 ST
34A AVE
36A AVE
12B AVE
21B AVE
250 ST
SMITH CRES
12 AVE
58 CRES
236 ST
87 AVE
5A AVE
58A AVE
211 ST
KING ST
253 ST
197A ST
214 ST
33A AVE
196A ST
231 ST
55A AVE
220 ST
252 ST
208 ST
272 ST
8 AVE
24 AVE
60 AVE
212 ST
212 ST
216 ST
98 AVE
32 AVE
80 AVE
232 ST
64 AVE
232 ST
28 AVE
36 AVE
196 ST
229 ST
6 AVE
210 ST
68 AVE
28 AVE
56 AVE
44 AVE
200 ST
228 ST
224 ST
244 ST
LEGEND
Areas of potential NO3-N contamination concern: Installation of
Nitrogen removal systems required
Areas of potential hydraulic loading concern: Site-specific investigations
and engineering solutions required
Areas of heightened environmental, NO3-N contamination and
hydraulicloading concern: Development requires installation of municipal sewer
or site specific investigation to avoid environmental and groundwater impacts
Urban areas where centralized system is existing or proposed
Areas potentially suitable for installation of On-Site Systems
following site-specific investigation
±
F:\data\landdev\DevEng Maps\Bylaw4861FigureS1\Bylaw4861FigureS1.mxd
On-Site System Requirements by Area
Figure S1
Schedule B | Design Criteria
Page 88
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Schedule B | Design Criteria
Page 89
DESIGN CRITERIA
SECTION W - WATER
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 90
SECTION W - WATERWORKS
W1
GENERAL
Water system extensions shall be designed in accordance with any applicable Master
Waterworks Plan that has been adopted by the Municipality and shall conform to the
requirements of the Provincial Ministry of Health, the Municipal Officer of Health for the
Fraser Health Authority and the Drinking Water Protection Act.
W2
DESIGN FLOWS
W2.1 Residential Demands
Maximum Day Demand
1,350 litres/capita/day
Peak Hour Demand
2,000 litres/capita/day
Design populations for calculating water demand shall be in accordance with the
Municipality's population predictions or with the planned development in the area to be
served, whichever is larger.
W2.2 Industrial, Commercial, and Institutional Demands
In the absence of site specific information, design demands for commercial, industrial
and institutional areas shall be:
Maximum Day Demand
1.1
lps/ha
Peak Hour Demand
2
lps/ha
W2.3 Pipe Flow Formula
Hydraulic design computations shall be based on the Hazen-Williams formula:
C D2.63 S0.54
Q
=
278,780
Where
Q
=
Rate of flow in l/s
C
=
Roughness coefficient (minimum 125)
D
=
Internal pipe diameter in mm
S
=
Slope of hydraulic grade line in m/m
Schedule B | Design Criteria
Page 91
W3
FIRE FLOW DEMANDS
Fire flows shall be based on the publication "Water Supply for Public Fire Protection - A
Guide to Recommended Practice 2020" published by Fire Underwriters Survey except
that the minimum acceptable fire flows shall be:
Zone
Required Fire Flow
Residential Suburban Residential, Multiple Family
90 l/s
Compact Lot Residential
90 l/s
Comprehensive Commercial and Institutional
150 l/s
Industrial
225 l/s
W4
WATER PRESSURES
Maximum allowable pressure
1035 kPa
Minimum pressure at Peak Hour Demand
300 kPa
Minimum pressure anywhere in system during design
150 kPa
Fire Flow and Maximum Day Demand
W5
WATERMAIN SIZE AND LAYOUT
Where it has an up-to-date hydraulic model, the Municipality shall provide information for
design calculations.
Watermain size and layout shall be in accordance with Municipal network requirements
and shall accommodate the ultimate development projections using the Maximum Day
Demand plus Fire Flow or the Peak Hour Demand, whichever has the greater effect on
pressure and flow. Watermains shall be sized to provide flows to all adjacent land to
meet the requirements of existing Development or Development in accordance with the
current Zone or with the land use designated in the Official Community Plan, whichever
is greater. Fire flows for watermain sizing and layout shall not be reduced to take fire
sprinkler systems into account unless the municipal system is inadequate to provide the
Development with the full fire flows required without sprinklers.
Depending on the complexity and extent of the proposed distribution system, the
Municipality may require a hydraulic analysis showing minimum flows, velocities and
pressures.
Pipe velocity shall not exceed 1.5 m/s nor head loss exceed 1 m per 100 m of length
under Peak Hour Demand, nor shall velocity exceed 3.5 m/s under maximum day plus
fire flow conditions.
All watermains shall be looped except with the approval of the Municipal Engineer and
the Regional Public Health Engineer of the Fraser Health Authority. Where
Development is phased, a temporary unlooped watermain up to a maximum length of
200 m may be permitted if the ultimate looping of the main is shown on the key plan for
the Development and is acceptable to the Municipal Engineer.
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Schedule B | Design Criteria
Page 92
The minimum diameters of watermains servicing fire hydrants shall be 150 mm in single
family residential, suburban and rural areas and 200 mm elsewhere.
W6
DEPTH OF COVER
The minimum cover over any watermain shall be 1.2 m with 0.3 m cover over valve
stems.
Where it is impractical to provide the minimum cover required, precast concrete slabs
shall be used to protect the watermain against excessive loading. The design
submission shall show that the slabs are adequate for its intended purposes. Each slab
shall be provided with lifting hooks for subsequent access to the watermain.
Concrete encasement shall not be allowed.
W7
WATERMAIN GRADES
The maximum grade of a watermain shall be 10% unless anchor blocks are provided in
accordance with MMCD Standard Detail Drawing.
W8
CLEARANCE FROM SEWER PIPES
All cross over points with sanitary or storm sewers shall be indicated on both the plan
and profile drawing.
Crossings shall be installed at a minimum angle of 45° between the pipes.
Where the watermain is below, or has less than 0.5 m clearance above any sewer, the
next higher class of pipe shall be used, a full pipe length shall be centered across the
cross-over point and the end joints shall be wrapped with petroleum tape in accordance
with:
-
ANSI/AWWA C214 (factory applied)
-
ANSI/AWWA C209 (field applied)
-
ANSI/AWWA C217 (petroleum tape)
The minimum horizontal clearance between a watermain and a sanitary or storm sewer
shall be 3 m. Where it is impractical to provide this minimum clearance, all affected
joints shall be protected as above.
Schedule B | Design Criteria
Page 93
W9
VALVES
Valves shall be located as follows:
a) Valves shall be provided on all legs of "X" or "T" intersections.
b) No more than 1 hydrant shall be isolated per valve.
c) Valves in industrial areas shall be positioned to isolate no more than 2 service
connections.
d) Valves shall be not more than 200 m apart in one and two family residential
areas or 150 m apart in multiple family and commercial areas. Valve spacing in
other areas shall be to the approval of the Municipal Engineer.
Valves shall be the same diameter as the main up to 300 mm diameter. For larger
mains, valves shall be no more than one diameter size smaller than the main.
All direct bury mainline valves shall be gate valves. Butterfly valves shall only be used in
circumstances approved by the Municipal Engineer where gate valves are not practical.
Valves larger than 400 mm shall be provided with bypass valves and special design may
be required by the Municipal Engineer.
W10 HYDRANTS
Hydrants shall be spaced a maximum of 75 m apart adjacent to compact single family,
multiple family, commercial, industrial and institutional lots, and 150 m apart for all other
residential land uses, with no lot further than 75 m from a hydrant.
Hydrants shall be located at every street intersection except where not required to
maintain the permissible spacing. Where the distance between consecutive street
intersections exceeds the permissible hydrant spacing, additional hydrants shall be
located between intersections.
On arterial roads, hydrants shall be located 1.5 m behind the curb or 0.5 m behind a
sidewalk abutting the curb. On other roads, hydrants shall be located 1.2 m from the
property line unless otherwise approved by the Municipal Engineer. In mid-block
locations, fire hydrants shall be located on line with property corners. Hydrant locations
shall not conflict with existing or proposed street lights, power poles, driveways, kiosks
and other structures.
On arterial roads, a second valve shall be installed on the hydrant lead, near hydrant, in
the boulevard.
On arterial roads with four or more lanes, each side of the road shall be provided with
hydrants at the required spacing.
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Schedule B | Design Criteria
Page 94
W11 AIR VALVES
Combination air valves shall be installed at the high point of all mains of 300 mm
diameter and larger except where the difference in elevation between the high point and
low point is less than 600 mm.
Combination air valves shall be sized as follows:
Watermain Size (diameter)
Valve Size (diameter)
300 mm
25 mm
350 to 600 mm
50 mm
Mains greater than 600 mm
Specific Engineered Design
All air valves shall be installed off the travelled portion of the road in accordance with
Supplemental Detail Drawing TLW 03.
W12 BLOW DOWNS
Blow-downs shall be installed at the lowest point between valves on all watermains of
300 mm and greater except where the difference in elevation between the high point and
low point is less than 600 mm.
W13 BLOW-OFFS
Blow-offs shall be provided at the ends of all watermains installed in accordance with
MMCD Standard Detail Drawing W8 for watermains up to 250 mm and Supplementary
Detail Drawing TLW 02 for 300 mm watermains. Blow-offs for watermains larger than
300 mm shall require special design. A main line gate valve shall be provided for
temporary blow-offs.
All blow-offs shall be located within the pavement area of the road; not in boulevard or
gravel area.
W14 THRUST BLOCKS AND JOINT RESTRAINTS
Concrete thrust blocks shall be provided at valves, bends, tees, wyes, reducers and
plugs. Thrust block sizes shall be indicated on the design drawings. A reverse thrust
block is required on caps and blow-offs.
Joint restraining devices may be used with the approval of the Municipal Engineer in
cases where conventional thrust blocks are not feasible, or to augment conventional
thrust blocks where the possibility of disturbance exists. Design plans shall identify the
type of restraining device to be used and clearly show the minimum required restrained
pipe length.
The Municipal Engineer may limit the size and number of taps permitted on a restrained
length of pipe.
Schedule B | Design Criteria
Page 95
W15 VALVE CHAMBER DRAINAGE
Chambers or manholes containing valves, blow-offs, meters, or other appurtenances
shall not be connected directly to any sewer. Such chambers or manholes shall be
drained to the ground surface where they are not subjected to flooding by surface water;
or to absorption pits, subject to adequate soil conditions.
W16 SERVICE CONNECTIONS
Service connections shall be provided to every lot within a Development in accordance
with Section 6.4 of the Bylaw. The minimum diameter for service connections shall be
25 mm for one and two family residential connections, 37.5 mm for Rowhouse and 150
mm for industrial and commercial connections unless otherwise approved by the
Municipal Engineer. All other service connection sizes to be determined based on
Building Permit requirements and available flows.
A Professional Engineer with experience in sprinkler system design shall size each
water service connection intended to serve fire sprinkler installations. Designs shall
conform to National Fire Protection Association standards. All service connections are to
be split into separate domestic and fire suppression systems on private property. The
domestic system is to be metered as required in the Langley Waterworks Regulation
Bylaw.
Except in the turn around area of a cul-de-sac, connections shall be installed
perpendicular to the watermain which must be extended if necessary to accommodate
this requirement.
Connections shall generally be located in accordance with Supplementary Detail
Drawing TLG 01, but shall, in any case, avoid conflict with all other municipal and non-
municipal utilities and appurtenances and allow the maximum number of street trees
while avoiding driveway locations if possible.
A meter setter and box shall be installed 300 mm inside of the property and clear of the
property line. A water meter shall also be installed in accordance with the Langley
Waterworks Regulation Bylaw.
A corporation stop and a curb stop on the watermain side of the meter box shall be
installed for each 50 mm diameter, or smaller, connection. Connections larger than 50
mm shall be installed with a gate valve flanged to the watermain.
W17 WATERMAIN LOCATION
Watermains shall be located within the road right-of-way under road asphalt unless
otherwise approved by the Municipal Engineer.
Where it is not possible to locate a watermain within the dedicated road, a statutory
right-of-way shall be provided with a minimum width equal to twice the depth of the pipe
from finished grade to the crown. Where there is more than one pipe in the right-of-way,
the minimum width shall be based on the deepest pipe and the required separation
between pipes shall be taken into account.
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Schedule B | Design Criteria
Page 96
The width of right-of-way shall be sufficient to permit excavation in accordance with
WorkSafeBC requirements.
The minimum width of right-of-way and easement shall be for:
-
one main only - 3 m
-
two or more utilities - 6 m
The above right-of-way widths may be increased dependent on the depth of utility and
will consider topography and soils conditions, at the discretion of the Municipal Engineer.
The Municipal Engineer may require the Owner to register a covenant in favour of the
Municipality on a Parcel over which a right-of-way is required and on a Parcel abutting a
right-of-way. The covenant shall specify that the foundation of any wall abutting the
right-of-way shall be at an elevation no higher than the invert of the lowest utility.
If a valve or other appurtenance is located within a right-of-way, a maintenance access
right-of-way, of a width and on an alignment acceptable to the Municipal Engineer, shall
be provided directly from an existing Municipal road. The maintenance access shall be
constructed to provide access in all weathers on a base adequate to support a 9 T
vehicle loading in accordance with Supplementary Detail Drawing TLG 03.
Rights-of-way shall be entirely on one side of the boundary between Parcels.
W18 GEOTECHNICAL INVESTIGATION
A geotechnical investigation of soil corrosiveness shall be undertaken for all proposed
metallic pipes and/or fittings and the Owner's Engineer shall specify any necessary
corrosion protection. Geotechnical soil analysis to be carried out based on the 10-point
method given under Appendix of AWWA C105. Results of all corrosion testing and
subsequent design shall be submitted to the Municipal Engineer for record purposes.
W19 SEISMIC PROTECTION
W19.1
Application
The Municipality is divided into areas with estimated seismic movement as
follows:
-
area A - significant seismic movement potential but less than 0.5 m
-
area B - between 0.5 m and 1 m
-
area C - between 1 m and 2 m
The Municipality also has areas of high liquefaction susceptibility.
Water system installations identified on Figure W1 as having seismic movement
potential, and/or high liquefaction susceptibility, shall follow the requirements of
W19.2 - W19.4 below.
Schedule B | Design Criteria
Page 97
Figure W1 is provided for information. A Professional Engineer experienced in
geotechnical engineering and seismic analysis shall assess each site to
determine the seismic movement and liquefaction potential.
Seismic design shall be provided in accordance with this section in area B and
area C and in those parts of area A identified as having High Primary
Liquefaction Potential (whether or not covered in peat).
W19.2
Pipe Materials and Joints
Watermains and fittings shall be designed for ductile deformation to
accommodate permanent ground deformation resulting from an earthquake.
Only the following pipe materials and types of joint are approved:
a) Restrained joint C909 PVCO pipe
b) Steel with welded joints
c) High Density Polyethylene, if approved by the Municipal Engineer, with
heat fused butt joints
All pipeline, fitting and appurtenance joints shall be restrained to prevent pullout
when subjected to extension forces.
W19.3
Connections to Structures
Connections to structures shall have two flexible or mechanical couplings,
complete with joint restraints, per connection.
W19.4
Service Connections
Service connections shall have an offset or a loop in order to accommodate
movement up to 0.5 m of the pipeline through the soil.
272 St
264 St
256 St
248 St
240 St
232 St
224 St
216 St
208 St
200 St
96 Ave
88 Ave
80 Ave
72 Ave
64 Ave
56 Ave
48 Ave
40 Ave
32 Ave
24 Ave
16 Ave
8 Ave
0 Ave
104 Ave
08-34
08-22
08-27
08-15
08-10
08-03
07-34
07-27
07-22
07-15
07-10
07-03
07-35
07-26
07-23
07-14
08-11
08-02
07-11
08-14
08-26
08-23
09-11
08-35
09-02
07-02
07-25
07-36
07-24
07-13
08-36
09-01
08-01
07-12
07-01
08-25
08-24
08-13
08-12
09-13
09-12
11-31
10-06
11-30
10-19
10-18
10-07
11-19
10-31
11-06
11-07
10-30
11-18
12-18
12-06
12-07
11-08
11-05
11-17
11-20
11-29
10-20
10-29
11-32
10-17
12-17
10-32
12-08
12-05
10-08
10-05
11-16
11-09
11-21
12-04
11-33
11-28
10-09
10-04
10-16
10-21
10-28
11-04
10-33
11-15
11-22
11-10
11-27
11-03
11-34
10-10
10-03
10-27
10-22
10-15
10-34
11-26
11-14
11-11
11-35
11-23
11-02
10-35
10-26
10-23
10-02
10-11
10-14
11-25
09-10
11-12
11-01
11-13
11-36
10-36
10-25
10-24
10-01
10-12
10-13
14-31
14-30
14-19
14-18
14-07
14-06
13-31
11-24
13-19
13-18
13-07
13-06
14-32
14-29
14-20
14-17
14-08
14-05
13-32
13-29
13-20
13-17
13-08
13-05
09-03
13-30
±
F:\data\landdev\DevEng Maps\Bylaw4861FigureW1\Bylaw4861FigureW1.mxd
Oct 2015
Figure W1
Seismic Move
Estimate
A - < 0.5 m
B - 0.5 to 1.0 m
C - 1.0 to 2.0 m
Liquefaction
Susceptibility
Low
Moderate
High (Covered
with Peat)
High
Schedule B | Design Criteria
Page 100
W20 PRIVATE WELLS
W20.1
Regulatory Requirements
A private well intended to supply water for domestic use shall be a drilled well
and shall not serve more than one single family residence and its accessory
buildings on the same lot. Private wells shall be constructed on every proposed
lot in accordance with any groundwater management plan adopted by the
Municipality and with provincial legislation and regulations including, but not
limited to, the Ground Water Protection Regulation (Water Act 2004, as
amended), and Health Hazard Regulation and Sewerage System Regulation
(Public Health Act 2008, as amended). For the latter two regulations, a
certificate is required from a Professional Engineer or Geoscientist or the Fraser
Health Authority stating that the well satisfies the setback requirements specified
in the noted regulations (from potential sources of contamination). Each well
shall be tested to demonstrate that water is potable and safe to drink in
accordance with the Canadian Drinking Water Guidelines (Health Canada) and
Drinking Water Protection Regulation (Drinking Water Protection Act 2001).
The above mentioned acts, regulations and guidelines are regularly updated and
the requirements at the time of application will apply. Also, at the discretion of
the Municipal Engineer, where there are reasonable grounds for concerns with
drinking water supply, additional information will be requested.
W20.2
Well Construction
Wells shall be drilled and constructed by a Qualified Well Driller in accordance
with the Ground Water Protection Regulation (Water Act 2004, as amended).
Any well not meeting municipal requirements or the requirements of the above
noted regulations must be decommissioned according to the provincial standards
and a Certificate of Well Abandonment submitted.
All on-site facilities, services and measures shall be designed and installed in
way not to cause any adverse impacts to the aquifer in use by a municipal well,
its groundwater quality and quantity, and the well itself.
W20.3
Minimum Yield and Quality
A private well shall provide a year round sustained yield of not less than 2,500
litres per day per lot and provide a sustained yield of 9 litres per minute for a
minimum of 4 hours to meet peak hour water demand.
Water shall be tested and proven safe for human consumption by a laboratory
accredited by the B.C. Government for testing of potable water. Water quality
shall be in accordance with the Drinking Water Protection Regulation (Drinking
Water Protection Act 2001, as amended) as though the private drinking water
source is a water supply system regulated by the Drinking Water Protection Act
(2001). Testing shall be undertaken for those aesthetic, microbiological,
chemical and physical parameters as required for domestic water systems by the
Drinking Water Officer or Medical Health Officer (for the Fraser Health Authority)
in accordance with the latest edition of the "Canadian Drinking Water Guidelines
(Health Canada)" and Drinking Water Protection Regulation (Drinking Water
Protection Act 2001, as amended).
Schedule B | Design Criteria
Page 101
W20.4
Well Development, Testing and Certification
Developed wells shall be pumped continuously at a constant rate for a minimum
period of four hours and records made of drawdown and recovery at sufficiently
short intervals to properly record initial rapid drawdown and recovery, final well
yield, recommended pumping rate, and any other aquifer behavior related
observations.
The pumping test rate shall be at or greater than the required 13,000 l/d (9 litres
per minute). Groundwater samples shall be obtained at regular intervals during
the pumping test and analyzed to determine the groundwater quality changes
and the final drinking water quality, and whether the drinking water source is safe
and potable.
A Professional Engineer or Professional Geoscientist with experience in well
construction and testing shall:
-
submit Forms F2 to F5 inclusive showing that each well has been tested
and meets the requirements of Sections W20.1, W20.2, W20.3 and
W20.4
-
identify the water supply aquifer and whether a private well is located
within a municipal well capture zone and extracting water from same
aquifer as the municipal well
-
comment on the likelihood of well interference between the municipal
water supply well and the private wells, and amongst all the wells present
on-site
W20.5
Hydrogeological Evaluation
A detailed hydrogeological evaluation of the proposed Development shall be
provided by a Professional Engineer or Geoscientist specializing in the hydrology
of groundwater when:
-
three or more new wells are proposed in a Development; or
-
the Professional Engineer or Geoscientist reviewing the test results
considers the yield to be marginal or not indicative of the probable yield
during seasons when the water table is lower; or
-
significant cumulative well interference is expected; or
-
water quality is fluctuating or deemed unsafe as at-risk from surrounding
land uses and other hydraulically interconnected surface water features
or shows the water supply source may not meet Health Canada's
Drinking Water Quality Guidelines in the long term; or
-
at the discretion of the Municipal Engineer, where there are reasonable
grounds to anticipate risk to a municipal well and its water supply, aquifer
assessment and well water protection studies, and implementation of
recommendations will be required
The evaluation shall take into account:
-
the impact of each proposed well on surface waters, any natural
environmental features dependent on groundwater, and on the existing or
potential future groundwater supply for neighbouring Parcels
Schedule B | Design Criteria
Page 102
-
the cumulative impacts (drawdown interference, watertable decline, etc.)
both on on-site wells and neighboring wells, and on any municipal wells in
the area; the long term drinking water quality and the potential for
degradation of well water quality from septic systems, agricultural
operations, commercial operations, hydraulic interconnectivity between
surface water features and the source water or from any other potential
sources of contamination present in the surrounding (any sources within
500m of the well should be assessed)
-
the long term impact of the proposed wells and any proposed facility or
service (such as private sewerage system discharges) on the source
aquifer
The evaluation report shall include:
- pump test data and aquifer analysis
- water quality analysis and lab reports
-
a map showing the proposed subdivision layout and well and septic
locations
- local geological and surrounding land use information
- location of surface water and environmental features
- locations of wells and septic systems on neighbouring properties
- any municipal wells and their capture zones present in the area,
hydrogeological sections and logs
- information on surrounding land uses especially those deemed to be
impacting the water supply source of the proposed development
- all analysis and results along with supporting charts, diagrams, lab
reports, etc.
- conclusions and recommendations of the evaluation. The
recommendations made in the report must be consistent with the
observations and results of analysis
The development (whether single well or three or more wells are proposed) shall
not proceed should the water supply source is not demonstrated to be safe and
meeting the drinking water quality and quantity requirements of Section W20.
The Municipal Engineer may also attach conditions to development agreement
and building permits to ensure conformance to protect the municipal well capture
zones and their recharge areas
The Township may request for additional information (additional investigations,
testing and analysis, professional opinion, etc.) when a development or services
being proposed are seen as interfering with municipal water supply wells and
their water quality or quantity.
Schedule B | Design Criteria
Page 103
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Schedule B | Design Criteria
Page 104
DESIGN CRITERIA
SECTION SL - LIGHTING AND TRAFFIC SIGNALS
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 105
SECTION SL - LIGHTING AND TRAFFIC SIGNALS
SL1
GENERAL
Street lighting calculations and plans shall be signed and sealed by a professional
electrical engineer experienced in street light calculations, and in traffic signal design if
required for the Development, referred to as the Design Engineer in this Section of the
Schedule. All street lighting shall be LED.
SL2
LIGHTING LEVELS
The luminance method shall be used for design of roadway lighting. The minimum
average maintained luminance levels, uniformity ratios and veiling luminance ratios shall
be in accordance with the Transportation Association of Canada (TAC) Guide for the
Design of Roadway Lighting (2006), as amended from time to time.
Illumination levels for intersecting roadways shall be the sum of each roadway in
accordance with TAC.
Lighting of half roads where the ultimate pole spacing is one sided shall meet the
ultimate lighting level standards with no additional poles. Lighting for half roads where
staggered or opposite pole spacing shall ultimately be required shall initially meet
residential local road illumination levels and be designed to meet ultimate requirements
with additional poles on the undeveloped side.
The illuminance method shall be used for the design of the lighting of greenway
boulevard trails using 5 lux and a 4:1 uniformity ratio.
Required sign illuminance levels and uniformity ratios shall be in accordance with TAC.
SL3
LIGHT POLE SPACING
Spacing and location of poles shall be governed by road width, road configuration,
intersecting property lines, luminaire photometrics, mounting heights, required lighting
levels and minimum clearances to overhead and underground utilities required by
relevant legislation, codes, WorkSafeBC BC and utility companies.
Poles shall be arranged in a one-side, staggered or opposite spacing based on the road
classifications listed in Table 1. Where overhead lines conflict with streetlight poles,
one-sided spacing may be considered if the required illumination levels and ratios can
be achieved. Alternative pole spacing and poles in road medians shall not be permitted
unless approved by the Municipal Engineer.
Schedule B | Design Criteria
Page 106
Where possible, poles shall be located close to property lines and not in front of the
buildable area of single family residential lots.
Pole locations shall provide for the most street tree planting locations possible by
occupying narrow locations not wide enough for street trees.
Streetlight poles shall be offset as shown on the Road Cross Section Supplementary
Standard Drawings unless otherwise approved by the Municipal Engineer.
Where possible, luminaires shall be installed on all signal poles to maximize intersection
illumination which may require additional street light poles to meet required lighting
levels.
SL4
CIRCUIT SIZE
Service bases shall service a maximum of 25 lights.
Road having staggered lighting shall have separate circuits on either side of road.
SL5 LUMINAIRES, POLES, WATTAGES AND LIGHT SOURCE
Unless otherwise required by the Municipal Engineer, the wattage and mounting height
shall match those of existing lights being retained in the same block if the road
classification and pedestrian conflict level is the same.
The operating voltage for the street lighting system shall be120/240V unless otherwise
approved by the Municipal Engineer.
LED street lighting shall be 3000K Colour Temperature on local residential roads and
4000K on collector and arterial roads, as well as controlled intersections.
All poles shall be equipped with a steel barrier protecting access to wiring and security
hand-hole covers shall be installed.
TABLE 1 - Light Pole Arrangement
Road Classification
Light Pole Arrangement
Arterial
Staggered/Opposite
Collector/Local
Staggered
Local
One Sided
Pedestrian Walkways
One Sided
Schedule B | Design Criteria
Page 107
SL6
DECORATIVE STREET LIGHTING
Decorative street lighting shall be provided in accordance with neighbourhood servicing
plans, and the Municipality shall provide the Owner with generic details of the
requirements and a list of recognized suppliers.
When decorative street lights are installed, the Owner shall supply to the Municipality
one (1) additional spare luminaire and pole for every ten (10) installed.
SL7
LIGHTING CALCULATIONS
The luminance method shall be used for lighting design and calculations shall be in
accordance with the TAC Guide for the Design of Roadway Lighting (2006), as amended
from time to time.
Lighting calculations shall be completed using suitable computer lighting design software
designed to carry out the required calculations by inputting the luminaire manufacturers
IESNA formatted photometrics.
Grid spacing for pedestrian walkway/bikeway lighting calculation shall be maximum 1 m.
For calculations where the roadway surface is asphalt, R3 road surface classification
shall be used and for calculations where the surface is concrete, R1 road surface
classification shall be used.
SL8 TRAFFIC SIGNALS
Prior to starting a traffic signal design, the Owners Engineer shall contact the
Municipality to confirm specific requirements of the signal, timing and coordination plans,
operational requirements, emergency vehicle pre-emption and other issues or concerns.
Unless otherwise directed by the Municipal Engineer; phase numbering shall be as
follows:
Phase 2 = Northbound
Phase 4 = Eastbound
Phase 6 = Southbound
Phase 8 = Westbound
Signal timing to comply with Safer City Traffic Signal Timing Standard Practices Review
March 2008.
Traffic signals shall be designed in accordance with Sections 402.6 of the Ministry of
Transportation Electrical and Traffic Engineering Manual except that NEMA phase
designations shall be used.
Traffic signal design shall also conform to the British Columbia Motor Vehicle Act and
the Manual of Uniform Traffic Control Devices for Canada 2008 Update.
Schedule B | Design Criteria
Page 108
Traffic signal design drawings and timing/coordination plans shall be provided by the
Owner and prepared by a professional engineer experienced in such work. Municipal
staff shall implement and test all timing plans prior to field installation.
All signal sections shall be LED. Pedestrian heads shall be bimodal LED's
Traffic detection shall be accomplished using a video detection system.
Signals coordination shall be by radio signals.
The Municipal Engineer may require installation of an emergency vehicle pre-emption
system.
Traffic signal controllers, signal coordination equipment, video detection equipment
(except for cable) and pre-emption equipment, if required, shall be specified and
supplied by the Municipality at the cost of the Owner.
SL9
CONDUIT
Conduits shall be parallel or perpendicular to the roadway, and routed in a direct line
between adjacent poles or junction boxes except where there are existing or proposed
conflicts with the conduit run.
There shall be a maximum four 90° bends in a conduit run. If more bends are
unavoidable, junction boxes shall be used.
Street lighting conduits shall be minimum 30 mm diameter RPVC and located at back of
curb in a fore boulevard, where there is no fore boulevard behind sidewalk. Signal
conduits shall be minimum 50 mm RPVC and minimum 25 mm RPVC for loop stub-outs.
SL10 JUNCTION BOXES
Round plastic junction boxes with galvanized steel lids shall be used:
-
where there would otherwise be more than four 90° bends in a conduit run
-
where branch conduit runs are required
-
in conduit runs over 100 m
-
at service panels
Concrete junction boxes with steel lids shall be used for installations in sidewalk or hard
landscape areas.
Large concrete junction boxes with galvanized steel lids shall be used for traffic signal
installations only in the quadrant where the traffic controller is to be installed.
Schedule B | Design Criteria
Page 109
SL11 CONDUCTORS
Street lighting feeder conductors shall be No. 6 RW90 unless otherwise approved by the
Municipal Engineer.
Multi-conductor cable shall be used for traffic signal installations. The cable shall be in a
continuous run from the traffic controller to each pole with no splices.
SL12 SERVICE EQUIPMENT
The Design Engineer shall confirm service locations with the utility company.
Street lighting systems are to be controlled with a lighting contactor and with a photocell
located on the luminaire nearest the service panel.
Service panels for street lighting systems shall have a 60A - 2P breaker, contactor and
photocell bypass switch and shall be mounted in a service base in accordance with
MMCD Standard Detail Drawings. Smaller size service panels must be to the approval
of the Municipal Engineer and be detailed on the drawings in the form of a wiring
diagram or a one line diagram.
Where possible, traffic signal and street lighting systems shall be fed from the same
service panel. A combination street lighting and traffic signal service panel shall have a
100A - 2P main breaker, sub-breakers, contactor and photocell by-pass switch. The
service panel shall be mounted in a service base or on the side of a streetlight pole or
post located near the traffic controller. No signal equipment shall be mounted on the
same pole as the service panel.
All services shall be 120/240V single phase 3 wire unless otherwise approved by the
Municipal Engineer.
Service bases shall service a maximum of 25 lights.
Roads having staggered lighting shall have separate circuits on either side of the road.
SL13 CONCRETE BASES
When selecting pole base locations search out proposed or existing utility locations and
identify sensitive tree root Zones to avoid conflicts. The pole base shall be positioned
outside the drip line of trees proposed for retention. The Designer shall coordinate the
design with the Landscape Architect where applicable.
Where a custom base is required to accommodate unusual soils conditions or to avoid
underground utilities and sensitive tree root Zones, the custom base design shall be
provided by a Professional Engineer, licensed to practice structural engineering and
meet the approval of the Municipal Engineer.
No more than two conduits shall enter a streetlight pole base unless a junction box is
provided.
Schedule B | Design Criteria
Page 110
DESIGN CRITERIA
SECTION L - LANDSCAPE WORKS
For Table of Contents, refer to beginning of Schedule B
Schedule B | Design Criteria
Page 111
SECTION L - LANDSCAPE WORKS
L1
GENERAL
Property owners in the Township of Langley shall manage their lands for noxious weeds
and invasive plants as set out in the British Columbia Weed Control Act (B.C. Reg.
66/85); as per information supplied by the Invasive Species Councils of British Columbia
and Metro Vancouver; the British Columbia Ministry of Agriculture's Invasive Plant Alert;
information distributed by the Township of Langley, and the Langley Environmental
Partners Society; and as set out in this Schedule.
Boulevards, road medians and trails shall be provided and landscaped in accordance
with this Schedule, the Supplementary Specifications (Schedule C), the Supplementary
Detail Drawings (Schedule H) and the Neighbourhood Plan if one has been adopted for
the area in which the Development is proposed.
Subject to the requirements of a Neighbourhood Plan, greenway boulevards may be
required beside arterial roads, and conventional boulevards shall be provided adjacent
to urban roads in all other circumstances.
Subject to other requirements of this Bylaw, landscape design shall be responsive to site
conditions and adjacent land use and Development; preserve existing trees, vegetation
and topography; and incorporate the principles of crime prevention through
environmental design where appropriate.
Landscape requirements set out in this Schedule shall be varied as required by the
Municipality to avoid conflict with municipal and non-municipal utilities and
appurtenances, driveway locations, traffic site lines and requirements for hard surfacing.
A 1.5 m wide grass area clear of all obstructions shall be provided for access to fire
hydrants and standpipe connections.
All parts of a fence or a retaining wall, including footings, separating a boulevard or trail
from adjacent property shall be located on the adjacent property. This requirement does
not necessarily apply to access barrier fences.
Schedule B | Design Criteria
Page 112
L2
NOXIOUS/INVASIVE PLANT SPECIES
The Township of Langley has identified a number of noxious/invasive plant species
(where noxious/invasive plants are defined as "harmful invasive alien/non-native/or
native species of plants whose introduction or spread threatens the environment, the
economy, or society, including human health") of concern where land is acquired by
the Township through purchase or development requirement. The following
noxious/invasive plant species will require control:
-
Knotweed
o
Japanese Knotweed (Fallopia japonica, syn. Polygonum cuspidate,
Reynoutria japonica)
o
Bohemian knotweed (FallopiaX bohemica)
o
Giant Knotweed (Fallopia sachalinensis)
o
Himalayan Knotweed (Polygonum polystachyum)
-
Giant Hogweed (Heracleum mantegazzianum )
-
English Ivy (Hedra helix)
-
Purple Loosestrife (Lythrum salicaria L.)
-
Himalayan Balsam (Impatiens glandulifera)
-
Tansy Ragwort (Senecio jacobeae)
-
Horsetail (Equisetum arvense)
Provide a site assessment/investigation with respect to the presence of
noxious/invasive plants, on all lands being dedicated/transferred as road allowance,
park/conservation area, or for open space purposes, or otherwise transferred or
granted via Statutory Right of Way to the Township of Langley.
-
Offsite disposal of all plants of the noxious/invasive plant species and
contaminated soil is the preferred method of control.
Any imported growing media, aggregates, rocks, fill, or plant material being used for
the purposes of construction development of Greenways, boulevards, road medians,
or off-road trails, and any other landscape area, must come free of contamination of
the identified noxious/invasive plant species in this Schedule.
Should any of the identified noxious/invasive plant species of this Schedule become
evident in Greenways, boulevards, road medians, or off-road trails, and any other
landscape area during the one year landscape maintenance/warranty period, or the
noxious/invasive plant species monitoring period, they shall be eradicated at the
earliest opportunity by the developer's landscape contractor or approved Qualified
Professional.
-
Final sign-off/Acceptance of any landscape works shall not proceed until all
evidence of noxious/invasive plants has been dealt with according to this
Schedule.
Schedule B | Design Criteria
Page 113
L3
BOULEVARD AND MEDIAN LANDSCAPING
Boulevard and median landscaping shall be provided as follows along urban roads in
Service Level Areas 1 and 2.
L3.1
Conventional Boulevards
The fore boulevard between the curb and sidewalk and the back boulevard
between the sidewalk and the property line shall be levelled, drained and finished
with grass, unless otherwise required. Street trees shall be planted at offsets as
shown on the standard road cross section drawings, as noted in Schedule E,
subject to the provisions of Schedule B, Section L3.7.
Sidewalks shall be provided in accordance with Schedule B, Section R20.4
Sidewalks.
Where a boulevard abuts the rear or side of a lot that has its frontage on another
street, landscaping shall be provided as described for the back of trail portion of
greenway boulevards or if not, a greenway as per Supplementary Detailed
Drawing TLP 03.
L3.2
Greenway Boulevards
Greenway boulevards shall be consistent with Supplementary Detail Drawing
TLP 28
a) Fore Boulevard
Planting between the curb and trail shall consist of street trees, grass and
low shrubs and groundcovers with a mature height of less than 600 mm.
Typically, planting beds are centred on street trees and shall be
2 m width by 5 m length.
b) Back of Trail
A maximum of four varieties of shrubs shall be planted between the trail
and the property line. Shrubs against the property line shall have a height
at maturity of 1000 mm along a picket fence and 1200 mm along a solid
fence. A middle row of planting shall be a mixture of evergreen and
deciduous shrubs with mature height of 450 mm to 1200 mm. A row of
shrubs or groundcover with a mature height between 150 mm to 450 mm
height shall be planted closest to the trail. The planting bed shall have an
average width of 2 m varying between 1.5 m minimum and 2.5 m
maximum.
At the time of planting, tall evergreen shrubs shall be #3 pot size, middle
row shrubs shall be #2 pot size and groundcover plants shall be #1 pot
size or greater.
c) Trails
Trails in accordance with Section L4, and the Supplementary Detail
Drawing TLP 28 shall be provided in greenway boulevards. Grass shall
be provided on both sides of a trail at a 0.5 m width.
Schedule B | Design Criteria
Page 114
L3.3
Retaining Walls
Cross slopes of trails and conventional boulevards shall be in accordance with
the Roads Design Criteria (see Schedule B and Schedule H). Retaining walls
adjacent to boulevards shall be constructed of split face, natural concrete unit
wall installed in accordance with the manufacturers' instructions. The top shall
be horizontal and any longitudinal grade accommodated in evenly distributed
steps of a maximum of 300 mm or the height of a wall unit and cap. A
conceptual design for a retaining wall over 1.2 m high shall be submitted to the
Municipal Engineer for approval and the structural design shall be certified by a
professional engineer. The cap shall be securely attached to the wall.
L3.4
Planted Medians
Medians wider than 1.5 m between backs of curbs and longer than 6 m shall be
filled with growing medium, levelled and planted with a minimum of three species
of evergreen and deciduous shrubs and groundcovers, and evergreen and
deciduous trees. The mature height of shrub and groundcovers shall be a
maximum of 1000 mm. The plant size at time of installation shall be # 1 pot size
for groundcovers and #2 pot size or greater for shrubs. Deciduous trees shall be
6 cm caliper and evergreen trees 3 m high. Landscaped medians shall have a
450 mm wide concrete splash strip adjacent to the curb and automatic irrigation
in accordance with the Supplementary Detail Drawing TLP 25
L3.5
Tree and Plant Selection and Spacing
Street tree plantings should respond to the constraints of the boulevard and
building setbacks. Street tree selections should be made from the list in
Schedule E, Section E1 and approved by the Township. Street trees should be
spaced accordingly and in consideration of utilities, driveways and civil
appurtenances in the boulevard. Street trees planted in single family and
multiple family residential areas shall be 5 cm caliper and for other areas shall be
6 cm caliper.
New landscaping shall be designed to blend with existing adjacent plantings on
the same block. Changes in plant palette shall occur at road intersections.
Plants shall be chosen to provide seasonal colour and interest, hardiness,
drought tolerance and ease of maintenance. Maintenance considerations
include weed control and the need for minimal pruning. Plants listed in Schedule
E, Section E2 shall not be used. The Municipality may also refuse to allow other
plants to be used.
Boulevard and median plantings shall be designed to fill in as a mass planting
with no exposed soil within three growing seasons.
L3.6
Tree Planting
Tree planting trenches shall be provided in accordance with Supplementary
Detail Drawings TLP 23 to 25 in medians and in boulevards where trees are to
be planted between the curb and sidewalk. Tree planting trenches shall be
continuous except at driveway crossings, street lights, transformers and other
Schedule B | Design Criteria
Page 115
utility structures in the boulevard. Trenches shall be filled with growing medium
in accordance with the Supplementary Specifications.
All street trees, whether in front or behind the municipal sidewalk shall be
provided with 10 cubic metres of growing medium, including trees that are
located within a Hardscape boulevard or where the soil volume is otherwise
restricted. Structural Soil, Silva Cell™ Deep Root Partners structural frame, or
approved equivalent in accordance with Supplementary Detail Drawings TLP 23
and 24 shall be used to provide the required soil volume while providing the
required structural support for adjacent hard surface.
An approved root barrier shall be provided where trees are to be planted
adjacent to a sidewalk, driveway or in severely constrained planting areas that do
not allow for provision of adequate volumes of acceptable growing medium and
where tree roots may interfere with service corridors for underground utilities.
The barrier shall be located so that the major root structure shall be restrained
from extending into utility corridors and under curbs and sidewalks, but allow for
the normal growth of the tree.
L3.7
Tree Clearances
Trees shall be planted at offsets shown in the Supplemental Detail TLP 22 and
have the following minimum clearances to the trunk:
Street light poles
6 m
Utility poles
3 m
Manholes, valve boxes, water services
1.2 m
Sewer and drainage service connections
1.5 m
Edge of travelled lane
0.75 m
Edge of driveway, curb return, catchbasin
or above ground utility facility
2 m
Where there is a boulevard planting strip between back of curb and sidewalk or
trail, trees shall be planted 1 m from the back of curb. If existing street trees on
the same block have a lesser setback, the new trees shall match that setback if
approved by the Municipality. In other circumstances trees shall be a minimum
of 1 m from a sidewalk and 2.5 m from back of curb.
Trees shall be planted no closer to a road intersection than the projection of an
8 m x 8 m site triangle as shown on Supplementary Detail Drawing TLP 26.
L3.8
Time of Plant and Grass Installation
Unless otherwise approved, boulevard planting shall not be undertaken until
construction of 80% of the adjacent Development is complete.
Installation of grass sod in the boulevard shall be undertaken prior to the
issuance of an occupancy permit of a building on the adjacent lot.
Topsoil and grass in boulevards may be required by the Municipality at the time
of subdivision where, in their opinion, the adjacent land shall not be developed in
the near future.
Schedule B | Design Criteria
Page 116
L3.9
Irrigation
An underground irrigation system shall be provided in medians and behind the
curbs adjacent to greenway boulevards and shrub and groundcover plantings in
conventional boulevards consistent with Supplemental Detail Drawing TLP 31.
Irrigation design shall be reviewed and sealed by an Irrigation Designer certified
by the Irrigation Industry Association of British Columbia. The system shall be
metered and automatically activated through a timed control system. Water
meters shall be installed as required by the Langley Waterworks Bylaw.
Three copies of an operation and maintenance manual shall be submitted and
must include:
-
record drawings of the completed irrigation system
-
list of manufacturer's operation, service and repair instructions and parts
lists
-
maintenance procedures
L3.10
Drainage
Surface water shall be controlled by properly grading finished surfaces to avoid
standing water on boulevards, public greenspaces, and medians. Sheet flow
across trails is permitted. Concentrated flows across trail surfaces are not
permitted. Drainage systems connected to the municipal storm sewer system
may be required where landscaping is surrounded by hard surfaced boulevards
or sidewalks. Where possible, drainage elements should not be in conflict with
landscape requirements.
L3.11
Fencing and Associated Landscaping
Except specifically modified in a Development Permit:
a) Lots with Pedestrian Access across a Greenway Boulevard.
Where there is to be direct pedestrian access to individual dwellings
across a greenway boulevard, consistent with Supplemental Detail
Drawing TLP 08, a decorative wood picket fence shall be provided along
the lot boundary with arbour type gates provided for each dwelling and
climbing vines on each gate post. The sidewalk connection from private
to public shall be a cast in place concrete walkway to the standards and
specifications as provided by the Township of Langley.
b) Single Family, Commercial, Industrial and Institutional Lots
A continuous solid privacy fence shall be provided along the rear and side
boundaries of a lot abutting a boulevard in Service Level Areas 1 and 2,
and fence insets shall be provided for planting between the fence and
property line. The fence inset shall be planted with evergreen trees and
tall evergreen shrubs with a mature height no greater than 1200 mm. At
the time of planting, evergreen trees shall have a minimum height of 2.5
m.
c) Multiple Family Lots including Rowhouse
#6076
02/12/24
Schedule B | Design Criteria
Page 117
Except where there is to be direct pedestrian access across a greenway
boulevard, a low picket fence shall be provided along the boundary of a
multiple family lot or Rowhouse abutting a boulevard in Service Level
Areas 1 and 2.
A minimum 1 m wide planted bed with a minimum of two rows of
evergreen and deciduous shrubs and groundcovers shall be provided on
the boulevard. At the time of planting, shrubs shall be #2 pot size or
greater and groundcovers shall be #1 pot size or greater.
Refer to Zoning Bylaw 1987 No. 2500, as amended from time to time,
within Section 100 Landscaping Screening and Fencing for the matrix
identifying landscape area requirements relating to front, side and rear lot
lines.
d) Municipal and School Sites
A black vinyl, 1.8 m high, chain link fence and a cedar hedge, 1.5 m high
shall be installed at time of planting, along the park or school side of the
fence. Both chainlink fence and hedging are to be located on the
residential lot side of the property line. The School District does not
encourage access gates from private lots onto School property.
If required by the Municipality, a wood rail access barrier fence shall be
provided behind the sidewalk or trail, or the curb where there is no
sidewalk or trail, adjacent to a park or other municipal property with road
frontage longer than 6 m. If the fence is located in grass, a mowing strip
shall be provided on each side. If the fence abuts a sidewalk, the posts
shall be installed in brackets set in concrete and the fence shall not
encroach into the minimum required sidewalk width.
L4
TRAILS
Trails shall conform to this Section and be provided in accordance with a Neighbourhood
Plan and as components of separate trail systems. Urban trails shall be provided in
Service Areas 1 and 2 and shall be for the shared use of pedestrians and cyclists. Rural
trails in Service Areas 3 and 4 shall be shared use trails for pedestrians, cyclists and
equestrians.
L4.1
Trail Cross-Section and Surface
The minimum width of trail shall be:
Urban pedestrian and two way bicycle
3 m
Rural shared use
3 m
The minimum right-of-way width for trail systems not located in a boulevard shall
be 6 m.
Maximum cross slopes shall be 2% for bicycle use and 5% for pedestrian only
use.
Schedule B | Design Criteria
Page 118
Maximum longitudinal slope shall be 10% for bicycle and pedestrian use.
For a wheelchair accessible trail, the maximum longitudinal slope is 8%.
There shall be a vertical clearance of 2 m for pedestrians, 2.5 m for cyclists and
3 m for equestrians.
Trail surfaces shall be concrete in boulevards, asphalt in other urban locations
and gravel in rural areas.
L4.2
Retaining Walls
Where retaining walls are required they shall be provided in accordance with
Section L3.3.
L4.3
Fencing
A black vinyl, 1.5 m high chain link fence, consistent with Supplemental Detail
Drawing TLP 07 shall be provided along the boundary of a lot with a trail that is
not located within a boulevard, and a cedar hedge, 1.5 m high at time of planting,
shall be planted along the private side of the fence. In a conservation area,
native shrubs with a mature height of 1 m shall be provided along the trail side of
the fence.
A solid wood privacy fence shall be provided along the boundary of a lot with a
trail in an ecological greenway. A 3 m planting strip shall be provided between
the trail and the property line. Use Supplemental Detail Drawing TLP 06, without
the offset reference on approved drawings as necessary.
L4.4
Restrictive Barriers
Where trails in greenway boulevards cross driveways and intersecting roads the
following shall be provided:
-
wood bollards with pedestrian cautionary signs in accordance with
Standard Detail Drawing TLP 13
-
lockable, removable, steel restriction posts 6 m behind the pedestrian
letdowns
A minimum of one bollard shall be provided on a side shared use trail, with a
clearance of 1.4 m from the edge of walkway surface. If a situation warrants,
additional bollards may be acceptable with a minimum clear opening between
posts of 1.4 m, and the maximum gap shall by 1.6 m.
A bicycle stop baffle shall be provided at a minimum of 600 mm behind the
sidewalk, or the curb where there is no sidewalk, where a trail connects to a road
other than at a road intersection.
#6076
02/12/24
Schedule B | Design Criteria
Page 119
L4.5
Trail Signage
Trail identifier signs shall be installed perpendicular to the trail centreline at
intersections with streets, and parallel to the centreline elsewhere. Signs shall
conform to the Municipality's standard layout, font type, font size, and colours as
specified by the Township of Langley. Prior to fabrication, the Landscape
Architect shall confirm the trail name and shall submit colour proofs of the signs
to the Township of Langley.
-
Blue - PMS 286
-
Green - PMS 341
-
Yellow - PMS 123
-
White
-
Black
Sign posts with doggy bag dispensers shall be provided at intersections and
trailheads.
Environmental Area signs shall be provided at constructed creeks and
naturalized planting areas.
Park identifier signs shall be provided at parks and nodes.
L4.6
Site Furniture
Refer to Schedule D - Approved Materials and Products, Section 4 Landscaping
for additional information.
a) Benches
Benches, secured to concrete pads, shall be provided at 80 - 100 m intervals
along trails and located for maximum pedestrian comfort and minimal
potential for disturbance of neighbours.
b) Bicycle Racks
Bicycle racks shall be provided adjacent to, and at a level with, trails in
greenway boulevards in commercial and institutional areas within a good line
of sight of building occupants or in high pedestrian traffic areas.
c)
Drinking Fountains
Publicly accessible drinking fountains may be required every 1.6 km along
greenway boulevard trails where municipal water service is available or as
otherwise directed during the plan review phase.
Schedule B | Design Criteria
Page 120
d)
Multi-Stream Receptacles
-
Receptacles shall be provided along public pathways within 15 m of
service access points and roads. All receptacle locations to be
approved by the Manager, Green Infrastructure Services.
-
Receptacles shall be located no closer than 2.5 m from a public
bench.
-
Receptacles to be installed by Township of Langley Public Works
Department at owner's expense unless otherwise noted by the
Manager, Green Infrastructure Services.
-
Receptacle pads to be installed by the developer, unless otherwise
noted by the Manager, Green Infrastructure Services.
TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE C
CONSTRUCTION REQUIREMENTS
AND
SPECIFICATIONS
The Township of Langley "Supplementary Specifications" are supplemental
specifications to the Master Municipal Construction Document - 2009 Edition
(Platinum Book) and take precedence over the MMCD Specifications.
SCHEDULE C
CONSTRUCTION REQUIREMENTS AND SPECIFICATIONS
TABLE OF CONTENTS
SECTION 1 - GENERAL CONSTRUCTION REQUIREMENTS ................................................. 1
1.1 Construction Requirements ............................................................................................. 1
1.2 Pre-Construction Meeting ................................................................................................ 1
1.3 Permission to Construct ................................................................................................... 1
1.4 Materials and Workmanship ............................................................................................ 3
1.5 Survey Control ................................................................................................................. 3
1.6 Survey Monuments and Legal Postings ........................................................................... 3
1.7 Work of Others ................................................................................................................ 4
1.8 Existing Structures and Utilities ....................................................................................... 4
1.9 Design Errors, Unknown Conditions, Changes ................................................................ 4
1.10 Hours of Work ................................................................................................................ 4
1.11 Highway Use Permits .................................................................................................... 4
1.12 Progress of Work ........................................................................................................... 5
1.13 Inspections .................................................................................................................... 5
1.14 Suspension of Work....................................................................................................... 6
1.15 Equipment ..................................................................................................................... 6
1.16 Dewatering .................................................................................................................... 6
1.17 Blasting, Soil Compaction and Pile Driving .................................................................... 6
1.18 Weather Conditions ....................................................................................................... 7
1.19 Work to Fit With Others ................................................................................................. 7
1.20 Use of Completed Portions ............................................................................................ 7
1.21 Use of Fire Hydrants ...................................................................................................... 7
1.22 Testing of Water and Sewer Mains ................................................................................ 7
1.23 Safety and Protection of Property, Trees and Works and Services ................................ 7
1.24 Site Maintenance ........................................................................................................... 8
1.25 Easement Releases....................................................................................................... 8
1.26 Substantial Completion .................................................................................................. 9
1.27 Maintenance Period for Works and Services Except Landscaping ................................. 9
1.28 Record Drawings and Documents Submission ............................................................ 10
1.29 Landscape Completion Certificate ............................................................................... 10
1.30 Maintenance Period for Landscaping ........................................................................... 10
1.31 Certificate of Acceptance for Works and Services Except Landscaping ....................... 11
1.32 Certificate of Acceptance for Landscaping ................................................................... 11
SECTION 2 - SPECIFICATIONS ..............................................................................................12
2.1
Master Municipal Specifications And Standard Detail Drawings .................................. 13
2.2
Supplementary Specifications ..................................................................................... 15
Division 01 - General Requirements ..........................................................................15
MMCD Section 01 33 01S Project Record Documents ............................................15
MMCD Section 01 55 00S Traffic Control, Vehicle Access and Parking ..................16
MMCD Section 01 57 01S Environmental Protection ..............................................17
MMCD Section 01 58 01S Project Identification ......................................................19
Division 03 - Concrete ...............................................................................................20
MMCD Section 03 30 20S Concrete Walks, Curbs and Gutters ..............................20
MMCD Section 03 30 53S Cast-In-Place Concrete .................................................20
Division 26 - Electrical ...............................................................................................21
MMCD Section 26 56 01S Roadway Lighting ..........................................................21
Division 31 - Earthworks ............................................................................................27
MMCD Section 31 11 01S Clearing and Grubbing and Mass Excavation ................27
MMCD Section 31 11 41S Shrub and Tree Preservation ........................................28
MMCD Section 31 23 01S Excavating, Trenching and Backfilling ...........................30
MMCD Section 31 24 13S Roadway Excavation, Embankment and Compaction ...30
Division 32 - Road and Site Improvements ................................................................31
MMCD Section 32 11 16.1S Granular Sub-base .....................................................31
MMCD Section 32 12 16S Hot Mix Asphalt Concrete Paving ..................................31
MMCD Section 32 17 23S Painted Pavement Markings ..........................................32
MMCD Section 32 31 13S Chain Link Fences and Gates .......................................32
MMCD Section 32 91 21S Topsoil and Finish Grading ............................................35
MMCD Section 32 92 19S Hydraulic Seeding .........................................................36
MMCD Section 32 92 20S Seeding .........................................................................37
MMCD Section 32 92 23S Sodding .........................................................................38
MMCD Section 32 93 01S Planting of Trees, Shrubs and Ground Covers ..............39
MMCD Section 32 93 02S Irrigation ........................................................................42
MMCD Section 32 93 03S Landscaping Establishment Maintenance .....................52
Division 33 - Utilities ..................................................................................................61
MMCD Section 33 01 30.1S CCTV Inspection of Pipelines .....................................61
MMCD Section 33 11 01S Waterworks ...................................................................76
MMCD Section 33 42 13S Pipe Culverts .................................................................79
MMCD Section 33 44 01S Manholes and Catchbasins ...........................................80
Division 34 - Transportation .......................................................................................81
MMCD Section 34 41 13S Traffic Signals ...............................................................81
SECTION 1 - GENERAL CONSTRUCTION
REQUIREMENTS
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 1
1.1 Construction Requirements
All Works and Services shall be provided in accordance with this Bylaw and the following
documents which shall govern and take precedence in the following order:
1. Any project specific supplementary specifications accepted in writing by the Municipal
Engineer;
2. Accepted Drawings;
3. Specifications in Schedule C;
4. Supplementary Detail Drawings in Schedule H;
5. These General Requirements;
6. MMCD Specifications; and
7. MMCD Standard Detail Drawings.
1.2 Pre-Construction Meeting
Before commencing construction of the Works and Services, the Owner together with the
Owner's Engineer, Landscape Architect and the Owner's prime contractor(s) shall attend a pre-
construction meeting with the Municipal Engineer. The Owner shall submit schedules as
follows:
-
a construction schedule showing the completion dates of the various parts of the Works
and Services;
-
the nature and frequency of proposed site meetings and site inspections to determine
whether the Works and Services are being constructed in accordance with the Bylaw
and Accepted Drawings; and
-
the nature and frequency of proposed field and laboratory testing, including video
inspection, of workmanship, materials and equipment.
A tree protection plan shall be submitted in accordance with Schedule I of this Bylaw.
The names, qualifications and emergency and regular contact information of the site
superintendent, inspectors and any independent inspection and testing agencies must also be
submitted at this time.
These schedules, personnel and testing agencies shall be subject to acceptance by the
Municipality.
Some variation in theses schedules necessitated by unforeseen conditions or circumstances is
acceptable, but the average rate of progress of each portion of work and the level of inspection
and testing shall be maintained in close conformity with the schedule.
1.3 Permission to Construct
Except as necessary to construct ESC Facilities in accordance with Erosion and Sediment
Control Bylaw 2006 No 4381, as amended and tree protection fencing in accordance with
Schedule I of this Bylaw, no land clearing, stripping of top soil, excavation, placement of fill,
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 2
construction or installation of any kind may be undertaken on a Subdivision site until Permission
to Construct has been issued by the Municipal Engineer.
Before Permission to Construct is issued, ESC Facilities and tree protection fencing, both as
referred to above, shall be installed, the design drawings must be accepted by the Municipality
in accordance with Schedule B Section DR6.3 and the following provided:
-
the name of the contractor(s) to be employed by the Owner for installation and
construction of the Works and Services and a summary of the projects completed by the
contractor(s) that are similar in scope nature and value to the Works and Services;
-
the name of the site superintendent who shall supervise the construction of the Works
and Services and be on-site at all times throughout its progress and who shall represent
the Owner and his contractor during the Owner's absence, together with a resume of
his/her related experience;
-
registered rights-of-way for Works and Services across lands owned by other parties;
-
amendments to existing, registered rights-of-way and easements in favour of other
parties to permit Works and Services in accordance with the Bylaw and design drawings;
-
a copy of the notice of project to WorkSafeBC of the proposed construction and
installation of the Works and Services naming the Owner as the prime contractor in
accordance with the Occupational Health and Safety Regulation;
-
approvals for crossings of provincial Highways, railway tracks, high pressure gas
distribution mains, oil pipelines, B.C. Hydro and any other rights-of-way;
-
a Construction Permit from the Regional Public Health Engineer for the installation of
any Waterworks;
-
documentation to confirm that the Owner submitted a Notification application as required
under the Water Act to the Ministry of Environment (MoE) at least 45 days prior to any
scheduled in stream work such as installation of bridges, culverts, pipeline crossings and
storm water outfalls and a Notification response letter from MoE including any project
specific terms and conditions if received during the 45 day waiting period;
-
an Approval pursuant to Section 8 of the Water Act issued by the MoE for any project
involving the temporary use or diversion of water from a stream;
-
a License pursuant to Section 7 of the Water Act issued by MoE for any project involving
the permanent use, storage or diversion of water from a stream;
-
documentation to confirm that the Owner has notified MoE that work is proposed in an
Environmentally Sensitive Area, other than in or near a stream and the response (if any)
from MoE;
-
a permit for disposal, including burying or dumping, of any solid or liquid wastes on-site
issued under Section 10 of the Waste Management Act by MoE;
-
an authorization under Subsection 35(2) of the Fisheries Act issued by Fisheries and
Oceans Canada for projects which have the potential to cause harmful alteration,
disruption or destruction of fish habitat or to cause harm to fish, such as installation of a
culvert, removal of streamside vegetation or other works in or about a stream;
-
a Highway Use Permit issued by the Municipal Engineer; and
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 3
-
any other approvals, licences, authorizations, permits or equivalent required by the
Municipal Engineer.
The granting of Permission to Construct by the Municipal Engineer does not constitute
subdivision approval.
1.4 Materials and Workmanship
The whole of the Works and Services shall be performed in a businesslike manner.
Unless the Municipal Engineer agrees to provide any materials, all materials required for the
Works and Services shall be supplied by the Owner and shall conform with the requirements of
the Bylaw and the Accepted Drawings. The Owner shall pay on demand for any material
supplied by the Municipality.
The Owner shall supply representative samples of materials for the purpose of testing as and
when requested by the Municipal Engineer, at no cost to the Municipality.
Any materials which, in the opinion of the Municipal Engineer, do not conform to the
requirements of the Bylaw, or are unsuitable for the purposes for which they are intended, shall
be rejected. Unless otherwise specified, all materials shall be new. Rejected materials shall not
be incorporated into the required Works and Services and shall be replaced by the Owner at
his/her own expense with materials accepted by the Municipal Engineer.
The Owner shall be responsible for all materials and store them safely until incorporated into the
Works and Services.
1.5 Survey Control
Survey control necessary for installation of the Works and Services shall be the responsibility of
the Owner. The survey control shall be carried out accurately and care taken to avoid
cumulative errors. All work shall be constructed to the lines and grades shown on the Accepted
Drawings.
1.6 Survey Monuments and Legal Postings
All legal posts, stakes, survey monuments and integrated survey monuments within the area of
the Works and Services, and all construction stakes and marks on adjoining land, shall be
preserved undisturbed and visible. In the event that any of the above are disturbed, lost or
destroyed, they shall be replaced to the acceptance of the Municipal Engineer. Actual re-
establishment of the monuments shall be undertaken by the Municipality, but all costs for
replacement or re-integration shall be borne by the Owner.
All surveys within integrated areas of the Municipality shall be tied to the monument system
based on the Surveyor General's Instructions.
Additional survey monuments shall be required to achieve a minimum density level as areas
become developed. Integrated survey monument locations shall be established by the Municipal
Engineer in accordance with provincial standards.
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 4
1.7 Work of Others
The Municipal Engineer shall be at liberty to enter upon the site of the work with his workmen
and materials to do other work, and the Owner shall afford any such workmen all reasonable
facilities to the acceptance of the Municipal Engineer.
The Owner shall arrange his work and dispose of his materials in such a manner as shall not
interfere with the work or storage of materials of others upon the site of the Work. The Owner
shall join his work to that of others and perform his work in proper sequence in relation to that of
others to the acceptance of the Municipal Engineer.
1.8 Existing Structures and Utilities
At the commencement of construction, the Owner shall expose existing underground utilities
and structures under the supervision of the Owner's Engineer or other utility company's
representative to confirm the alignment, elevation and pipe material shown on the Accepted
Drawings with particular attention to proposed tie-in and crossing points.
Any plans or descriptions, verbal or otherwise of existing utilities and structures provided by the
Municipality are intended only as an aid in the location of these items. The Municipality accepts
no responsibility for the accuracy of their locations.
1.9 Design Errors, Unknown Conditions, Changes
Any errors, conflicts, inconsistencies or omissions discovered in the design and any
discrepancies discovered in the location of existing utilities, that affect the design, shall
immediately be reported to the Municipal Engineer.
If, as a result of errors, conflicts, inconsistencies or omissions in design or of the discovery of
previously unknown or concealed conditions, it becomes necessary, or in the opinion of the
Municipal Engineer desirable, to make any change in the design, installation of the affected
Works and Services shall be stopped pending the Owner's Engineer's revision of the Accepted
Drawings and their acceptance in writing by the Municipal Engineer.
The Owner shall, if necessary, reconstruct any Works and Services previously installed by the
Owner or others or pay for the Municipality or utility company to reconstruct their existing works,
in a manner satisfactory to the Municipal Engineer and in conformance with the Bylaw.
No significant changes shall be made to the accepted design and specifications for any reason
except as accepted by the Municipal Engineer in writing.
1.10 Hours of Work
Unless otherwise approved by the Municipal Engineer, the Owner shall not execute any work
requiring municipal inspection outside the normal working hours (8:30 am to 4:30 pm, Monday
to Friday) of the Municipality's inspectors.
1.11 Highway Use Permits
Work undertaken on a Highway or on a gazetted or dedicated Highway right-of-way and all full
or partial road closures require a Highway Use Permit issued by the Municipal Engineer under
the Highway and Traffic Bylaw.
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 5
1.12 Progress of Work
The Owner shall perform his/her work on each section of the Works and Services continuously
until completion.
For sanitary and storm sewer mains, the term "section" shall mean that portion of the work from
manhole to manhole, inclusive.
For watermains, the term "section" shall mean that portion of the work between any consecutive
line valves.
For roadway, sidewalk, curb and gutter, the term "section" shall mean that component of the
work between intersections.
The Owner's Engineer shall keep the Municipal Engineer properly and adequately advised of
the progress of the construction and installation of the Works and Services.
1.13 Inspections
The Owner's Engineer and Landscape Architect shall provide necessary inspection services to
ensure compliance with the Bylaw and the Accepted Drawings.
1. At the request of the Municipal Engineer, the Owner's Engineer shall give 24 hours
advance notice of some or all of the following inspections
a) prior to covering of each underground municipal utility;
b) at the completion of subgrade preparation;
c) at the completion of base compaction;
d) prior to curbing and sidewalk construction;
e) prior to paving.
2. The Owner's Engineer shall provide weekly inspection reports to the Municipality in a
form and to a level of detail acceptable to the Municipality.
3. If the Owner's Engineer has not performed full time inspection during installation of all
underground facilities, including pipe surround materials and during all required testing
and at the times indicated in Section 1.13, 1. a) to e);
a) the Owner shall, at the request of the Municipal Engineer and within such time as the
Municipal Engineer shall designate, open for inspection any part of the Work and
Services that has been covered up; or
b) the Municipality may conduct independent testing of any Works and Services, at the
cost of the Owner, to ensure they meet the minimum acceptable standards.
4. The Owner's Landscape Architect shall be responsible for inspection of all landscaping
work including topsoil, seeding, trees, shrubs and groundcovers.
5. The Owner's Landscape Architect shall provide the following minimum key inspections
and subsequent reports to the Municipality:
a) Tree protection measures
b) Landscape subgrade and trail layout
c) Growing medium and installation
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 6
d) Finish grading and drainage
e) Plant Installation
f) Fencing and Signage
g) Landscape Completion Inspection
h) Establishment Maintenance Inspections
i) Landscape Acceptance Inspection
6. The Owner's Landscape Architect shall inform the Green Infrastructure Services
Department when formwork is in place and ready for concrete. Concrete shall not be
poured prior to municipal review and confirmation of acceptable layout.
The Municipality does not, by any monitoring or inspection of the Works and Services by the
Municipality, warrant or represent that the Works and Services are without defect and such
monitoring or inspection does not relieve the Owner's Engineer and Landscape Architect from
responsibility for proper engineering and landscape inspection as required by the Bylaw.
1.14 Suspension of Work
The Municipal Engineer may suspend the work, or any part of it, at any time on written notice to
the Owner for reasons of public health or safety; or for non-compliance with federal or provincial
legislation, regulations or codes, or municipal bylaws or requirements including work that, in the
opinion of the Municipal Engineer, does not meet the requirements of this Bylaw.
1.15 Equipment
All specialized equipment used and methods employed in the carrying out of the work shall be
subject to the approval of the Municipal Engineer. Care must be taken in turning construction
equipment so that no damage occurs to the pavement.
All equipment must be in good working order and inspected to ensure there is no leakage of any
contaminants.
1.16 Dewatering
The Owner shall ensure that excavations are continuously dewatered and take all reasonable
precautions necessary to prevent flotation of any pipe or structure, settlement of surrounding
ground or soil migration.
If well pointing is used to dewater excavations, pumping shall be continued until backfilling
operations have been completed. Thereafter, pumping shall be gradually stopped for the
portions backfilled to allow a gradual rise in the water table level.
1.17 Blasting, Soil Compaction and Pile Driving
The Municipal Engineer, in giving permission for blasting, rapid impact compaction, pile driving
or similar procedures does not assume responsibility for resulting injury, loss of life or damage,
and such consent shall not be construed as approval of the methods employed by the Owner in
blasting. Any damage caused by blasting shall be repaired by the Owner at his/her own
expense.
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 7
1.18 Weather Conditions
If the Municipal Engineer determines that weather conditions may prevent proper completion of
any portions of the Works and Services, the Municipal Engineer may request additional testing
to ensure compliance with industry standards. The Owner shall have no claim against the
Municipality for additional testing.
1.19 Work to Fit With Others
All cutting, fitting or patching of the Works and Services shall be done to properly fit or receive
existing structures and utilities. Existing works shall not be endangered by cutting, digging or
any other operation and the work of others shall not be disturbed or altered except with the
written consent of the Municipal Engineer.
1.20 Use of Completed Portions
The Municipality shall have the right to take possession of and use any completed or partially
completed portion of the Works and Services, but such possession and use shall not be
deemed an acceptance in accordance with Section 1.31. If such prior use increases the cost of
uncompleted work or causes refinishing of completed work beyond normal wear and tear, the
Owner shall be entitled to such compensation as the Municipal Engineer may determine.
1.21 Use of Fire Hydrants
Hydrants shall only be used in accordance with a Fire Hydrant Permit. Only municipal
employees may operate a hydrant.
1.22 Testing of Water and Sewer Mains
Unless otherwise authorized by the Municipal Engineer, testing of all newly constructed water,
sanitary or storm sewer mains shall be completed prior to connection to existing municipal
mains.
Testing of mains and service connections to the property line shall be done after road base
construction and before any asphalt paving.
1.23 Safety and Protection of Property, Trees and Works and Services
The Owner shall take all reasonable precautions to prevent injury to persons, to avoid damage
to adjacent property and to avoid or minimize damage to completed and partly complete Works
and Services.
If, in the opinion of the Municipal Engineer, a potential safety hazard or risk of property damage
or, in the case of work on public land, significant inconvenience to the Municipality or the public
may result from the Owner's work, the Municipal Engineer may require the Owner to undertake
corrective action upon such notice as he or she deems appropriate. If the Municipal Engineer
considers there is immediate danger or some other emergency situation, corrective action may
be taken by the Municipality without notice being sent to the Owner, and all related expenses
shall be charged to the Owner.
Any damage to municipal property resulting from the activities of the Owner or the Owner's
workmen, agents or contractors shall be reinstated by the Municipality at the cost of the Owner
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 8
unless otherwise approved by the Municipal Engineer. Reinstatement includes the supply and
installation of new materials where existing material is deemed unsuitable for re-use by the
Municipal Engineer and any necessary retesting and disinfection.
The Owner shall be responsible for minimizing damage to all trees and vegetation to be
retained. Until a Certificate of Acceptance is issued, the Owner shall be responsible for all
claims and costs for tree damage including the cost of examination by an ISA Certified Arborist
and repair, removal and replacement of trees, as required by the Arborist or the Owner's
Landscape Architect. Damage shall be assessed based on the International Society of
Arboriculture Guidelines.
1.24 Site Maintenance
The Owner shall at all times maintain the Development site and any other affected and adjacent
lands free from accumulations of waste materials, debris and rubbish and not unreasonably
encumber them with materials or equipment. Accumulations of waste materials which might
constitute a fire hazard shall not be permitted.
The Owner shall keep roads, lanes and walks affected by the work clean and free of all
materials and unlicensed equipment at all times. Debris and mud, which is tracked or otherwise
deposited onto areas outside the construction site, and any spills, must be promptly cleaned up.
Roadways shall be cleaned every day unless otherwise approved by the Municipal Engineer.
Dust preventatives shall be used on temporary haul roads when a dust nuisance is being
created. Water may be used to control dust when a road is open to public access, when
vehicular traffic is light and sediment control measures are in place.
Cuts in existing public roads shall be patched with hot mix asphalt at the end of each working
day.
In accordance with the Erosion and Sediment Control Permit, clean up shall be a continuing
process from the start of the work until the Certificate of Acceptance is issued. If dust, mud or
other debris are not kept under control to the satisfaction of the Municipal Engineer, the
Municipality shall take the necessary steps to undertake the work and all costs incurred shall be
charged to the Owner.
1.25 Easement Releases
On completion of the Works and Services on private or Municipal property or Municipal rights-
of-way, the Owner shall obtain from each property Owner affected, a formal release in writing
and over the property Owner's signature, verifying that the clean-up has been performed and
completed to the property Owner's acceptance and that the property Owner has no further claim
upon the Owner or the Municipality as a result of such work. A Form of Release shall be
required by the Municipal Engineer. All such releases shall be turned over by the Owner to the
Municipal Engineer and shall be retained by the Municipal Engineer as a part of the
Municipality's records.
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 9
1.26 Substantial Completion
On completion of the Works and Services, except for boulevard landscaping and work that must
be adjusted after completion of paving, all portions shall be inspected by the Owner and the
Owner's Engineer who shall certify that the Works and Services have been constructed and
installed in accordance with the Bylaw and the Servicing Agreement. Works and Services not
constructed in accordance with the Bylaw and the Accepted Drawings shall not be accepted.
The Owner shall, at his/her own expense correct any fault, defect or damage from any cause
whatsoever which may prejudicially affect the strength, durability or appearance of any section
of the Works and Services.
All existing signs and posts, curbing, sidewalks, drainage ditches and culverts, shrubs, fences
and other surface features that have been removed, damaged or disturbed by the construction
process shall be restored or replaced by the Owner to a condition equivalent or better than that
which existed before the work began.
The Owner shall ensure all new and affected downstream valve boxes, catchbasins, manholes,
and sewers are cleaned and made free from all granular, asphaltic, silt and other debris
immediately after the Works and Services have been completed.
After correction of any defects and deficiencies, the Owner's Engineer shall submit the releases
referred to in Section 1.25 and all test results, video inspection tapes and reports and a copy of
a certificate of inspection from the provincial electrical inspector that the street lighting system is
approved. The Owner's Engineer shall then request an inspection by the Municipal Engineer.
If not satisfied with the submissions or that all defects and deficiencies have been corrected, the
Municipal Engineer shall issue a defects and deficiencies list and may require that all or a
portion of said section of the Works and Services be removed and subsequently reconstructed
in accordance with the Bylaw and the Accepted Drawings. The Owner's Engineer must
resubmit any additional test and video inspection results when corrections have been made.
When of the opinion that the requirements of this section have been satisfactorily completed,
the Municipal Engineer shall issue a Certificate of Substantial Completion.
1.27 Maintenance Period for Works and Services Except Landscaping
The maintenance period shall commence on the date shown on the Certificate of Substantial
Completion except that if the Municipal Engineer determines that any work completed or
deficiencies or defects corrected after the issue of the Certificate of Substantial Completion is of
major significance, the maintenance period for that work and any new materials supplied shall
commence from the date the Municipal Engineer accepts such completion or remedial work.
The maintenance period shall be the one year period from the date of commencement or until,
for Works and Services within a Subdivision, the Subdivision plan has been registered in the
Land Title office, whichever is later.
The Owner shall guarantee the stability and sufficiency of the materials and workmanship
supplied and the whole of the Work performed and shall be responsible for and shall make good
all defects, imperfections, acts of vandalism and settlement damage regardless of cause which
become apparent during the Maintenance Period.
The Owner shall ensure that the roads, sidewalks and walkways are kept clean and free of dirt
and debris during the Maintenance Period and continue to maintain the Drainage, Erosion and
Sediment Control Works.
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 10
Any remaining restoration and clean up on public land shall be completed not later than twenty
working days following issuance of the Certificate of Substantial Completion otherwise the
Municipality may complete the restoration and charge the cost to the Owner.
As soon as possible after completion, and in any case before the Certificate of Acceptance is
issued, the Owner shall remove or otherwise dispose of all rubbish, surplus or discarded
material, falsework, forms, temporary structures and all equipment and machinery, and shall
leave the work, dedicated roads and parks and any land being conveyed to the Municipality in a
clean and tidy condition.
Should the Owner fail to make good any defects, imperfections, vandalism acts, settlements or
clean-up after being given at least seven (7) days notice in writing during the Maintenance
Period, the Municipality shall be entitled to make alternative arrangements for the execution of
the repairs and to recover the costs from the Owner. In case of immediate danger or
emergency, Section 1.23 applies.
1.28 Record Drawings and Documents Submission
Within 60 days of the issuance of the Certificate of Substantial Completion, the Owner shall
deliver Record Documents to the Municipal Engineer in accordance with Schedule B Section
DR9.
Within three weeks of receiving the Municipal Engineer's comments on the Record Documents,
the Owner's Engineer shall deliver the final corrected Documents in accordance with that
Section.
1.29 Landscape Completion Certificate
Upon completion of landscaping in accordance with the conditions set out in MMCD 02933
Section. 3.7, 02934 Section 3.9, 02938 Section 3.5 and 02950 Section 3.10 and completion of
any required irrigation systems in accordance with Supplementary Specification 02960, the
Owner shall notify the Municipality who shall have the Work inspected with the Landscape
Architect and, if necessary, issue a list of deficiencies that must be corrected. Upon correction of
the deficiencies, to the acceptance of the Municipality, a Landscape Completion Certificate shall
be dated and issued
1.30 Maintenance Period for Landscaping
The Maintenance Period shall be the one year period from the date shown on the Landscape
Completion Certificate.
During the Maintenance Period, the Owner shall replace any plant material that dies, is
damaged or that fails to grow satisfactorily as determined by the Municipality and make good all
defects, imperfections, acts of vandalism and settlement damage affecting the irrigation system
regardless of cause. All replacements of plant material shall be with plant material of the same
kind and size as the original plantings.
The warranty on replacement plant material or irrigation equipment shall extend for a period
equal to the original warranty period.
Weed Control: Comply with minimum BC Landscape Standards for Maintenance Level 3,
Moderate.
Schedule C | Construction Requirements and Specifications
Section 1 - General Construction Requirements
Page 11
Should the Owner fail to make good any defects, imperfections, vandalism acts, settlements or
clean-up after being given at least seven (7) days notice in writing during the maintenance
period, the Municipality shall be entitled to make alternative arrangements for the execution of
the repairs and to recover the costs from the Owner.
The Municipality may extend the Owner's warranty responsibilities for an additional year if in his
opinion, at the end of the initial warranty period, leaf development, growth or overall vigour is not
sufficient to ensure future survival.
1.31 Certificate of Acceptance for Works and Services Except Landscaping
A Certificate of Acceptance shall be issued by the Municipality upon expiration of the
maintenance period provided all deficiencies and defects, except for normal wear and tear, have
been remedied to the Municipal Engineers satisfaction and all requirements of Schedule C,
Section 1.27 have been met.
The Owner shall continue to be fully responsible for the condition of Works and Services until
such time that they are accepted by the Municipal Engineer.
1.32 Certificate of Acceptance for Landscaping
A Certificate of Acceptance shall be issued by the Municipality upon expiration of the
maintenance period provided all deficiencies and defects, except for normal wear and tear, have
been remedied to the Manager, Green Infrastructure Services satisfaction and all requirements
of Schedule C, Section 1.30 have been met.
The Owner shall continue to be fully responsible for the condition of Works and Services until
such time that they are accepted by the Manager, Green Infrastructure Services.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 12
SECTION 2 - SPECIFICATIONS
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 13
2.1
Master Municipal Specifications And Standard Detail Drawings
The Specifications and Standard Detail Drawings of the 2009 (Platinum Edition) of the Master
Municipal Construction Document (MMCD) are incorporated into Township of Langley
Subdivision and Development Servicing Bylaw.
For Works to be Performed under Servicing Agreement
MMCD is written to form part of a contract between an Owner and a contractor, and the MMCD
Specifications, either directly or by reference to the General Conditions, include references to
the respective responsibilities of the Owner, the Contractor and the Contract Administrator. The
applicability of MMCD in connection with this Bylaw is with respect to technical specifications
and construction details only, and does not involve the Municipality in the contractual
relationship that the Owner has with the contractor(s) hired by the Owner or that the Owner has
with professional staff, consultants or other agents. Except as specified elsewhere in this
Bylaw, the Municipality places full responsibility for design, construction, installation, inspection,
testing and record keeping of Works and Services on the Developer (the Owner) who is
required to hire the Owner's Engineer (the Contract Administrator) and the Landscape Architect
to undertake duties in accordance with the Bylaw, and MMCD must be interpreted in this way.
MMCD Specifications and Standard Detail Drawings are supplemented by this Section. In case
of inconsistency, the Bylaw and Schedules take precedence over MMCD.
This Section may be further supplemented by supplementary specifications and drawings
submitted in connection with a specific project and accepted by the Municipal Engineer.
The Supplementary Specifications in this Schedule include some that apply to all Sections, as
well as Supplementary Specifications that apply to individual sections of MMCD, which are
integrated into MMCD using the same numbering system as in that document.
Following Supplementary Specifications will be applicable to all Sections
-
Delete or replace as follows except where required otherwise in subsequent sections:
(a)
delete references to General Conditions;
(b)
delete references to "payment";
(c)
replace "Contract Administrator" with "Owner's Engineer" except in MMCD
Specification:
01 55 00;
31 11 41;
32 92 19;
32 92 20;
32 92 23; and,
32 93 01.
(d)
replace "Contractor" with "Owner";
(e)
replace "Owner" with "Municipality";
(f)
replace "Contract Documents" with "this Bylaw and the Accepted Drawings";
(g)
replace "Supplementary Specifications" with Schedule C of this Bylaw and
supplementary specifications accepted for construction by the Municipal
Engineer".
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 14
-
Delete Measurement and Payment for all Sections
-
Replace Inspection and Testing for all Sections with the following:
Testing must be carried out in accordance with the schedule provided to, and
accepted by, the Municipal Engineer at the pre-construction meeting in
accordance with Paragraph 3 of the General Construction Requirements or as
otherwise required by the Municipal Engineer.
The source and material characteristics of granular products and asphalt must be
approved as meeting the required specifications by an independent testing
agency with CCiL certification prior to receipt of the materials on site.
Testing of the compaction of fill and asphalt and the strength of in-situ concrete
must be undertaken by an independent agency, with CCiL certification, as
required by the Owner's Engineer to prove conformance to respective
Supplementary Specifications.
Testing carried out by the Owner's contractor must be undertaken in the
presence of the Owner's Engineer who shall confirm the results.
All tests and reports shall be submitted to the Owner's Engineer for review and
interpretation to determine if the Works and Services have been constructed in
accordance with the Bylaw and the Accepted Drawings and he or she shall
provide the reports to the Municipal Engineer.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 15
2.2
Supplementary Specifications
Division 01 - General Requirements
MMCD Section 01 33 01S
Project Record Documents
1.0
GENERAL
Add 1.0.2
Operation and maintenance (O&M) manuals shall
be prepared by the Contractor for all projects
containing mechanical, electrical or
instrumentation materials and equipment, such as
but not limited to pump stations, sewage force
mains and siphons, district energy systems, flood
boxes, control valves and gates, storm water
detention and water quality facilities, reservoirs,
pressure reducing stations, wells, flow meters and
level meters.
O&M manuals shall address all related below-
ground and building interior materials and
equipment.
1.3
Submission
Delete 1.3 and
replace with the
following:
Submit and revise in accordance with Schedule B
Section DR9.
1.7
Recording
Actual Site
Conditions
Amend 1.7.2.1
After "appurtenances" insert: "...including exact
location of wyes along sanitary sewers and storm
drains and elevations of service connections at
property lines."
2.0
PRODUCTS
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 16
MMCD Section 01 55 00S
Traffic Control, Vehicle Access and Parking
1.0
GENERAL
Delete 1.0.5 and
replace with the
following:
Unless alternative arrangements satisfactory to
those adversely affected have been made by the
Owner, pedestrian and vehicular access to
affected properties shall be maintained at all times.
Add 1.0.6
The Contractor is responsible for all temporary
traffic control within the project limits The
Contractor will provide a Traffic Management Plan
(TMP) to the Contract Administrator for approval
(5) five working days prior to any work taking
place. TMP is to be prepared and sealed by a
Professional Engineer of British Columbia.
The TMP shall outline the approach to traffic
management, show recognition and minimization
of risks indicates signing locations, identify Traffic
Control Persons (TCP) stations, show lane shifting
and proposed closures.
1.4
Traffic Control
Delete 1.4.5 and
replace with the
following:
Do not close any lanes of road or Highway without
approval of the Owner. Before re-routing traffic
erect suitable signs and devices as approved by
the Owner.
Delete 1.4.9.3
and replace with
the following:
Supply and erect sign, delineators, barricades and
miscellaneous warning devices as specified in the
Ministry of Transportation and Highways
publication 'Traffic Control Manual for Work on
Roadways'.
Add
1.4.9.3.1
The Contractor is required to supply Construction
Zone information signs (stationary), refer to MMCD
01 58 01 for the required identification signage.
The Contractor is responsible for the removal of
the signs at the completion of the work.
Add 1.4.10.8
Provide certification to the Contract Administrator
for all traffic control persons upon request.
2.0
PRODUCTS
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 17
MMCD Section 01 57 01S
Environmental Protection
1.0
GENERAL
Add 1.0.3
Submit an Erosion and Sediment Control Plan
(ESC) to the Contract Administrator five (5) days
prior to starting construction. No construction
activities shall start until all ESC measures are in
place.
1.2
Temporary
Erosion and
Sediment
Controls
Delete 1.2.1
and replace
with the
following:
Properly drain all portions of the site. Protect the
site and the watercourses to which it drains,
directly or indirectly, against erosion and siltation in
accordance with an ESC Plan. The Contractor is
responsible for all damage that may be caused by
water backing up or flowing over, through, from or
along any part of the work or otherwise resulting
from his operations.
Keep existing culverts, drains, ditches and
watercourses affected by the work clear of
excavated material at all times. When it is
necessary to remove or alter an existing drainage
structure, provide suitable alternative measures for
handling the drainage.
Sweep streets, and clean catch basins, manhole
sumps, detention tanks, and maintain siltation
controls as often as the Contract Administrator
deems necessary, or at the request of the
Municipality.
Follow all Federal and Provincial regulations and
guidelines respecting protection of fish, fish
habitat, and watercourses.
The Contractor's environmental monitor is
responsible for monitoring ongoing compliance
with this section.
1.3
Delete 1.3 and
replace with the
following:
"1.3
Duty to Control Noxious Weeds"
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 18
Add 1.3.1
Immediately control and enclose area containing
designated weeds as per the current BC Weed
Control Act.
Add 1.3.2
Immediately notify Contract Administrator of the
discovery of any designated noxious weeds.
Add 1.3.3
Ensure that no equipment is working within 3
metres of the area containing designated noxious
weeds.
1.4.3 Pollution
Control
Add 1.4.3.5
Immediately contain and clean up any leaks and
spills of prohibited materials at the Place of Work.
Add 1.4.3.6
Ensure that a well-stocked spill kit is on-site at all
times and that the Contractor's employees are
familiar with appropriate spill response techniques.
Add 1.4.3.7
Immediately notify the Contract Administrator and
the Owner of any leaks or spills of prohibited
materials that occur at the Place of Work.
Add 1.4.3.8
Ensure that any fuel stored on-site is located at
least 30 metres from the nearest watercourse, and
is placed within a bermed and lined area, in order
to prevent leaks or spills into the environment.
Add 1.4.3.9
Ensure that no equipment fueling or servicing is
conducted within 30 metres of a watercourse.
1.9
Archaeological /
Historical
Resources
Add 1.9
Immediately cease work and inform the Contract
Administrator, if any archaeological or historical
resources are encountered during construction.
Leave these resources in place and do not disturb
them in any way.
2.0
PRODUCTS
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 19
MMCD Section 01 58 01S
Project Identification
1.0
GENERAL
1.2
Temporary
Project Signage
Delete 1.2.1.1
and replace with
the following:
Provide and erect, after the pre-construction
meeting and prior to commencing work on the site,
a project information sign in a location approved by
the Owner.
Append to
1.2.1.3
Show on development sign: name and phone
numbers of Owner, Contract Administrator and
Contractor in minimum 63 mm high Helvetica
Medium lettering with 25 mm spacing, site plan
occupying approximately half of the area of the
sign, showing the Development site in bold outline
in relation to the surrounding area.
Add 1.2.6
Contractor to provide and erect signage for
"Permitted Construction Activity Hours". Template
of sign will be provided at time of Highway Use
Permit issuance.
2.0
PRODUCTS
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 20
Division 03 - Concrete
MMCD Section 03 30 20S
Concrete Walks, Curbs and Gutters
1.0
GENERAL
1.4
Measurement
and Payment
Delete 1.4.8 and
replace with the
following:
Payment for adjustment of existing catchbasins,
inspection chambers, valve boxes and other utility
covers required for installation of curb & gutter and
walks will be made by lump sum. Adjustment for
manholes will be paid separately based on type of
adjustment made.
2.0
PRODUCTS
3.0
EXECUTION
3.9
Expansion
Joints
Delete 3.9.4 and
replace with the
following:
Do not use bond break compounds in lieu of
expansion joint between back of curb and
sidewalk.
3.19
Adjustment of
Existing Utility
Covers
Add 3.19.1
Steel riser rings for manholes are not accepted.
Manholes are to be adjusted by removing frame
and cover.
Add 3.19.2
Certain utility companies may require that their
forces adjust their utilities. The Contractor shall be
responsible to contact and coordinate with these
utility companies. No additional compensation
shall be given to the Contractor for this
coordination.
MMCD Section 03 30 53S
Cast-In-Place Concrete
1.0
GENERAL
2.0
PRODUCTS
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 21
3.0
EXECUTION
3.2
Formwork
Add 3.2.4
Formwork for greenway trails and in parks shall be
inspected by the Manager of Green Infrastructure
Services prior to pouring concrete.
A minimum of 72 hours' notice shall be given prior
to required inspection.
Division 26 - Electrical
MMCD Section 26 56 01S
Roadway Lighting
1.0
GENERAL
1.3
Shop Drawings
Append to 1.3.4
... registered in British Columbia.
1.5
Contractor
Qualifications
Add 1.5.3
All on-site traffic signal installations shall be under
the responsibility of a primary journeyman
electrician with IMSA Level 1 Roadway Lighting
Certification and have a minimum of three (3)
years' experience maintaining and installing street
lighting systems. This primary journeyman
electrician is expected to be on the work site and
report work progress to the Contract Administrator.
2.0
PRODUCTS
2.1
General
Delete 2.1.2 and
replace with the
following:
All products supplied to be new, in accordance
with Contract Documents. All products are to meet
Canadian Electrical Code requirements and be
certified by either CSA, UL©, or Intertek Testing
Systems (Warnock Hersey) and be supplied with
the certifier's label.
Delete 2.1.3 and
replace with the
following:
All products shall be in accordance with the
Township of Langley's "List of Approved Materials
and Products". Any products not listed with in the
Approved List shall default to the current BCMOTI
specification.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 22
Delete 2.1.5 and
replace with the
following:
Equipment models listed within the Township of
Langley's List of Approved Materials and Products
shall be confirmed with the Township immediately
prior to their order to ensure that they are current.
Cut-sheets, equipment make, model and serial
number list to be provided to the Township by the
Contractor.
2.6
Concrete Bases Add 2.6.2
Maximum of four (4) conduits shall enter the base
of a luminaire pole; however, more than four (4)
may enter a service base.
2.8
Conductors and
Cables
Add 2.8.5
.1 Minimum conductor size to be as follows,
unless specified otherwise on Contract
Drawings:
.1
No 6 AWG for feeder conductors in
conduit.
.2
No 8 AWG for bond conductors in
conduit.
.3
No 12 AWG for luminaire conductors in
poles.
2.13
Receptacles
Add 2.13.3
Receptacles shall have a spring loaded cast "in
use" aluminum covers.
2.14
Luminaires
Add 2.14.6
Refer to the Township of Langley's List of
Approved Materials and Products.
2.19
Service Panels
Add 2.19.1
Type 40A 120/240V, 60A 120/240V roadway
lighting and 100A 120/240V combination roadway
lighting / traffic signal, per Contract Drawings to
include items listed within the 2009 MMCD Section
34 41 13 - Traffic Signals - 2.11.2
2.20
Wire Anti-Theft
Devices
Add 2.20.1
Handhole access shall utilize "Wire Sentry" type
device or equivalent.
3.0
EXECUTION
3.3
Concrete Bases
Add 3.3.7
Contrary to Standard Detail Drawing E7.3, the
position of the 53mm RPVC conduit for service
and 35mm RPVC conduit for street lighting shall
be reversed.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 23
3.5
Underground
Conduit
Delete 3.5.5 and
replace with the
following:
Empty conduits shall have a No. 8 HB
Yellow/Green Mk pull string and capped at both
ends.
Add 3.5.6
Conduits shall be blown out with compressed air,
from both ends if necessary, then swabbed out to
remove stones, dirt, water and other material
which may have entered during installation.
Add 3.5.7
Conduit depth of bury to be recorded when a
trenchless technology method is used.
Add 3.5.8
Conduit shall not be bent in the field. Only factory
bends will be accepted.
3.8
Wiring
Delete 3.8.3 and
replace with the
following:
Make conductor splices in handholes. See
Standard Detail Drawing E7.11 for splice details.
Delete 3.8.6 and
replace with the
following:
Wire each luminaire and receptacle separately
from the base of pole.
Delete 3.8.7 and
replace with the
following:
Neatly arrange and bundle wiring in junction
boxes, pole handholes and service panels.
Conductor connections in all access points to be
installed in the upright position, allowing for easy
access
Delete 3.8.11
and replace with
the following:
Bond all luminaires and receptacles with No. 12
RW90 green conductor, and steel junction box lids
with No. 8 RW90 green conductor.
3.10
Luminaires and
Photocells
Add 3.10.4
NEMA wattage label shall be visible at the bottom
of the luminaire on all fixtures.
3.11
Grounding and
Bonding
Add 3.11.5
Remove all paint around bonding studs on inside
of pole to expose the galvanized or metal surface
prior to bonding equipment.
3.13
Pole Finish
Application
Delete 3.13 and
replace with the
following:
.1 Prior to producing a powder finish product the
supplier must provide a Certificate of
Compliance indicating that they have met or
exceeded the following specifications. The
supplier will name their independent testing
agency and this information will be submitted
to the Municipality.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 24
.2 The application process will be as follows:
.1
The pole or product will be hot dip
galvanized.
.2
Powder will only be applied after the
product is completely fabricated. No
welding or bending will take place after
the powder is applied.
.3
The pole or product will be thoroughly
cleaned by brush blasting in accordance
with SSPC-SP7. The brush blast will
maintain a minimum profile of 0.5 mils. If
brush blasting is done off site then the
product will be covered and shielded
from any dirt or moisture during its return
to the powder applicator's facility. Where
poles or products are not kept clean and
dry or have any signs of flash rust they
will be returned for further brush blasting.
.4
Once at the applicator's facility the pole
or product will be thoroughly cleaned and
dried with an air gun. All hand marks or
grease spots will be cleaned with a mild
solvent.
.5
After brush blasting, the entire pole or
product will be pre-baked in an oven at
220 degrees C for at least 30 minutes to
1 hour, depending on steel thickness.
The pre-baking must be done to prevent
out-gassing during the curing cycle.
.6
The base powder coat will then be
applied electrostatically while the pole or
product is cooling from the 220 degrees
C pre-bake period to allow the powder to
melt and fuse to the surface. The base
coat will be a minimum of 3 mils in
thickness.
.7
After base coat is applied and set the
topcoat will be applied to a thickness of 3
to 5 mils. The pole or product will be
returned to the oven and heated to 190
to 220 degrees C (temperature will not
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 25
exceed pre-bake) for a minimum of 25
minutes, depending on steel thickness.
Thicker product material may require
longer bake cycles to fully cure. Upon
removal of the pole or product from the
oven it will be left to rest until the pole or
product is cool enough to touch.
.8
Once the topcoat has cured and the
poles or product cooled, they will then be
individually wrapped (min. 4" overlapping
method) with 1/8" foam wrap over the
entire pole or product. The poles or
product will be bundled together and
separated with suitable wood dunnage to
avoid contact between the poles,
products or other bundles. All bundles
themselves will be fully wrapped with
foam and with stretch-wrap as noted
above. The poles or products will be
handled and shipped with great care to
prevent damage; damaged product will
be cause for rejection of the item(s).
.3 Testing process will be as follows:
.1
Each run of product in an oven will have
at least one sample tested for:
.1 Adhesion - The finished powder
surface will have minimum pull-off
strength exceeding 1000 PSI as tested
in accordance with ASTM D4541.
.2 Quality - The finished powder surface
will be free from any holidays (skips or
misses) as tested in accordance with
ASTM D4541. The product will also be
free from wrinkles, orange peel,
cracking, pinholes, fish eyes, blisters,
etc. by visual inspection.
.3 Colour - The colour will be verified to
be within 3 DE of specialized colour.
.4 An independent testing firm who are
qualified to test powder finish will do
the testing at the supplier's expense.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 26
The result of tests must accompany
the Certificate of Compliance and will
be made available to the Township or
their representative upon request. A
supplier who fails to test product as
noted above will have their product
rejected until the testing is completed
and the product deemed acceptable by
the testing agency.
.5 Where the tested product fails on a
given production run then a minimum
of 30 % of the entire production run will
be tested. If no other failures are found
then the individual failed product will be
stripped, reapplied and re-tested until it
passes. If any of the 30% of product
tested fails then the entire order will be
stripped, reapplied and retested until it
passes.
.4 Field repairs will be undertaken as required to
fix any scratches or imperfections in the final
finish. Field repairs will be done as follows:
.1 Feather the damaged area with sandpaper.
.2 Clean area with solvent.
.3 Let dry.
.4 Neatly brush on an application of Aliphatic
Urethane Acrylic Semi-Gloss High Build
applied at 2-4 mils DFT over the entire
sanded and damaged area. The ambient
conditions will be dry and over 10 degrees
C when the paint is applied.
.5 The pole supplier will warranty the integrity
of the surface for a minimum of 1 year from
the date of installation. The warranty will
include all labour and materials required to
provide replacement product if required.
The powder finish will be the responsibility
of the pole supplier. The warranty will apply
to fading, blistering, cracking or chipping of
the surface.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 27
Division 31 - Earthworks
MMCD Section 31 11 01S
Clearing and Grubbing and Mass Excavation
1.0
GENERAL
Delete 1.0.1 and
replace with the
following:
Section 31 11 01S refers to those sections of the
work that are unique to clearing, grubbing and
Mass Excavation. This section must be referenced
to and interpreted simultaneously with all other
sections pertinent to the works described herein.
1.2
Definitions
Add 1.2.5
Mass Excavation consists of removal and disposal
offsite of all above ground and underground
structures including pipes, asphalt (regardless of
thickness including layered sections), concrete,
reinforced concrete.
1.4
Measurement
and Payment
1.4.3
Payment for Mass Excavation will be made in
Lump Sum.
Clearing and Grubbing in MMCD Section 31 11 01
will be included in this payment. This price shall
also include rough grading, loading, shaping,
hauling and disposal of material, pavement
removal, concrete curb and gutter cutting and
removal, median concrete curb cutting and
removal, concrete surface cutting and removal,
removal of signs, sod cutting and storage or
removal. This payment covers all mass excavation
carried out under roadways, sidewalks, curbs,
driveways, drainage, water and sanitary works,
street lights, traffic lights and structural works of
the Contract.
2.0
PRODUCTS
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 28
MMCD Section 31 11 41S
Shrub and Tree Preservation
1.0
GENERAL
2.0
PRODUCTS
2.1
Materials
Add 2.1.10
Protective Fencing: Posts - Pressure treated wood
100 mm dia.; Post to be 1.8 metres to 2.0 metres
in height at 2.0 metres O.C. Snow fence as per
Approved Products List;
Add 2.1.11
Flagging Tape - 100 millimeter Orange glow -
'Tree Retention Area'.
3.0
EXECUTION
3.1
Existing Trees
Delete 3.1.1 and
replace as
follows:
Inspect with Contract Administrator and clearly
identify on site all shrubs and trees that are to be
preserved.
Place protective fencing / barricades, prior to
commencement of construction, as detailed on the
Tree Protection Plan, and maintain fence in good
condition during construction.
Add 3.1.7
The Contractor is responsible for damage to trees
which are to remain.
Add 3.1.8
The Contractor will be responsible for all claims
and costs including the cost of examination by an
Arborist, repair, removal and replacement of trees,
as required by the Arborist and the Contract
Administrator for tree damage where proper
notification was not received from the Contractor.
Damage will be assessed based on the
International Society of Arboriculture Guidelines.
The term shall be for a period of one year following
the date of Total Performance of the Work.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 29
Add 3.1.9
When work is to be performed inside fenced areas,
the Contractor shall take care to avoid damage to
existing vegetation. Work to be done inside areas
of existing vegetation to be retained includes:
.1 Removal of isolated trees as directed by the
Landscape Architect.
.2 Selective pruning and tree removal at edges to
create tidy and well-shaped forest edge.
.3 Placing planting soil and planting of trees.
Add 3.1.10
Do not park, service or fuel vehicles within the
vegetation retention areas.
3.2
Raising Grade
Around
Delete 3.2
3.3
Lowering Grade
Around Existing
Trees
Delete 3.3.2 and
replace with the
following:
Landscape architect or certified arborist to
supervise work if excavation through roots is
required. Excavate by hand and cut roots with
sharp ax, tree lopper or saw. Landscape Architect
or Certified Arborist to advise if additional or
alternate measures are required.
3.4
Pruning
Delete 3.4.1 and
replace with the
following:
Prune as directed by Landscape Architect or
Certified Arborist.
Add 3.4.2
Do not cut roots or branches of retained trees
without approval of an ISA Certified Arborist or the
Landscape Architect.
3.5
Clean-Up
Add 3.5.3
Remove by hand, not machine, invasive weed
species including blackberry and ivy, and remove
litter.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 30
MMCD Section 31 23 01S
Excavating, Trenching and Backfilling
1.0
GENERAL
1.7
Disposal
Add 1.7.2
Surplus spoil from excavations may only be placed
on Lands within the Township where the property
owner is in possession of a valid soil deposit
permit issued by Township staff as per the current
Township of Langley Soil Deposit and Removal
Bylaw and the current Township of Langley Soil
Deposit & Removal Policy.
1.8
Limitations of
Open Trench
Delete 1.8.1 and
replace with the
following:
Excavate trenches only as far in advance of pipe
laying operation as safety, traffic, and weather
conditions permit and, in no case, to exceed 30
metres. Before stopping work each day completely
backfill and pave every trench on or adjacent to
roadways. All other trenches to be completely
backfilled before stopping work on last day of work
before each weekend or holiday.
2.0
PRODUCTS
3.0
EXECUTION
MMCD Section 31 24 13S
Roadway Excavation, Embankment and Compaction
1.0
GENERAL
2.0
PRODUCTS
2.2
Specified
Materials
Delete 2.2.1 and
replace as
follows:
Backfill for embankment fill (subgrade fill) to be
approved native, imported granular material or pit
run gravel.
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 31
Division 32 - Road and Site Improvements
MMCD Section 32 11 16.1S Granular Sub-base
1.0
GENERAL
2.0
PRODUCTS
2.1
Specified
Materials
Delete 2.1.1 and
replace with the
following:
Material for road sub-base to be:
.1 Crushed granular sub-base.
.2 Select granular sub-base.
3.0
EXECUTION
MMCD Section 32 12 16S
Hot Mix Asphalt Concrete Paving
1.0
GENERAL
1.6
Inspection and
Sting
Add 1.6.3
The frequency of Marshall tests shall be one test
for each asphalt type, minimum one per day per
site / location.
Add 1.6.4
For road paving, core locations will be selected for
each pass of the paving machine as follows:
.1 Across width, core locations will be staggered
on each side of the road centerline.
.2 Along length, core locations should be spaced
evenly every 50 metres, with a minimum of 3
core samples required for lengths shorter than
150 metres.
Add 1.6.5
For other paving operations, a minimum of one
core for every 500 square metres of asphalt mix
placed. For areas less than 1500 square metres, a
minimum of 3 cores will be required.
Add 1.6.6
Core holes to be reinstated with hot mix asphalt.
2.0
PRODUCTS
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 32
3.0
EXECUTION
3.7
Joints
Delete 3.7.5 and
replace with the
following:
Construct butt joints at locations as shown on the
Contract Drawings and as directed in the field by
the Contract Administrator.
3.9
Sidewalks,
Driveways and
Curbs
Add 3.9.6
Hand tamp a 45 degree bevel on edges of trails for
a smooth durable finish.
MMCD Section 32 17 23S
Painted Pavement Markings
1.0
GENERAL
2.0
PRODUCTS
3.0
EXECUTION
3.3
Application
Delete 3.3.2.3
and replace with
the following:
Paint shall be applied at a rate of not less than
28.25 litres per kilometre per 100 mm width line,
thinner not included.
Delete 3.3.2.8
and replace with
the following:
Glass beads shall be applied at a minimum rate of
17 kg beads per kilometre for 100 mm wide single
solid line.
MMCD Section 32 31 13S
Chain Link Fences and Gates
1.0
GENERAL
2.0
PRODUCTS
2.1
Materials
Delete 2.1.1 and
replace with the
following:
Fencing, posts, rails, and fabric shall be
constructed as indicated on the Contract Drawings
and Specifications herein.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 33
Delete 2.1.3 and
replace with the
following:
Chain-link fence fabric as per Township of Langley
Standard Drawing - TLP 07
Delete 2.1.4.1
and replace with
the following:
All post and rail sizes as per Township of Langley
Standard Drawing - TLP 07
Delete 2.1.4.2
Delete 2.1.4.3
Delete 2.1.4.4
Delete 2.1.5
Delete 2.1.6 and
replace with the
following:
Tie wire fasteners as per Township of Langley
Standard Drawing - TLP 07
Delete 2.1.7 and
replace with the
following:
Tension bar as per Township of Langley Standard
Drawing - TLP 07
Delete 2.1.8 and
replace with the
following:
Tension bar bands as per Township of Langley
Standard Drawing - TLP 07
Delete 2.1.12
Delete 2.2.1.1
Add 2.1.13
Connections: Fence connections to be welded
construction and radius-cut.
3.0
EXECUTION
3.2
Installation of
Fence
Delete 3.2.2 and
replace with the
following:
Excavate post holes to dimension shown on
Township of Langley Standard Drawing - TLP 07
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 34
Delete 3.2.8 and
replace with the
following:
Place concrete in post holes then embed posts into
concrete to depths shown on Township of Langley
Standard Drawing - TLP 07. Extend concrete
40mm above ground level and slope to drain away
from posts. Brace to hold posts in plumb position
and true to alignment and elevation until concrete
has set.
Delete 3.2.12
and replace with
the following:
Weld top rail and bottom rail between posts and
terminal posts. Spot weld overhanging waterproof
dome caps to terminal and corner post tops.
Delete 3.2.15
and replace with
the following:
Secure fence fabric to top rails, line posts, and
bottom rails as detailed on Township of Langley
Standard Drawing - TLP 07. Give tie wires
minimum two (2) twists.
Delete 3.2.16
Add 3.2.17
Install asphalt apron (mow strip) under all fencing
located in grass areas in accordance to the
Township of Langley Standard Drawing - TLP 07.
3.3
Touch Ups
Add 3.3.1
Clean all welded and damaged surfaces with wire
brush removing loose and cracked coatings. Apply
two coats of organic zinc-rich paint to cleaned
surfaces. Pre-heat damaged surfaces according to
manufacturer's instructions for zinc-rich paint.
3.4
Cleaning
Add 3.4.1
Clean and trim areas disturbed by operations.
Dispose of surplus material as specified in Contract
Documents.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 35
MMCD Section 32 91 21S
Topsoil and Finish Grading
1.0
GENERAL
1.1
Related Work
Add 1.1.6
Shrubs & Tree Preservation - Section 31 11 41S
2.0
PRODUCTS
2.10 Growing
Medium
Delete 2.10.2
and replace with
the following:
Growing medium shall be screened, weed free,
composted soil mixed according to BC Landscape
Standards for the intended use and confirmed with
a soil analysis report.
3.0
EXECUTION
3.4
Placing Growing
Medium
Delete Table 3
and replace with
the following:
Lawn
150 mm
Ground Cover
300 mm
Shrubs
450 mm
Trees
10 m3
Add 3.4.6
Scarify soil, feather grades and remove noxious
weeds from the edge of tree preservation areas.
3.7
Acceptance
Delete 3.7.1 and
replace with the
following:
The Contractor will test growing medium in place
by means of independent laboratory analysis to
confirm conformance to specifications. All test
results to be submitted to the Contract
Administrator.
Add 3.7.2
All soil depths to be inspected by the Owner for
approval.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 36
MMCD Section 32 92 19S
Hydraulic Seeding
1.0
GENERAL
1.1
Related Work
Add 1.1.6
Irrigation - Section 32 93 02S
Add 1.1.7
Landscaping Establishment Maintenance -
Section 32 93 03S
2.0
PRODUCTS
2.1
Grass Seed
Delete 2.1.2 and
replace with the
following:
Seed mixtures to be approved by Contract
Administrator in the original packaging. The seed
mixture shall be made up from a minimum of three
(3) varieties of Perennial Rye, two (2) varieties of
Kentucky Blue Grass and three (3) varieties of
Fescue from the following approved varieties:
60% Perennial Rye Grass: Elka; Saturn;
Barclay; Omega II
25% Chewing Fescue:
Cindy; Enjoy; Koket
15% Kentucky Blue Grass: Shamrock;
Geronimo, Merit
3.0
EXECUTION
3.2
Seeding-
General
Append to 3.2.2
For hydraulically seeded grass lawn, proportions
of seed and fertilizer shall be to the supplier's
specifications or as follows, per ha:
Turf Seed
225 kg
Mulch
225 kg
Tackifier
70 kg
Fertilizer (19-19-19) 225 kg
Water
10,000 l
3.8
Grass
Maintenance
Delete 3.8 and
replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
3.9
Conditions for
Total
Performance
Delete 3.9
3.10
Guarantee /
Maintenance
Delete 3.10 and
replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 37
MMCD Section 32 92 20S
Seeding
1.0
GENERAL
1.1
Related Work
Add 1.1.6
Irrigation Section 32 93 02S
Add 1.1.7
Landscaping Establishment Maintenance -
Section 32 93 03S
2.0
PRODUCTS
2.1
Grass Seed
Delete 2.1.2 and
replace with the
following:
Seed mixtures to be approved by Contract
Administrator in the original packaging. The seed
mixture for boulevard and landscaped areas shall
be made up from a minimum of three varieties of
Perennial Rye, two varieties of Kentucky Blue
Grass and three varieties of Fescue from the
following approved varieties:
60% Perennial Rye Grass: Elka; Saturn;
Barclay; Omega II
25% Chewing Fescue:
Cindy; Enjoy; Koket
15% Kentucky Blue Grass: Shamrock;
Geronimo; Merit.
3.0
EXECUTION
3.2
Seeding -
General
Delete 3.2.3 and
replace with the
following:
Seeding operations shall be carried out in the
following calendar seasons;
.1
Spring (April 1st to June 15th)
.2
Fall (August 15th to September 30th)
.3
Seeding shall not take place during periods
of rain, freezing and/or abnormally hot and dry
weather.
Delete 3.2.2 and
replace with the
following:
Rates of application of seed and fertilizer shall be
to the supplier's specifications or as follows, per
ha:
Turf Seed
225 kg.
Fertilizer (19-19-19) 225 kg.
3.6
Grass
Maintenance
Delete 3.6 and
Replace with the
As per section 32 93 03S Landscaping
Establishment Maintenance.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 38
following:
3.7
Conditions for
Total
Performance
Delete 3.7
3.8
Guarantee /
Maintenance
Delete 3.8 and
Replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
MMCD Section 32 92 23S
Sodding
1.0
GENERAL
1.1
Related Work
Add 1.1.6
Irrigation - Section 32 93 02S
Add 1.1.7
Landscaping Establishment Maintenance -
Section 32 93 03S
2.0
PRODUCTS
3.0
EXECUTION
3.1
Finish Grade
Preparation
Add 3.1.6
Ensure finish grading within 15 mm of design
elevation but not uniformly high or low.
Add 3.1.7
Ensure finished grade does not have irregularities
exceeding 25 mm when checked with a 3m
straight edge placed in any direction.
3.2
Sodding
Delete 3.2.5 and
replace with the
following:
Lay sod smooth and flush with adjoining grass
areas and paving and top surface of curbs unless
shown otherwise on the Contract Drawings or as
accepted by the Owner. Ensure there is a full roll
width between the new sod and adjoining
surfaces. Small cut pieces from a full roll shall not
be accepted.
Add 3.2.13
Do not allow the sod to dry out so that the joints
become visible.
3.4
Grass
Maintenance
Delete 3.4 and
Replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 39
3.5
Condition for
Total
Performance
Delete 3.5
3.6
Guarantee /
Maintenance
Delete 3.6 and
Replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
MMCD Section 32 93 01S
Planting of Trees, Shrubs and Ground Covers
1.0
GENERAL
Delete 1.0.1 and
replace with the
following:
Section 32 93 01 refers to those portions of the
Work that are unique to the sourcing, supplying,
placing and maintaining of the plant material
indicated on the Contract Drawings and the Plant
List(s). This section must be referenced to and
interpreted simultaneously with all other sections
pertinent to the Work described herein.
1.1
Related Work
Add 1.1.6
Shrubs & Tree Preservation Section 31 11 41S
Add 1.1.7
Irrigation
Section 32 93 02S
Add 1.1.8
Landscaping Establishment Maintenance
Section 32 93 03S
2.0
PRODUCTS
2.4
Mulch
Amend 2.4.1
Add "composted" after "bark mulch to be..."
2.5
Stakes
Delete 2.5.1 and
replace with the
following:
Stakes as per Township of Langley Standard
Drawing - TLP 25.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 40
3.0
EXECUTION
3.3
Planting
Delete 3.3.3 and
Replace with the
following:
Location of Planting: Plant trees as shown on
the Contract Drawings and according to the
Township of Langley Standard Drawing TLP 24 -
Tree Planting Notes, unless approved by the
Contract Administrator. Tree numbers, spacing
and locations will vary according to site
conditions and amenities. Stake locations as
shown on Contract Drawings and according to
the Township of Langley Standard Drawing TLP
24 - Tree Planting Notes and verify with the
Contract Administrator prior to planting. If
underground obstructions are uncovered, report
to the Contract Administrator for resolution.
3.9
Maintenance
Delete 3.9 and
Replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
3.10
Conditions for
Total
Performance
Delete 3.10
3.11
Guarantee /
Maintenance
Delete 3.11 and
Replace with the
following:
As per section 32 93 03S Landscaping
Establishment Maintenance.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 41
3.12
Conditions for
Substantial
Landscape
Performance
Add 3.12.1
The Contract Administrator shall issue a
Certificate of Landscape Substantial Completion
only when the following conditions exist:
.1
Growing Medium quality, fertility levels,
depths and surface conditions are as
specified.
.2
All plants of species and varieties specified
and planted in locations shown on Contract
Drawings.
.3
All plants are healthy and turgid.
.4
Water content in growing medium is to the
satisfaction of the Contract Administrator.
.5
All trees are staked as specified.
.6
All pruning is complete to the satisfaction of
the Contract Administrator.
.7
All planted areas are free of weeds
.8
Mulch is in place as required.
.9
Specified un-mulched areas are cultivated
to leave a loose, friable, water- permeable
surface.
.10
Specified maintenance procedures have
commenced.
3.13
Conditions for
Total
Landscape
Performance
Add 3.13.1
As per section 32 93 03S Landscaping
Establishment Maintenance.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 42
MMCD Section 32 93 02S
Irrigation
1.0
GENERAL
.1
Section 32 94 01SS refers to those portions of
Work that are unique to the supply and installation
of sleeves, mainlines, lateral lines, electronic
control valves, sprinklers, controllers, and all
related items necessary to provide a properly
operating automatic irrigation system to cover all
the applicable landscapes. This Section must be
referenced to and interpreted simultaneously with
all other sections pertinent to the Work described
herein.
.2
All details not specifically covered in this Section
shall comply with the respective AWWA
standards, the BC Building Code (current edition)
Part 7 - Plumbing Services and/or manuals of
practice as specified in these Contract
Documents.
1.2
Related Work
.1
Concrete Reinforcement - Section 03 20 01
.2
Cast-in-Place Concrete - Section 03 30 53
.3
Aggregates and Granular Materials - Section 31
05 17
.4
Excavating, Trenching and Backfilling - Section
31 23 01
.5
Topsoil and Finish Grading - Section 32 91 21
.6
Seeding - Section 32 92 20
.7
Sodding - Section 32 92 23
.8
Planting of Trees, Shrubs and Ground Covers -
Section 32 93 01
.9
Manholes and Catch Basins - Section 33 44 01
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 43
1.3
Reference
.1
The Standards for Landscape Irrigation Systems
(current edition) shall be the minimum standard
for construction except for the modifications
and/or additions specified in this section.
.2
ASTM D1248 - High Density Polyethylene
(HDPE) Pipe.
.3
ASTM D2241 - Polyvinyl Chloride (PVC) Plastic
Pipe (SDR-PR).
.4
ASTM D2564 - Solvent Cement for Poly (Vinyl
Chloride) (PVC) Plastic Pipe and Fittings.
.5
BC Building Code (current edition) Part 7 -
Plumbing Services.
.6
B.C.W.W.A Cross Connection Control Manual.
1.4
Qualifications
.1
The Contractor shall be a member in good
standing of the Irrigation Industry Association of
British Columbia (IIABC) or the Irrigation
Association.
.2
The Contractor shall employ personnel familiar
with proper irrigation procedures, under the
supervision of a qualified foreman.
.3
The double check valve assembly and meter shall
be installed and tested by a mechanical
Contractor licensed to perform the work in British
Columbia.
.4
The Contractor shall be certified in Low-Voltage
Electrical Wiring as certified by the British
Columbia Institute of Technology or approved
equivalent.
.5
The Contractor shall be certified in Plastic Pipe
Fusion by the British Columbia Institute of
Technology or an approved equivalent.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 44
2.0
PRODUCTS
2.1
Material
Certification
.1
Products having CSA certification to be used
where available. Otherwise, certification by a third
party accredited by the Standards Council of
Canada that products conform to CSA standards
is acceptable in lieu of CSA certification.
2.2
Substitutions
.1
Substitutions shall only be permitted with an item
of equal or better quality and performance than
originally specified and only with the written
approval of the Owner. Substitute sprinkler heads
shall be considered only when the performance
by delivery, pressure, diameter and spacing are
all equal to the product originally specified.
2.3
Back-flow
Preventer
.1
Double check back-flow preventer valves shall be
to CSA B64.5. The back-flow preventer must
have brass ball valves on either side for isolation
and testing. All exposed pipe and fittings shall be
brass. Installation shall be as shown on
supplementary drawings.
2.4
Pipe
.1
Pipe shall be PVC 1120 or 1220, Class 200,
Class 160 or as indicated on the drawings.
.2
Pipe shall bear no evidence of interior or exterior
extrusion marks and pipe walls shall be uniform,
smooth and glossy. Pipe may be pre-belled or
with individual, solvent-weld couplings and must
conform to ASTM 2241, SC 25663 and SCA B-
137-3 specifications.
2.5
Plastic Pipe
Fittings and
Nipples
.1
Plastic pipe fittings to be installed shall be molded
fittings manufactured of the same material as the
pipe and shall be suitable for solvent weld, slip
joint ring tight seal, thermo-fusion or screwed.
.2
Nipples and fittings shall be schedule 40 PVC
unless otherwise designated on the standard
detail drawings.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 45
2.6
PVC Solvent
Connections
.1
Solvent and primers shall be in accordance with
manufacturer's specifications for type of pipe
used.
2.7
Brass Pipe and
Fittings
.1
Brass pipe and fittings shall be schedule 40.
2.8
Isolation Valves
.1
As per Schedule D - Landscape Approved
Product List.
2.9
Control Valves
.1
As per Schedule D - Landscape Approved
Product List.
2.10
Quick Coupling
Valves
.1
As per Schedule D - Landscape Approved
Product List.
2.11
Valve Boxes
.1
As per Schedule D - Landscape Approved
Product List.
.2
Quick connect valves and manual gate valves
shall be installed in #1419 style valve boxes.
.3
Mainline supply shutoff valves and winterization
valves shall be installed in #1730 style valve
boxes.
.4
Valve boxes to be all from one manufacturer.
2.12
Sprinkler Risers .1
All motor pop-up sprinklers shall have an
adjustable riser assembly (triple swing joint riser)
assembled by the use of at least three (3)
standard 90 degree street elbows as
recommended by the sprinkler manufacturer
and/or as shown on the standard detail drawings.
.2
All sprinkler heads to be installed on Schedule 80
PVC nipples and with 2 PVC street elbows
connection nipple to lateral line. Use of Marlex
street elbows is not acceptable.
.3
Other nipples of the swing joint riser shall be the
size and length required for proper installation of
the sprinkler head, drain valve and/or automatic
control valve.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 46
2.13
Swing Joints
.1
As per Schedule D - Landscape Approved
Product List
2.14
Sprinkler Heads .1
Sprinkler head shall be of the types and sizes with
the diameter of radius of throw, pressure and
discharge. All heads of a particular type and for a
particular function in the system shall be of the
same make and model with identifying markings
in such a position that they can be identified
without being removed from the system.
2.15
Automatic
Controller
.1
As per Schedule D - Landscape Approved
Product List
.2
Automatic controllers located outside shall be
encased in a sturdy, lockable, weatherproof
aluminum mounting box.
2.16
Wiring
.1
Wiring to be used for connecting the automatic
controllers shall be solid copper conductor
installed in accordance with BC Electrical Code.
2.17
Moisture / Rain
Sensor
.1
As per Schedule D - Landscape Approved
Product List.
3.0
EXECUTION
3.1
General
.1
Location and installation shall be in accordance
with the Contract Drawings.
3.2
Trench
Excavation
.1
Trenching shall be in accordance with MMCD
section 31 23 01.
.2
Minimum 300 mm of cover shall be provided for
all lateral piping and 450 mm for all mainline
piping.
.3
Bedding shall be on 150 mm sand across the full
width of trench.
3.3
Installation of
Pipe and
Sleeves
.1
PVC pipe ends shall be cut 90 degrees to the
pipe length and cleaned of all cutting burrs prior to
cementing, using an approved reaming tool. Pipe
ends shall be wiped clean with a rag lightly wetted
with PVC primer.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 47
.2
Cement shall be applied with a light coat on the
inside of the fitting and a heavier coat on the
outside of the pipe. Pipe shall be inserted into the
fitting and given a quarter turn to set the cement.
Excess cement shall be wiped from the outside of
the pipe.
.3
Threaded connections shall have four full wraps
of Teflon tape.
.4
PVC sleeves shall be installed for all lines under
paved areas and project 30 cm either side with a
minimum cover of 450 mm. Sleeves shall be twice
the pipe diameter of laterals and three times the
diameter of main lines.
.5
Main and supply lines may occupy same trench
as sprinkler lines. A minimum horizontal
clearance of 150 mm shall be maintained.
.6
Irrigation lines shall not cross each other at
angles of less than 45 degrees. Crossings shall
have a minimum 25 mm vertical clearance.
.7
Irrigation lines shall have a minimum horizontal
clearance of 300 mm and a minimum vertical
clearance of 150 mm from other services.
3.4
Installation of
Valves
.1
Valves shall be installed to manufacturer's
specifications in grade level prefabricated boxes
in accordance with the Accepted Drawing and
Supplementary Detail Drawings. Provision shall
be made for positive drainage away from the
valve box to prevent flooding. Valve box shall be
filled with 150mm depth of 9 - 16mm pea gravel
from below the level of the bottom of the valve.
3.5
Connection to
Municipal
System
.1
A water meter and backflow preventer and
irrigation mainline pipe shall be connected to the
downstream side of the municipal curb stop or
gate valve. The water meter shall be supplied by
the Owner without charge.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 48
3.6
Testing and
Inspection
.1
All equipment and connections shall be left
exposed but without installation of sprinklers until
after completion and acceptance of the pressure
test. One valve section may be tested at a time
provided the mainline has been previously tested.
The test section shall be charged with water,
capped and pressure tested at 0.69 MPA (100
psi) for 24 hours. All joints and connections shall
be checked visually for leaks. All leaks shall be
repaired, corrected and tested again. After
successful completion of pressure test of each
valve section, that section may be completely
backfilled.
3.7
Backfilling
.1
Prior to backfilling, all lines, valves and fittings
shall be inspected by the Contract Administrator
and the Owner.
.2
Backfilling shall be in accordance with MMCD
section 31 23 01 with sand around, and for 150
mm above the pipe and extending across the full
width of trench.
3.8
Controller
Installation
.1
Irrigation controllers shall be installed as shown
and located on the Contract Drawings. The
automatic controller shall be easily accessible for
maintenance.
3.9
Flushing
.1
The entire sprinkler irrigation system shall be
thoroughly flushed with water diverted to remove
all direct, scale, and foreign matter of any nature
before installing sprinkler heads.
3.10
Installation and
Adjustment of
Sprinkler Head
Locations
.1
Rotary sprinklers shall be installed to
manufacturer's specifications after all mains and
lateral lines have been thoroughly flushed and
tested. Flushing shall be accomplished in a
manner to insure adequate pressure and water
velocity at any head location being flushed. The
swing joints shall be snug and free from leaks.
Any joint evidencing leaking shall be removed, re-
taped and reinstalled. Where leaking continues on
any joint, the faulty nipples and/or elbow shall be
removed from the joint and not be re-used
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 49
elsewhere on the project.
.2
Spray heads shall be installed to manufacturer's
specifications on a Triple Swing Joint and set
flush with grade. Triple Swing Joint shall be
comprised of a minimum of three schedule 40
PVC Street Ells and one schedule 80 PVC Nipple
as per supplementary drawings. Joints shall be
hard hand tight and shall be wrapped with Teflon
tape or as otherwise indicated by manufacturer.
.3
Quick coupler valves shall be installed on swing
joint assemblies and set flush with grade. Swing
joint assembly shall be comprised of a minimum
of two schedule 40 PVC Street Ells elbow
(threaded), on schedule 40 PVC nipple (length to
suit), one brass threaded elbow, one brass
threaded street elbow, and one brass 150mm
riser.
.4
Changes in sprinkler head locations to ensure
adequate coverage shall be made as required by
the Landscape Architect.
.5
Sprinkler assemblies shall be carefully backfilled
and compacted to prevent settling. The sprinkler
heads shall be mounted flush to the ground to
prevent any damage from maintenance
equipment.
.6
Prior to first mowing of grass, sprinkler heads
shall be adjusted to be flush with finish grade or to
manufacturer's specifications.
3.11
Balancing
System
.1
The components of the sprinkler system shall be
balanced to maximize the efficiency of the system
by synchronization of the controllers, adjustment
of pressure regulators, pressure relief valves,
part-circle sprinkler heads and individual station
adjustment on the controllers.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 50
3.12
Final Inspection
and
Familiarization
.1
Upon completion of installation, flushing and
pressure testing, the Contractor shall operate the
system through a full cycle to the acceptance of
the Owner.
.2
The Contractor shall provide a Certified Irrigation
Technician to demonstrate the operation and
maintenance requirements of the system to
municipal staff.
3.13
Winterization
.1
The entire system shall be winterized at the end
of the first season. The main control valve is to be
closed and a hose from a 100 or 125 CFM
compressor shall be attached to a quick couple
valve on the downstream side of the backflow
preventer. Allow compressed air to flow into the
system and open each solenoid valve individually
to allow the water to be expelled from the system.
Valves must be opened at least twice to allow all
water to be expelled. After all water is expelled
from all portions of the system close off the air
supply and relieve air pressure from the system.
.2
Upon completion of winterizing, the Contractor
shall submit a letter to the Owner certifying the
system was winterized and drained and the date it
was accomplished. The Contractor shall be liable
for any damage resulting from failure to comply.
3.14
Start-Up
.1
The Contractor shall provide start-up of system
the following spring after winterization. The main
control valve shall be turned on and the system
allowed to fill slowly. Each zone valve shall be
opened individually and each sprinkler head
checked to confirm proper operation. The
irrigation controller shall be adjusted to the correct
time of day and appropriate watering time
required as directed by the Contract
Administrator. The system operation shall be
monitored and adjustments made as necessary to
ensure proper operation.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 51
3.15
Acceptance
.1
Upon acceptance of the system by the Owner, the
Contractor shall provide the keys and other tools
necessary to operate/drain/activate the system
and shall spend sufficient time with municipal staff
to ensure they can continue to operate and
maintain it properly.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 52
MMCD Section 32 93 03S
Landscaping Establishment Maintenance
1.0
GENERAL
1.0.1
The intent of "establishment" maintenance is to
define sufficient care to newly installed plant
material for a relatively short period of time to
ensure or increase the long-term success of the
planting. The objective is the adaptation of plants
to a new site in order to obtain the desired effect
from the planting while reducing the rate of failure
and unnecessary work associated with improper
establishment. Establishment maintenance
procedures apply to all vegetation including, but
not limited to, the following:
.1 New trees and shrubs.
.2 New grass and sod
1.1
Related Work
1.1.1
Hydraulic Seeding
Section 32 92 19S
1.1.2
Seeding
Section 32 92 20S
1.1.3
Sodding
Section 32 92 23S
1.1.4
Shrubs & Tree Preservation Section 32 93 01S
1.1.5
Irrigation
Section 32 93 02S
1.2
Reference
Standards and
Legislation
1.2.1
B.C. Landscape Standard latest Edition, jointly
published by the B.C. Society of Landscape
Architects and the B.C. Landscape and Nursery
Association, all Sections.
1.2.2
Related Standards and Legislation as listed in
Canadian Landscape Standard latest Edition,
Section 14.1, Maintenance, General.
1.2.3
All Contract Documents and Contract Drawings.
1.3
Site Review
1.3.1
Maintain a logbook recording all procedures and
operations at each visit and any comments
regarding conditions. Submit a monthly report to
the Owner's Representative using Form 14.5
Landscape Maintenance Monthly Report -
summarizing the operations and comments noted
in the logbook.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 53
1.4
Scheduling
1.4.1
Prepare a schedule of anticipated visits and
submit to designated representative at start-up.
The schedule shall be based on the B.C.
Landscape Standard Table 14-10;
RECOMMENDED MAINTENANCE
PROCEDURES & FREQUENCIES-
MAINTENANCE: Level 3, Moderate.
1.4.2
Maintenance operations shall be carried out
predominately during the growing season
between March 1 and November 30, however
visits at other times of the year are required.
1.5
Maintenance
Period
1.5.1
Provide maintenance of installed landscaping for
12 months following the issuance of the
Certificate of Landscape Substantial Completion.
1.6
Maintenance
Level
1.6.1
Maintain the landscape according to the B.C.
Landscape Standard, Section 13, Table 7,
Maintenance Level "3" Moderate.
2.0
PRODUCTS
2.1
Materials
2.1.1
As specified in the Contract Documents.
2.2
Fertilizers
2.2.1
Comply with the requirements of the B.C.
Landscape Standard. Formulations and
application rates as required by soil testing.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 54
3.0
EXECUTION
3.1
Plant Material
Establishment
3.1.1
Watering
.1
During the first growing season, water new
plants at least every ten (10) days between
April 1st and July 31st, and every twenty
(20) days between August 1st and
September 15th. Minimum 25 gallons per
tree per application. All tanks, hoses,
probes or other necessary equipment shall
be free of deleterious substances that can
cause injury or harm to plants or pose a
residual environmental risk in the soil.
.2
During the second growing season, water
new plants at least every twenty days
between April 1 and July 31 and once
between August 1 and September.
.3
Apply water at an application rate and
duration such that the water content
reaches field capacity to the full depth of
the growing medium. The next application
shall take place when the water content
reaches 25% of field capacity.
.4
Monitor soil moisture during the growing
season. Scheduled applications of water
shall be missed only when rainfall has
penetrated the soil fully as required.
3.1.2
Mulching
.1
Maintain mulches in the original areas and
to the original depths.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 55
3.1.3
Weed Control
.1
Comply with Table 14-7 Weed Control
Standard for the Maintenance Level
specified.
.2
Minimum Standard: Comply with B.C.
Landscape Standards, Table 14-7,
Maintenance Level 3, Moderate.
.1
Weed when isolated weed
patches have a width of 150 mm
(6").
.2
Weeding shall kill or remove 90%
of weeds.
.3
Frequency: Comply with B.C.
Landscape Standards, Table 14-
10. Remove all weeds from all
areas at least once per month
throughout the year, every two
weeks during the growing season
and more frequently in the spring,
as required, by hoeing or
cultivation to a maximum depth of
80mm or by hand-pulling.
3.1.4
Pest and Disease Control
.1
Inspect all planted areas for pests and
diseases periodically and at least every two
months during the growing season by an
experienced person. Carry out treatment
for pests or diseases promptly and
consistently for maximum effectiveness.
Comply with all B.C. Pesticide Control Act
and municipal requirements.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 56
3.1.5
Tree Support
.1
Maintain stakes, guy wires and ties as
shown in Township of Langley Standard
Drawing TLP 25. Check ties at least every
two months to ensure that they are not
causing a depression in the bark; loosen,
repair or replace as necessary. All flagging
of guy wires shall be visible and in good
repair.
.2
All tree plantings to be as shown in
Township of Langley Standard Drawing
TLP 25.
3.1.6
Pruning
.1
Comply with BC Landscape Standard
14.3.11
.2
Limit pruning to that necessary to remove
dead or injured branches and to correct
structural weakness.
.3
Maintain the natural shape of the plant.
3.1.7
Fertilizing
.1
Once during the twelve-month period of
establishment maintenance fertilize shrubs,
trees and groundcovers according to soil or
foliar tissue analysis requirements.
3.1.8
Litter and Debris
.1
Remove all litter and debris from all areas
during each site visit.
3.2
Establishment
of Grass Areas
3.2.1
Repairs
.1
Any sodded or seeded areas that show
deterioration or bare spots shall be
repaired immediately. All sodded areas
showing shrinkage due to lack of watering
shall be top dressed and seeded with a
seed mix that matches the original seed
mix, when conditions allow.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 57
3.2.2
Mowing
.1
Mowing shall be carried out at regular
intervals as required, to maintain grass at a
maximum height of 60 mm. Not more than
1/3 of the grass blade shall be cut at any
one mowing. Heavy clippings shall be
removed immediately after mowing and
trimming.
3.2.3
Watering
.1
Watering shall be carried out when
required and with sufficient quantities to
prevent grass and underlying soils from
drying out.
3.2.4
Weeds
.1
Weed control shall be carried out when
density of weeds reaches 25 broadleaf
weeds per 100 m2
.2
Weed control, whether manual or chemical,
shall reduce the density of weeds to zero.
3.2.5
Fencing
.1
All seeded or sodded areas shall be
adequately protected with warning signs,
temporary fencing or other necessary
means. Fencing shall be maintained in
good condition to provide a continuous
barrier until Final Acceptance at which
time, unless otherwise agreed in writing by
the Owner, fencing shall be removed from
the site.
3.2.6
Fertilization
.1
Fertilization application frequency will
comply with B.C. landscape Standards
Table 14-9 for the maintenance level
specified. Fertilizer formulation and
application rates as required by soil testing.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 58
3.3
Conditions for
Total
Landscape
Performance
3.3.1
Grass Areas - Sodded, Seeded and Hydraulic
Seeded
The Owner shall issue Certificate of Landscape
Total Performance only when following
conditions exist:
.1
Growing medium quality, fertility levels,
depths and surface conditions are as
specified in Contract Documents.
.2
Grasses are the required varieties and free
of varieties other than those specified.
.3
Grass areas are relatively free of weeds,
containing no more than two broadleaf
weeds or ten annual weeds or weedy
grasses per m2.
.4
Grass is sufficiently established that its
roots are growing into underlying growing
medium.
.5
Seeded areas have been mown at least
twice, to a height of 38 mm, last mowing
being within 48h of inspection for
acceptance.
.6
Grasses established in sufficient density
that no surface soil visible when mown to
height of 38mm.
.7
Specified maintenance procedures have
been carried out.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 59
3.3.2
Planted Areas - Trees, Shrubs, and
Groundcovers
The Owner shall issue Certificate of Landscape
Total Performance only when following
conditions exist:
.1
Growing medium quality, fertility levels,
depths and surface conditions are as
specified in Contract Documents.
.2
All plants of species and varieties specified
and planted in locations shown on Contract
Drawings.
.3
All plants are healthy and turgid.
.4
Water content in growing medium is to the
satisfaction of the Manager of Green
Infrastructure Services.
.5
All trees are staked as specified.
.6
All pruning is complete to the satisfaction of
the Manager, Green Infrastructure
Services.
.7
All planted areas are free of weeds.
.8
Mulch is in place as required.
.9
Specified un-mulched areas are cultivated
to leave a loose, friable, water- permeable
surface.
.10
Specified maintenance procedures have
been carried out.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 60
3.4
Guarantee /
Maintenance
3.4.1
Grass Areas - Sodded, Seeded and Hydraulic
Seeded
.1
Contractor to guarantee all materials and
workmanship for a period of one full year
from date of the issuance of the Certificate
of Total Landscape Performance unless
specified otherwise in Contract Documents.
.2
Guarantee includes replacing all seeded
areas determined by Owner to be dead or
failing at end of guarantee period.
Replacements to be made at next
appropriate season, and conditions of
guarantee will apply to all replacement
seeding for one full growing season.
.3
Guarantee will not apply to seeded areas
damaged after date of Total Landscape
Performance by causes beyond
Contractor's control, such as vandalism,
"acts of God", "excessive wear and tear", or
abuse.
3.4.2
Planted Areas - Trees, Shrubs, and
Groundcovers
.1
Contractor to guarantee all materials and
workmanship for a period of one full year
from date of the issuance of the Certificate
of Total Landscape Performance unless
specified otherwise in Contract Documents.
.2
Guarantee includes replacing all plants
determined by the Owner to be dead or
failing at end of guarantee period.
Replacements to be made at next
appropriate season, and conditions of
guarantee will apply to all replacement
seeding for one full growing season.
.3
The Owner reserves the right to extend
Contractor's guarantee responsibilities for
an additional one year if, at end of initial
guarantee period, leaf development and
growth is not sufficient to ensure future
survival.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 61
.4
Guarantee will not apply to seeded areas
damaged after date of Total Landscape
Performance by causes beyond
Contractor's control, such as vandalism,
"acts of God", "excessive wear and tear', or
abuse.
Division 33 - Utilities
MMCD Section 33 01 30.1S CCTV Inspection of Pipelines
1.0
GENERAL
.1
Section 33 01 30.1S refers to those portions of the
work that are unique to the requirements for
inspecting new and existing sanitary, storm and
combined sewer pipe and pipe culverts and the
associated laterals and service connections by
closed circuit television. This section must be
referenced to and interpreted simultaneously with
all other sections pertinent to the works described
herein.
1.1
Related Work
1.1.1
Traffic Control, Vehicle Access and Parking -
Section 01 55 00
1.1.2
Storm Sewers - Section 33 40 01
1.1.3
Pipe Culverts - Section 33 42 13
1.1.4
Manholes and Catchbasins - Section 33 44 01
1.1.5
Sanitary Sewers - Section 33 30 01
1.1.6
Cleaning of Sewers - Section 33 01 30.2
1.2
References
1.2.1
These specifications must be referenced to and
interpreted simultaneously with all other Standards
and Specifications pertinent to the works described
herein.
1.2.2
Reference standards, specification or publications.
.1
Pipeline Assessment and Certification
Program (PACP) Reference Manual
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 62
1.2.3
Nomenclature
.1
CCTV
Closed Circuit Television
.2
JPEG
Joint Photographic Experts Group
.3
WMV
Windows Media Video
.4
LACP
Lateral Assessment and
Certification Program
.5
PACP
Pipeline Assessment and
Certification Program
1.3
Work
Regulations
1.3.1
Work shall conform to all applicable regulations of
WorkSafe BC. The Contractor shall confirm
training compliance in the following:
1.
Confined space rescue
2.
Confined space entry
3.
Ventilation
4.
Atmospheric monitoring
5.
Self-contained breathing apparatus
6.
Personal protective equipment
1.3.2
Contractor shall provide written confirmation to the
Contract Administrator that workers have
knowledge of confined space entry practices and
of equipment required for confined space entry.
1.5
Scheduling of
Work
1.5.1
Schedule work to minimize interruptions to existing
services.
1.5.2
Maintain existing flow during inspection survey
unless flow reduction measures required per 3.11
Flow Reduction of this Section.
1.6
Measurement
for Payment
1.6.1
All units of measurement for payment will be as
specified herein unless shown otherwise in Form
of Tender.
1.6.2
CCTV pipeline inspection will be measured in
lineal metres. Payment will be made at the unit
price bid in Form of Tender.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 63
1.6.3
CCTV lateral service inspection will be measured
per lateral inspected. Payment will be made at the
unit price bid in Form of Tender.
1.6.4
Measurement will be determined by calibrated
electronic measure along the sewer from the
inside wall of manhole to inside wall of manhole or
end to end of sewer pipe for all sections except
where a blockage or obstruction occurs.
1.6.5
For sections of pipe where a blockage or
obstruction occurs, measurement will be from the
start of inspection (inside wall of manhole) to the
point of abandonment of survey.
1.6.6
For sections of pipe with the PACP condition code
MCU (camera underwater) that has a continuous
distance greater than five (5) metres, the
measurement above will be reduced by the
distance in excess of the five metres.
1.6.7
Separate payment will not be made for flow
control, with the exception of bypass pumping.
Bypass pumping for each situation as described in
the Form of Tender will be made as lump sum.
Payment for bypass pumping as required and only
where approved by the Contract Administrator will
be made on a per occurrence basis per 3.11 Flow
Reduction of this Section.
2.0
PRODUCTS
2.1
Equipment
2.1.1
A Survey Vehicle, containing a separate area for
viewing, recording and controlling of the CCTV
operation is required as follows:
.1
Viewing and control area to be insulated
against noise and extremes in temperature.
External and internal sources of light to be
controlled to ensure the light does not
impede the view of the monitor screen.
Proper seating accommodation shall be
provided to enable one person, in addition
to the operator, to clearly view the monitor
screen.
.2
All equipment utilized within the pipeline
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 64
shall be stored outside the viewing,
recording and control area.
.3
Vehicle to be equipped with a mobile
telephone for communication with the
Engineer for the duration of the work.
.4
Electrical power for the system to be self
contained. External power sources from
public or private sources will not be
permitted.
2.1.2
Survey Equipment shall have sufficient cables to
view the lengths of pipe as specified.
.1
Survey unit shall be a self-propelled crawler
type with a means of transporting the CCTV
camera and lateral launched camera in a
stable condition through the pipeline.
.2
Each unit shall carry sufficient numbers of
guides and rollers such that, when
surveying, all cables are supported away
from pipe and manhole edges. All CCTV
cables and lines used to measure the
camera's location within the pipeline shall
be maintained in a taut manner and set at
right angles, where possible, to run through
or over the measuring equipment.
.3
Each unit shall interface with a data
generator and appropriate software to
record the alpha-numeric data associated
with the pipeline condition and header
reference location information as follow:
.1
Title Screen overlay:
o Project #
o Contractor
o City
o Date
o Lateral ID (Lateral Segment
Reference)
o Mainline ID
o Start MH No.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 65
o End MH No
o Use (sanitary/storm)
o Address
o Size
o Material
o Tap distance (m) in mainline
o Survey distance (m) in lateral
.2
Travelling Screen overlay:
o Lateral ID
o Tap distance (m) in mainline
o Survey distance (m) in lateral
o Defect code and description
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 66
2.1.3
The camera shall be capable of producing high
quality colour imagery and provide complete
inspections and view of all laterals and
deficiencies.
.1
The camera shall be a "Pan & Tilt " type
having the capability of panning the pipe at
360°,tilt capability of 270°, and the ability to
provide complete inspections of service
connections up to property line. Lateral
camera to be self-leveling.
.2
Live picture is to be visible with no
interference and capable of registering a
minimum of 400 lines of resolution at the
periphery.
.3
Focus and iris adjustment shall allow
optimum picture quality to be achieved and
to be remotely adjusted. The adjustment of
focus and iris shall provide a focal range
from 150mm in front of the camera's lens to
infinity. The distance along the sewer in
focus from the initial point of observation
shall be a minimum of twice the vertical
height of the sewer and lateral.
.4
Camera shall be waterproof with a self-
contained lighting system capable of being
remotely adjusted. Lights to provide an
even distribution of light around the pipeline
perimeter without the loss of contrast or
flare out or picture shadowing.
2.2
Materials
2.2.1
Digital video files are to be stored on an electronic
file storage device in WMV format and presented
to the Contract Administrator on a regular basis for
audits as specified.
2.2.2
Photographs are to be in colour, with a minimum
image size of 90mm x 70mm and shall be
reproduced on premium glossy inkjet paper.
3.0
EXECUTION
3.1
CCTV
Inspection
3.1.1
CCTV operator to have received training by
NASSCO on PACP and LACP.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 67
3.1.2
The Contractor shall submit samples of inspection
reports, video (in WMV format) together with
corresponding digital data files for the Contract
Administrator review within one week of receipt of
notice to proceed with contract. This submission
shall demonstrate compliance with the contract
specifications contained herein and the accepted
submission will be used as a benchmark for
subsequent inspection report submissions.
3.1.3
No inspection surveys are to be carried out under
this contract until an acceptable sample inspection
report has been approved by the Contract
Administrator.
3.1.4
Flow in the pipeline is not to exceed approximately
20% of the pipe diameter. Notify of excessive
flows, inspect using flow reduction method per
3.11 Flow Reduction of this Section.
3.1.5
Steaming and fogging encountered during the
inspection survey shall be eliminated by
introducing forced air flow by means of fan.
3.1.6
Camera lens shall remain free of grease or other
deleterious matter to ensure optimal clarity.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 68
3.1.7
Inspection video images are to be produced in
WMV format.
.1
The format for naming each video file shall
be as follows: 2011-002.wmv (contract_yr-
InspectionNo.wmv)
.2
2011-002b.wmv (contract_yr-
InspectionNo.wmv) in the event that of
multiple files for the same report.
.3
Create separate digital file for each
individual manhole to manhole inspection
report. Identify each report title on the DVD
menu.
.4
Create separate file for each individual
sewer lateral inspection report. Clearly
identify the lateral ID number on the
electronic file name.
.5
Create separate file for each service
connection inspection report. Clearly
identify the service connection number on
the electronic file name.
3.1.8
Set zero chainage at face of every manhole, or on
entrance into pipe, start of pipe culvert, or lateral
interface.
3.1.9
Report and record on the full length of pipeline
from inside face to inside face between manholes
or outlet end of pipes and from one end of the pipe
culvert to the other. Report and record on the full
length of the lateral service and service connection
from pipeline interface to property line.
3.1.10
Note condition of pipe joints at manhole walls at
the beginning and end of each pipeline. Note
condition of mainline and lateral interface.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 69
3.1.11
Data generator shall electronically generate, and
clearly display on the viewing monitor and video
recording, a record of the following minimum
information prior to the start of each run:
.1
Manhole (from-to) / pipe length reference
numbers.
.2
Mainline / lateral and service connection
dimensions
.3
Pipe material (ie vitrified clay, concrete, pvc
etc.)
.4
Type or use of pipe (ie sanitary, storm or
combined sewer)
.5
Date of survey (dd.mm.yyyy)
.6
Road name / location
.7
Direction of travel of survey equipment (U
or D, Upstream or Downstream)
.8
Inspection (report) number. Format to be
provided by the Contract Administrator.
.9
Verbal description of all the above on
screen information.
3.1.12
Data generator shall continuously electronically
generate, and clearly display on the viewing
monitor and video recording, a record of the
following minimum information during each run:
.1
Automatic update of the camera's metre
reading position from adjusted zero.
.2
Manhole/pipe length reference numbers.
.3
Type or use of pipe (ie sanitary, storm or
combined sewer)
.4
The unique inspection/report number of the
run.
.5
Display digital information such that it will
not interfere with the video image on the
screen.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 70
3.1.13
The camera shall stop at each defect, change of
condition of pipe and service connection to record
defect in accordance with PACP and LACP codes.
3.1.14
Immediately notify Contract Administrator of any
blockage or obstruction that will not allow passage
of survey equipment.
3.1.15
Restart the inspection survey from the opposite
end of pipeline or culvert when a blockage or
obstruction is encountered unless directed by
Contract Administrator.
3.2
Recording
Resolution
3.2.1
At the beginning of each recording, day of
inspection or when a substitute camera is
introduced perform necessary checks to ensure
recording resolution satisfies these specifications.
3.3
Site Coding
Sheets
3.3.1
Each pipeline / lateral length to be recorded
according to the PACP and LACP. Any variation
from the manual to be noted in the survey report.
3.3.2
Standard coding form shall be modified as follows:
.1
Line 2, field 8 (date) to be eight (8)
characters in the format of yyyy.mm.dd
(year, month, day)
.2
Condition detail number (video count) to be
six (6) characters in the format of hh.mm.ss
(hours, minutes, seconds)
.3
Note observations as to condition of service
connections beyond mainline in remarks
column using standard codes as per PACP
and LACP.
3.4
Camera
Position
3.4.1
Position the camera lens centrally in the pipeline
connection to a tolerance of ±10% off the vertical
centerline axis of the pipeline. For elliptical pipe
the camera to be positioned 2/3 the height of the
pipe measured from the invert.
3.4.2
Position the camera lens looking along the
longitudinal axis of pipeline except when viewing
or panning defects.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 71
3.5
Camera Travel
Speed
3.5.1
Travelling speeds of the camera in the pipeline
shall be as follows:
.1
0.1m/s for diameter less than 200mm.
.2
0.15 m/s for diameter 200mm and larger
but not exceeding 310 mm; and
.3
0.20 m/s for diameter exceeding 310 mm.
3.6
Camera
Position
Chainage
Device
3.6.1
Use a chainage device which enables the cable
length to be accurately measured to indicate the
location of the camera.
.1
Chainage information to be transmitted
electronically to control area and
displayed on the monitor.
.2
Chainage device shall be accurate to
within 0.3 m up to the first 50 m of pipe
length and within ±1% for lengths
exceeding 50 m.
.3
Chainage tolerance shall be checked at
the start of contract and a minimum of
once every two weeks there after or
every 5000 m of pipeline inspected,
whichever is greater.
.4
Provide an audit form showing dates and
distances checked to meet both
tolerance requirements. Chainage linear
measurement to be checked by use of a
cable calibration device or tape or
electronic measurement between fixed
points.
3.7
Photographs
and/or Digital
Images
3.7.1
Photograph all major defects as defined by
condition codes: B, TF, TB, TS, D, FC, FL, FM, H,
IR, IG, JO, OB, JS, RB, and X.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 72
3.7.2
The following data, in alpha-numeric form, shall be
overlaid on photographs such that it will not
interfere with the defect condition reported:
.1
Report/job number
.2
Metre reading position (chainage)
.3
Manhole/pipe length reference numbers
(from - to)
.4
Photograph number
.5
Condition defect code
.6
Date of survey (dd.mm.yyyy)
3.7.3
Capture digital image in JPEG format if required,
as specified in contract documents.
.1
The format for naming each digital image
shall be as follows: 2011-002-1212a
(contract_yr-InspectionNo-
pipeID{a,b,c....}.jpg
3.7.4
Co-ordinate photographs with the hard-copy report
by reference number and inserting into the report
following the relevant section of pipeline inspected.
3.8
Inspection
Reporting Hard
copies & format
3.8.1
Submit reports to the Contract Administrator within
10 working days of completion of the field work on
a continuous basis as the inspection area or
pipeline types are finalized.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 73
3.8.2
Present machine printed (hard copy) and computer
generated database reports according to the
PACP é LACP format as follows:
.1
Each binder to commence with an index
of all survey inspection reports contained
within.
.2
Hard copy reports to be presented in
tabular form in accordance with PACP
Reference Manual.
.3
Reports to be presented in sections or
drainage areas and/or by pipeline type or
as specified in the contract documents.
.4
Computer database file to contain
identical survey report information as the
printed report exclusive of photographs.
.5
Digital information to be presented in
tabular configuration in accordance with
the Township of Langley standard file
format in Microsoft ACCESS (.MDB).
Single master databases file to be
presented at the end of the project
containing all the project CCTV reports
on an electronic storage device complete
with all WMV video files.
.6
Include all digital photographs on an
electronic storage device.
.7
Include scale drawings showing highlight
inspected pipeline. Drawing to be
included as an attachment in the
condition report and as a separate PDF
file for each section of sewer pipeline
surveyed.
.8
All reports and related reference maps to
also be submitted in PDF format.
3.8.3
Present reports in 215 mm x 280 mm three ring (D
type) binders. DVD's or USB flash drive containing
relevant CCTV inspections surveys to be included
in the binder.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 74
3.8.4
Attach digital media in three hole plastic diskette
sheet holder and USB flash drives in two hole
plastic sleeve holder in back of binder.
3.8.5
All dimensions and chainages shall be in meteric.
3.9
Flushing and
Cleaning
3.9.1
Clean or flush sewers per Section 33 01 30.2 -
Cleaning of Sewers no more than 2 days prior to
CCTV inspection survey, unless otherwise
specified in the contract documents or directed by
the Contract Administrator.
3.10
Root Cutting &
Removal
3.10.1
Remove roots for condition codes RB where
required, to allow for CCTV equipment to pass.
3.11
Flow Reduction
3.11.1
Reduce flow in pipeline to approximately 20% pipe
diameter to allow CCTV inspection by combination
of the following:
3.11.2
Schedule work for off peak flow times.
3.11.3
Plug or block flow at upstream manhole.
.1
Plug designed to either plug all flow or
impede flow to the approximate 20%
pipe diameter.
.2
Obtain Contract Administrator's approval
prior to plugging or impeding any flow.
.3
Remove plug or blocks to slowly return
flow to normal without surge or
surcharging downstream pipeline.
3.11.4
Temporary bypass pump flow around inspection
section when required, as specified in contract
documents. Plug to be flow through with hoses
and pump of sufficient capacity to handle the peak
flow. Hoses and couplings to be leak free. Flow to
be pumped to downstream manhole on same
system or run as inspection is to take place.
Obtain Contract Administrator's approval prior to
setting up temporary bypass pump system.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 75
3.12
Coding
Accuracy
3.12.1
Coding accuracy shall be a function of the number
of defects or construction features not recorded
(omissions) and the correctness of the coding and
classification recorded. Coding accuracy to satisfy
the following requirements:
.1
header accuracy 95%
.2
detail accuracy
85%
3.12.2
The Contractor shall implement a formal coding
accuracy verification system at the onset of the
work. Coding accuracy to be verified by the
Contractor on a random basis on a minimum of
10% of the inspection reports. Contract
Administrator will be entitled to review the
accuracy verification system and results and be
present when the assessments are being
conducted.
3.12.3
A minimum of two accuracy verifications to be
performed for each operator for each working
week. Coding not satisfying the accuracy
requirements to be re-coded and the accuracy of
the inspection report immediately preceding and
following the non compliant inspection to be
verified. Process to be repeated until the
proceeding and subsequent inspections meet
accuracy requirements.
2.0
PRODUCTS
2.2
Materials
Append 2.2.1
DVD-R, CD-R or USB are acceptable storage
types.
3.0
EXECUTION
3.1
CCTV
Inspection
Delete 3.1.8 and
replace with the
following:
Windows Media Video (wmv) shall be the digital
submission format.
Delete 3.1.12.6
and replace with
the following:
Road name / Location shall be recorded to the
nearest address and/or intersection in the video.
Add 3.1.12.10
Township Project Number and Contractor
reference number shall be shown on footnote.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 76
3.8
Inspection
Reporting Hard
Copies & Digital
Format
Add 3.8.2.5.1
Contractor shall provide an additional separate
summary report containing:
-
Attribute field for Video Reference
Filename into Inspection or Session Table
-
Attribute field for Picture Reference
Filename into Condition details Table
-
Flatten the coded values to actual text
values.
Add 3.8.2.8
Digital pdf version of hard copy final report shall be
included as part of the submission.
MMCD Section 33 11 01S
Waterworks
1.0
GENERAL
2.0
PRODUCTS
2.6
Hydrants
Delete 2.6.1.6
and replace with
the following:
Pump nozzle shall be "quick connect" STORZ
type. STORZ type nozzle must be painted gloss
black with marine enamel based paint.
Delete 2.6.2 and
replace with the
following:
Colour: Cloverdale Paint Enamel, Applied by brush
Body - Bright Red Part No 11187 or
approved equivalent
Hose Caps - White
2.7
Underground
Service Line
Valves and
Fittings
Add 2.7.2.3
37 mm and 50 mm shall not be wheel gate valves.
Add 2.7.3.6
Wheel gate valves shall not be used.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 77
2.8
Granular Pipe
Bedding and
Surround
Material
Add 2.8.3
Bedding and surround material shall be Type 1
under Section 31 05 17 - 2.7 or 19mm minus clear
crushed gravel.
3.0
EXECUTION
3.5
Granular
Bedding
Delete 3.5.6 and
replace with the
following:
Place watermain pipe on granular bedding. Place
water services on prepared flat bottomed trench
free of rock in excess of 50 mm without bedding.
Backfill with approved native or imported material
and compact as specified. Use hand tools to
compact material under 'haunch' areas of pipe and
around fittings and other materials.
3.6
Pipe Installation
Add 3.6.15
When the watermain crosses a storm or sanitary
sewer, the watermain shall be installed a minimum
0.5 m clear above the sewer. Where this is not
possible, the watermain shall have a minimum 0.3
m clearance under the sewer with all joints within a
3.0 m horizontal distance from the sewer wrapped
with heat shrink plastic or packed and wrapped
with petrolatum tape in accordance to the following
standards:
.1
ANSI/AWWA C214 (factory
applied)
.2
ANSI/AWWA C209 (field applied)
.3
ANSI/AWWA C217-90
(petrolatum tape)
.4
All materials used are to have
zero health hazard
Installation shall be in accordance with the
requirements of the Regional Health Engineer
under the Health Act.
3.10
Service
Connection
Installation
Append to
3.10.1
... Personnel installing service connections shall
be certified as being fully trained and competent in
tapping watermains.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 78
3.13
Thrust Blocks
Delete 3.13.1
and replace with
the following:
Place concrete thrust blocks between valves, tees,
plugs, caps, bends, changes in pipe diameter,
reducers, hydrants and fittings and undisturbed
ground as shown on Contract Drawings or as
directed by Contract Administrator and as detailed
on Supplementary Detail Drawing TLW2.
3.17
General
Procedures
Flushing,
Testing, and
Disinfection
Delete 3.17 and
replace with the
following:
As per ANSI/AWWA C651-14
3.18
Cleaning and
Preliminary
Flushing
Delete 3.18 and
replace with the
following:
As per ANSI/AWWA C651-14
3.19
Testing
Procedures
Delete 3.19 and
replace with the
following:
As per ANSI/AWWA C651-14
3.20
Disinfection,
General
Delete 3.20 and
replace with the
following:
As per ANSI/AWWA C651-14
3.21
Disinfection,
and Flushing
Procedures
Delete 3.21 and
replace with the
following:
As per ANSI/AWWA C651-14
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 79
MMCD Section 33 42 13S
Pipe Culverts
1.0
GENERAL
2.0
PRODUCTS
2.1
Corrugated
Steel Pipe
Delete 2.1 and
replace with the
following:
Use of corrugated steel pipe for culverts is not
permitted.
2.3
Plastic Pipe,
Smooth Profile
Delete 2.3 and
replace with the
following:
Use of smooth profile plastic pipe for culverts is not
permitted.
2.4
PVC Pipe,
Profile
Delete 2.4 and
replace with the
following:
Use of PVC plastic pipe for culverts is not
permitted.
2.5
HDPE Plastic
Pipe, Open
Profile
Delete 2.5 and
replace with the
following:
Use of HDPE plastic pipe open profile for culverts
is not permitted.
3.0
EXECUTION
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 80
MMCD Section 33 44 01S
Manholes and Catchbasins
1.0
GENERAL
2.0
PRODUCTS
2.1
Materials
Delete 2.1.14
and replace with
the following:
Joints to have rubber gaskets conforming to ASTM
C443.
3.0
EXECUTION
3.3
Manhole
Installation
Delete 3.3.17
and replace with
the following
Ensure frames conform to design contour of
pavement or existing surface. Manhole lids left
raised in preparation for paving shall have a
rubberized protector ring or asphalt ramp for traffic
safety. Supply and use of this equipment is
considered incidental to the Work.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 81
Division 34 - Transportation
MMCD Section 34 41 13S
Traffic Signals
1.0
GENERAL
1.3
Shop Drawings
Append to 1.3.4
... registered in British Columbia.
1.5
Contractor
Qualifications
Add 1.5.3
All on-site traffic signal installations shall be
under the responsibility of a primary journeyman
electrician with IMSA Level 2 Signal Certification
and have successfully completed at least five (5)
traffic signal system installations. This primary
journeyman electrician shall be on the work site
and report work progress to Township of
Langley's Traffic Operations staff, in addition to
reporting to the Contractor.
2.0
PRODUCTS
2.1
General
Delete 2.1.2 and
replace with the
following:
All products supplied to be new, in accordance
with Contract Documents. All products are to
meet Canadian Electrical Code requirements
and be certified by either CSA, UL©, or Intertek
Testing Systems (Warnock Hersey) and be
supplied with the certifier's label
Delete 2.1.3 and
replace with the
following:
All products shall be in accordance with the
Township of Langley's List of Approved
Materials and Products List. Any products not
listed with in the Approved List shall default to
the current BC MOTI specification.
Delete 2.1.5 and
replace with the
following:
Equipment models listed within the Township of
Langley's List of Approved Materials and
Products shall be confirmed with the Township
immediately prior to their order to ensure that
they are current. Cut-sheets, equipment make,
model and serial number list to be provided to
the Township by the contractor for each traffic
signal location. Material supplied by Township of
Langley and installed by Contractor, shall be
shown in the Contract Documents.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 82
Add 2.1.6
The Township of Langley will supply the
following materials from the Operations Centre
at cost to the Owner unless otherwise
determined by the General Manager:
-
Traffic controllers and cabinets;
-
Video detector systems;
-
Padlocks;
-
Street name signs;
-
"New Signal Ahead" signs;
-
Emergency Vehicle Pre-emption
systems;
-
Radio communications systems to
communicate to traffic controllers;
-
Uninterruptible Power Supply (UPS).
The Contractor shall check quantities and verify
materials are correct and undamaged, complete
a "Materials Release Form" and deliver the
materials to the site. The Contractor shall
assume all responsibility for the materials from
the time they are picked up.
Add 2.1.7
The Contractor shall notify the Owner in writing
seven (7) days prior to materials being picked
up.
2.16
Traffic and
Pedestrian
Signals
Delete 2.16.1
and replace with
the following:
Traffic signal heads to be green polycarbonate
with 300mm round signal indications, and
conform to Section 601 Signal and Pedestrian
Heads BCMOTI E&SMS V1. All primary and
secondary signal heads shall have yellow
aluminum backboards with 75mm border of
yellow prismatic retro-reflective sheeting (3MTM
ScotchliteTM Diamond GradeTM VIP Reflective
Sheeting Series 3990 or approved alternate).
Delete 2.16.2
and replace with
the following:
Signal head backboards with plumbizer gaps or
knock out sections will not be accepted for
adjustable bracket signal head mounting
method.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 83
2.17
LED Signal
Modules
Delete 2.17 and
replace with the
following:
As per Township of Langley's List of Approved
Materials and Products.
2.19
Signal Mounting
Hardware
Add 2.19.8
Primary signal head safety cable to be 3/32"
galvanized steel aircraft cable.
Add 2.19.9
As per Township of Langley's List of Approved
Materials and Products.
2.20
Audible Signals
Delete 2.20 and
replace with the
following:
As per the Township of Langley's List of
Approved Materials and Products.
2.21
Pedestrian /
Cyclist
Pushbuttons
Delete 2.21 and
replace with the
following:
As per the Township of Langley's List of
Approved Materials and Products.
2.22
Luminaires
Add 2.22.6
As per the Township of Langley's List of
Approved Materials and Products.
2.29
Illuminated
Crosswalk
Signs
Delete 2.29 and
replace with the
following:
As per the Township of Langley's List of
Approved Materials and Products. Illuminated
sign safety cable to be 3/32" galvanized steel
aircraft cable.
3.0
EXECUTION
3.1
Add 3.1.5
During the installation of the traffic signal
system, maintain the existing traffic signal and/or
signs as noted on the Contract Drawings. If
temporary or permanent relocations of related
traffic signal equipment or signs are required,
such equipment shall be reinstated as required
under the Contract Documents or as directed by
the Contract Administrator.
3.3
Concrete Bases
Add 3.3.7
Contrary to Standard Detail Drawing E7.3, the
position of the 53mm RPVC conduit for service
and 35mm RPVC conduit for street lighting shall
be reversed.
Add 3.3.8
Lifting cables on concrete controller bases shall
be removed after base installation.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 84
3.4
Junction Boxes
and Vaults
Add 3.4.5
Junction boxes requiring 3 full sections or more
must be approved by the Township of Langley's
Traffic Operations staff.
Add 3.4.6
All junction boxes shall be provided with RPVC
bars to support electrical connections and fuse
holders. The RPVC bars shall be attached into
the junction box side walls with the electrical
connections/fuse holders tie-wrapped in place
and installed in the up-right position.
3.5
Underground
Conduit
Delete 3.5.5 and
replace with the
following:
Empty conduits shall have a No. 8 HB
Yellow/Green Mk pull string and capped at both
ends.
Add 3.5.6
Conduits shall be blown out with compressed air,
from both ends if necessary, then swabbed out to
remove stones, dirt, water and other material
which may have entered during installation.
Add 3.5.7
All conduits entering poles and cabinets shall be
sealed with "Duct Seal".
Add 3.5.8
Conduit depth of bury to be recorded when a
trenchless technology method is used
Add 3.5.9
Conduit shall not be bent in the field. Only factory
bends will be accepted.
Add 3.5.11
Conduit shall not be bent in the field. Only factory
bends will be accepted.
3.7
Traffic Signal
and Pedestrian
Head Mounting
Delete 3.7.1 and
replace with the
following:
Install traffic signal and pedestrian signal heads
as shown and Standard Detail Drawings E5.2 and
E5.9 only.
Add 3.7.5
Primary traffic signal heads shall be safety cabled
to the traffic signal pole arm using 3/32"
galvanized steel aircraft cable looped through the
traffic signal backboard and fastened with a rope
clip.
3.10
Luminaires and
Photocells
Add 3.10.4
NEMA wattage label shall be visible at the bottom
of the luminaire on all fixtures.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 85
3.14
Wiring
Delete 3.14.3
and replace with
the following:
Bond all signal heads and luminaires with No. 12
RW90 green conductor, and steel junction box
lids with No. 8 RW90 green conductor.
3.16
Traffic
Controller
Add 3.16.8
Silicone sealant shall be applied to both sides of
the rubber gasket, which is placed between the
traffic signal cabinet and the concrete base to
ensure a weather tight seal.
Add 3.16.9
Traffic cabinet interior shall be kept dry during
inclement weather.
3.19
Advance
Warning Signs
Add 3.19.2
Contrary to Standard Detail Drawing E10.3, Item
A shall be a 300mm signal head section with LED
display.
Add 3.19.3
Advance warning signs shall have yellow
prismatic retro-reflective sheeting (3MTM
ScotchliteTM Diamond GradeTM VIP Reflective
Sheeting Series 3990 or approved alternate).
3.20
Grounding &
Bonding
Add 3.20.5
Grounding rod or plate electrodes shall not be
installed inside the traffic signal cabinet base.
Add 3.20.6
Remove all paint around bonding studs on inside
of pole to expose the galvanized or metal surface
prior to bonding equipment.
3.22
Pole Finish
Application
Delete 3.22 and
replace with the
following:
.1
Prior to producing a powder finish product the
supplier must provide a Certificate of
Compliance indicating that they have met or
exceeded the following specifications. The
supplier will name their independent testing
agency and this information will be submitted
to the Township for their files.
.2
The application process will be as follows:
.1
The pole or product will be hot dip
galvanized.
.2
Powder will only be applied after the
product is completely fabricated. No
welding or bending will take place
after the powder is applied.
.3
The pole or product will be thoroughly
cleaned by brush blasting in
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 86
accordance with SSPC-SP7. The
brush blast will maintain a minimum
profile of 0.5 mils. If brush blasting is
done off site then the product will be
covered and shielded from any dirt or
moisture during its return to the
powder applicators facility. Where
poles or products are not kept clean
and dry or have any signs of flash rust
they will be returned for further brush
blasting.
.4
Once at the applicators facility the
pole or product will be thoroughly
cleaned and dried with an air gun. All
hand marks or grease spots will be
cleaned with a mild solvent.
.5
After brush blasting the entire pole or
product will be pre-baked in an oven
at 220 degrees C for at least 30
minutes to 1 hour, depending on steel
thickness. The pre-baking must be
done to prevent out-gassing during
the curing cycle.
.6
The base powder coat will then be
applied electrostatically while the pole
or product is cooling from the 220
degrees C pre-bake period to allow
the powder to melt and fuse to the
surface. The base coat will be a
minimum of 3 mils in thickness.
.7
After base coat is applied and set the
topcoat will be applied to a thickness
of 3 to 5 mils. The pole or product will
be returned to the oven and heated to
190 to 220 degrees C (temperature
will not exceed pre-bake) for a
minimum of 25 minutes, depending on
steel thickness. Thicker product
material may require longer bake
cycles to fully cure. Upon removal of
the pole or product from the oven it
will be left to rest until the pole or
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 87
product is cool enough to the touch.
.8
Once the topcoat has cured and the
poles or product cooled, they will then
be individually wrapped (min 4"
overlapping method) with 1/8" foam
wrap over the entire pole or product.
The poles or product will be bundled
together and separated with suitable
wood dunnage to avoid contact
between the poles, products or other
bundles. All bundles themselves will
be fully wrapped with foam and with
stretch-wrap as noted above. The
poles or products will be handled and
shipped with great care to prevent
damage; damaged product will be
cause for rejection of the item(s).
.3
Testing process will be as follows:
.1
Each run of product in an oven will
have at least one sample tested for:
.2
Adhesion - The finished powder
surface will have minimum pull-off
strength exceeding 1000 PSI as
tested in accordance with ASTM
D4541.
.3
Quality - The finished powder surface
will be free from any holidays (skips or
misses) as tested in accordance with
ASTM D4541. The product will also
be free from wrinkles, orange peel,
cracking, pinholes, fish eyes, blisters,
etc. by visual inspection.
.4
Colour - The colour will be verified to
be within 3 DE of specified colour.
.5
An independent testing firm who are
qualified to test powder finish will do
the testing at the supplier's expense.
The result of tests must accompany
the Certificate of Compliance and will
be made available to the Township or
their representative upon request. A
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 88
supplier who fails to test product as
noted above will have their product
rejected until the testing is completed
and the product deemed acceptable
by the testing agency.
.6
Where the tested product fails on a
given production run then a minimum
of 30 % of the entire production run
will be tested. If no other failures are
found then the individual failed
product will be stripped, reapplied and
re-tested until it passes. If any of the
30% of product tested fails then the
entire order will be stripped, reapplied
and retested until it passes.
.4 Field repairs will be undertaken as required to
fix any scratches or imperfections in the final
finish. Field repairs will be done as follows:
.1
Feather the damaged area with
sandpaper.
.2
Clean area with solvent.
.3
Let dry.
.4
Neatly brush on an application of
Aliphatic Urethane Acrylic Semi-
Gloss High Build applied at 2-4 mils
DFT over the entire sanded and
damaged area. The ambient
conditions will be dry and over 10
degrees C when the paint is
applied.
.5
The pole supplier will warranty the
integrity of the surface for a
minimum of 1 year from the date of
installation. The warranty will
include all labour and materials
required to provide replacement
product if required. The powder
finish will be the responsibility of
the pole supplier. The warranty will
apply to fading, blistering, cracking
or chipping of the surface.
Schedule C | Construction Requirements and Specifications
Section 2 - Specifications
Page 89
3.26
Uninterruptable
Power Supply
Add 3.26.2
Uninterruptable power supply / cabinet to be
installed on the back of the traffic controller
cabinet as detailed on the Contract Drawings.
3.28
Emergency
Vehicle
Pre-emption
Add 3.28.1
Emergency vehicle pre-emption system to be
installed as detailed on the Contract Drawings.
Add 3.28.2
Cable shall be continuous with a minimum of 2m
of cable slack to be provided at each end, with no
splices. Cabinet termination to be completed by
Township.
3.29
PTZ/CCTV
Cameras
Add 3.29.1
PTZ/CCTV cameras to be installed as detailed on
the Contract Drawings. Contact the Township of
Langley's Traffic Operations staff prior to
installation.
Add 3.29.2
Cable shall be continuous with a minimum of 2m
of cable slack to be provided at each end, with no
splices. Cabinet termination to be completed by
Township.
3.30 Radio
Communications
Equipment
Add 3.30.1
Radio communications equipment to be installed
as detailed on the Contract Drawings. Contact the
Township of Langley's Traffic Operations staff
prior to installation.
Add 3.30.2
Cable shall be continuous with a minimum of 2m
of cable slack to be provided at each end, and
with no splices. Cabinet termination to be
completed by Township.
TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE D
APPROVED MATERIALS AND PRODUCTS
SCHEDULE D
APPROVED MATERIALS AND PRODUCTS
TABLE OF CONTENTS
1.
General ............................................................................................................................... 1
2.
Sitework Except Landscaping ............................................................................................. 1
3.
Electrical ............................................................................................................................12
4.
Landscaping ......................................................................................................................15
Schedule D | Approved Materials and Products
Page 1
1. GENERAL
Schedule D lists materials and products that are approved, restricted, or not allowed for Works
and Services required by this Bylaw.
If a material or product is not listed in relation to an MMCD or a Supplementary Specification,
any product meeting the requirements of such specification shall be accepted.
Where brand names are specified for a product, any proposal for an alternate product requires
the approval of the Municipal Engineer.
The Municipal Engineer may vary the requirements of Schedule D in circumstances that he
considers to be appropriate.
2. SITEWORK EXCEPT LANDSCAPING
"Generic" means any product of the approved material / type is acceptable if meeting MMCD or
Supplementary Specification.
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
31 11 45
Shrub and Tree
Preservation
2.1
Materials
Snow Fence
Dupont
L-70
32 93 23
Sodding
2.1.3
Sod
Net-free
33 11 01
Waterworks
2.2.1
Water Main
Ductile Iron
Ductile Iron
Canada Pipe
C-350
To be approved by
Municipal Engineer.
2.2.2
Water Main
PVC
- PVC
- PVCO
- Ipex
- NAPCO
Royal Pipe &
Fittings
- Blue Brute
- Seal
- Bionax
PVC pipe to AWWA C900 /
C905/ C909.
DR18 Minimum.
Compliance with MMCD
updated Section 33 11 01
2.2.2.2 for thickened bell
and spigot pipe.
All PVC / PVCO water
mains shall be pigmented
blue.
Nitro gasket shall be used
when hydro carbon is
encountered in surrounding
soil.
Bionax to be accepted for
use in seismic condition.
Schedule D | Approved Materials and Products
Page 2
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
2.2.3
Water Main
HDPE
HDPE
- KWH Pipe
- High
Performance
Pipe
- WL Plastics
To be approved by
Municipal Engineer.
2.2.4.2/3
Water Main
Fitting Ductile
Iron
Ductile Iron
- Terminal City
Iron Works
- Norwood
Foundry
- Sigma
To be approved by
Municipal Engineer.
AWWA C153
AWWA C110
2.2.4.4
PVC Injection
Molded Fittings
- PVC
- PVCO
- IPEX
- NAPCO
Royal Pipe &
Fittings
Fittings to be manufactured
to and certified by CSA to
CSA Standard B137.2.
Fittings to be ULI listed and
FM approved.
Fittings to have a HDB of
4,000 psi.
Fittings to meet NSF
Standard 61.
IPEX & ROYAL/NAPCO
C900 Class 235 5° bend
approved.
2.2.4.5
PVC Fabricated
Fittings
- PVC
- PVCO
- IPEX
- Pro-line
- Galaxy
Plastics
2.2.9
Nuts and Bolts
Corten Steel
2.2.10
Tie Rod
Corten Steel
2.2.12
Couplings and
Flange
Coupling
Adapters
Plain End
Coupler
- Robar
- Smith-Blair
- Romac
- Powerseal
- Ford
- Krausz
Industries
- Robar 1408
- Smith-Blair
461
- Romac
XR501
- Powermax
3506
- Ford FC2W
- Hymax Grip
- Hymax 2
Schedule D | Approved Materials and Products
Page 3
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Flanged Adapter
- Robar
- Smith-Blair
- Romac
- Mueller
- EBAA
- Clow
- Robar
7404/7406
- Smith-
Blair912
- Romac
- Mueller
- EBAA Iron
1000
- Clow Series
40, DI
- Clow Series
90, PVC
Restrained
Flange Adaptors
- Romac
- Uniflange
- EBAA
- Romac
RFCA
- Uniflange
RFAP
- EBAA 2100
Repair Clamps
- Canpac
- Mueller
- Robar
- Clow
- Romac
- Canpac
CR-2
- Mueller 520
- Robar 400
and 1500
- Clow 100,
200, 300
- Romac SS2
Repair clamps shall be
stainless steel.
2.2.13
Joint Restraint
Ductile Iron
Mains
- UniFlange
Series 1400
- EBAA Iron
- Clow
- UniFlange
Series 1400
- EBAA Iron
Megalug17
00
- Clow
Tufgrip
TDG
All joint restraints shall
have a pressure rating
equal to the mainline pipe.
To be approved by
Municipal Engineer.
Joint Restraint
PVC / PVCO
Mains
- UniFlange
- EBAA Iron
- Romac
- UniFlange
Series 1300
- EBAA Iron
MJ Series
1500
- EBAA Iron
1900
- Romac
Alpha
No wedge action type for
PVC or PVCO pipes.
Restraint systems for PVC
or PVCO pipe shall be
approved by the pipe
manufacturer to not reduce
the pipe recommended
working pressure.
Restrained
Joint Pipe
Systems (PVC)
- Ipex
- NAPCO
Royal Pipe &
Fittings
- Ipex Terra
Brute
- Royal/NAP
CO Cobra
Lock
Schedule D | Approved Materials and Products
Page 4
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Restrained
Joint Pipe
Systems (DI)
- US Pipe
- McWane
- Field-Lok
Gasket
- SureStop
Gasket
Thrust-Lok will not be
allowed.
2.3
Valves and
Valve Boxes
75 mm - 300
mm Resilient-
seated
- Mueller
- Clow Canada
- AVK
- Mueller
A2362
- Clow 6100
- AVK
All valves shall have epoxy
coated ductile iron body to
AWWA C 509.
With stainless steel bolts.
350mm or
greater Mainline
Butterfly Valve
- Pratt
- Mueller
- Pratt
Groundhog
- Mueller
Lionseal III
AWWA C 504 Class 150B.
With stainless steel bolts.
2.3.4
Blowoff Valve
50mm Resilient
Seat Gate Valve
- AVK
- Mueller
- Clow
- AVK
- Mueller
A2360
- Clow F6103
AWWA C509
2.3.5
Air Valve
- Apco
- Val-Matic
- Canpac
- Pratt
- Crispin
- APCO
140C
- Val-Matic
201C
- Pratt UL
- Crispin UL
2.3.6
Water Valve
Box
- Terminal City
- Dobney
- Sigma
- Armtec
- Dobney D5
- MR6
Nelson type.
Cover shall be marked with
"Water."
2.3.7
Curb Stop Box
- Dobney
- Trojan
- Mueller
- Dobney
D10
- Trojan VSB
- Mueller
A726
- Mueller
A728
Nelson type.
Cover shall be marked with
"Water."
Water Meter
- Sensus
- Elster
- Neptune
AWWA C700
Min. 150PSi
Joint
Protection
Petrolatum Tape
- Petrowrap
- Trenton Tec
Tape
- Denso
AWWA C209
AWWA C214
AWWA C217-90
2.3.8
Check Valve
Watts
Model 007-QT
CSA / UL Approved
Schedule D | Approved Materials and Products
Page 5
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
2.5
Water Service
Connection
High Density
Polyethylene
IPex
GoldStripe
Tracer wire to be included.
PEX
Rehall
Municipex
(PexA)
Tracer wire to be included.
2.5.3.2
Saddles for
Ductile Iron
Mains
- Robar
- Canpac
- Mueller
- Romac
- Robar
2406/2408
- Canpac 313
- Mueller
DR2A
- Romac
202BS
2.5.3.3
Saddles for
PVC / PVCO
Main
- Canpac
- Robar
- Cambridge
Brass
- Smith-Blair
- Canpac
SC2
- Robar
Series 2606
- Cambridge
Brass 8403
- Smith-Blair
370
Saddles required for
service installation on all
PVC / PVCO mains and
shall be approved by pipe
manufacturer
Tapping Sleeve
for PVCO
- Ford Meter
Box
- JCM
- Ford FS313
- JCM 422
Series
Abandon
Service Sleeve
Robar
6636AS
2.6
Hydrant
- Terminal City
- Canada Valve
- Clow Canada
- C71P -
H105
- "Century"
- M93
Brigadier
Must have 100mm Storz
fitting on pumper port and
painted black, otherwise
cap to be painted black.
2.7.2
Corporation
Stop
Full Port Ball
Valve
- Cambridge
Brass
- Ford
- Mueller
- Al-MacDonald
- Cambridge
Brass 301
- Ford FB600
- Mueller
B25008
- Al-
MacDonald
4700
Shall be full-port ball valve
to 50 mm only.
Use mainline gate valve for
sizes >50 mm.
2.7.3
Curb Stop
Full Port Ball
Valve
- Cambridge
Brass
- Ford
- Mueller
- Al-MacDonald
- Cambridge
Brass 202
- Ford B44-
343G
- Mueller
B25209
Shall be full-port ball valve
to 50 mm with 900 turn
stop.
Use mainline gate valve for
larger sizes > 50mm.
Schedule D | Approved Materials and Products
Page 6
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
- Al-
MacDonald
6100
Meter Setters
Ball Valve Inlet
& ASSE Dual
Check Outlet
- Cambridge
Brass
- Ford
- Mueller
Meter Pits
- Langley
Concrete
Group
- LCT #37
with cast
iron Lid for
20mm and
25mm
- LCT #66
with steel lid
for 37.55
and 50mm
For outside of roadway
use.
3.9
Casing
Spacers
As shown on
contract
drawings
- Uniflange
- Calpico
- Uniflange
- Calpico
Shall be fabricated cast
iron or high density
polyethylene insulating
spacers designed to center
main in the carrier pipe.
33 30 01
Sanitary
Sewers
2.1
Concrete
PVC / PE lined
Concrete Pipe
- Langley
Concrete
Group
- Ocean Pipe
To be approved by
Municipal Engineer.
2.2
PVC Pipe,
Mainline
Smooth Profile
PVC SDR35
- IPEX
- NAPCO
Royal Pipe &
Fittings
- Diamond
- JM Eagle
- Northern Pipe
Products
- IPEX Ring-
Tite
- ROYAL/NA
PCO Seal
- Diamond
Sani-21
Sizes > than 750 mm to be
approved by the Municipal
Engineer.
2.3
Sanitary
Service
Connection
PVC SDR35
Min 100mm
diameter
- IPEX
- NAPCO
Royal Pipe &
Fittings
- Diamond
- JM Eagle
- Northern Pipe
Products
- IPEX Ring-
Tite
- ROYAL/NA
PCO Seal
- Diamond
Sani-21
New PVC main: use
manufactured wyes.
New or existing ribbed PVC
main: use Inserta-Tee.
Schedule D | Approved Materials and Products
Page 7
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Inspection
Chamber
Inspection
Chamber
- NAPCO
Royal Pipe
- Pro-line
Fittings
- Galaxy
Plastics
Series 37 concrete pull box
shall be used over driving
surface as per MMCD S9
Lid marker Sanitary
Series 37
Concrete Pull
Box
- Langley
Concrete
Group
- Armtec
- Diamond Pre-
Cast
- LCT #37
with cast
iron Lid for
20mm and
25mm
LCT #66
with steel lid
for 37.55
and 50mm
Inspection
Chamber Back-
flow check valve
- NAPCO
Royal Pipe
- Pro-line
Fittings
- Galaxy
Plastics
Service
Connection
Cast Iron
Boxes
Cast Iron MR
Style
- Westview
- Dobney
- TR 8C
- MR8
Repair
Couplers
Rollee, Fernco,
Shear Band
Rollee,
Fernco, Shear
Band
Couplers shall have
appropriate adaptor
gaskets to suit OD of pipe
material being coupled.
33 34 01
Sewage
Forcemains
2.2
Pipes, Joints
and Fittings
HDPE with
fusion welded
joints
PVC C900
- KWH Pipe
- High
Performance
Pipe
- WL Plastics
- IPEX
- NAPCO
Royal Pipe
C900
AWWA C906.
To be approved by
Municipal Engineer.
2.3
Valves
Air Valves
- ARI
- APCO-ASU
- VentoMat
2.4
Valve Chamber
Lid
- Dobney
- Westview
Dobney C20
33 40 01
Storm Sewers
Schedule D | Approved Materials and Products
Page 8
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
2.1
Concrete Pipe
Non-reinforced
Concrete C14-3
Reinforced
Concrete C76-
III, IV, and V
- Langley
Concrete
Group
- Ocean Pipe
Shall be Q-Cast or PPP
Certified.
2.2
PVC Pipe,
Mainline
Smooth Wall
PVC SDR35
- IPEX
- NAPCO
Royal Pipe &
Fittings
- Diamond
- JM Eagle
- Northern Pipe
- IPEX Ring-
Tite
- ROYAL/NA
PCO Seal
- Diamond
Sani-21
Sizes > than 750 mm to be
approved by the Municipal
Engineer.
2.3
PVC Pipe,
Mainline Profile
- Ipex
- NAPCO
Royal Pipe &
Fittings
- Ipex
UltraRib
- Royal Korflo
No spiral ribbed pipe will be
allowed.
2.4
HDPE Pipe,
Mainline Open
Profile
Polypropylene
- Armtec
- ADS
- Armtec
Boss 2000
- ADS N-12
WT
- Sanitite HP
Max dia. 900mm, Min pipe
stiffness 320kpa
Dual-wall 300-750mm
Triple-wall 750-1500mm
2.6
Service
Connection
PVC SDR35
Min 150mm
diameter
- IPEX
- NAPCO
Royal Pipe &
Fittings
- Diamond
- JM Eagle
- Northern Pipe
- IPEX Ring-
Tite
- ROYAL/NA
PCO Seal
- Diamond
Sani-21
New PVC main: use
manufactured wyes.
New concrete main: use
PVC stub with bell, pre-
cemented with epoxy resin.
New or existing ribbed PVC
main: use Inserta-Tee.
New Profile HDPE mains:
Use injection molded PVC
manufactured wyes for
mains < 300.
Other mains: use strap
saddles.
Inspection
Chamber
Inspection
Chamber
- Le-Ron
Plastics Inc.
- Pro-line
- Galaxy
Plastics
- LCT #37
with cast
iron Lid for
20mm and
25mm
LCT #66
with steel lid
for 37.55
and 50mm
Series 37 concrete pull box
shall be used over driving
surface as per MMCD S9.
Schedule D | Approved Materials and Products
Page 9
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Series 37
Concrete Pull
Box
- Langley
Concrete
Group
- Armtec
- Diamond Pre-
Cast
Service
Connection
Cast Iron
Boxes
Cast Iron MR
Style
- Westview
- Dobney
- TR 8
- MR 8
33 42 13
Pipe Culverts
2.0
Products
End Walls
Concrete
- Langley
Concrete
Group
- Ocean Pipe
Q-Cast or PPP Certified.
Fiberglass
Composite
- CIF
Composites
- Armtec
Ecolite
For use in poor soil area
only.
Storm Culvert
Reinforced Conc
Reinforced Conc
Box
Corrugated
HDPE
- ADS
- Armtec
N12 WT
Sanitite HP
Boss 2000
Max dia. 900mm, Min pipe
stiffness 320kpa
Dual-wall 300-750mm
Triple-wall 750-1500mm
Min. dia. 300mm under d/w
Min. dia. 400mm under
roads. PVC, Ribbed PVC,
or corrugated steel requires
approval from the
municipal engineer for
specific installations only.
Use HDPE in poor soils
Concrete = Q cast or PPP
33 44 01
Manholes and
Catchbasins
2.01
Products
2.1
Manholes and
Catch Basins
- Langley
Concrete
Group
- Ocean Pipe
- Diamond Pre-
cast
CSA, or Q-Cast or PPP
Certified.
2.1.7
Manhole Frame
and Cover
- Dobney
- Westview
Sales Ltd.
Refer to Supplementary
Standard Drawings for
required lettering on
Manhole Covers for
sanitary and storm sewers,
including in fish habitat
areas.
Schedule D | Approved Materials and Products
Page 10
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
2.1.7
Telescopic
Manhole Frame
and Cover
- Dobney
.
AJ633
All arterial roads must use
telescopic manhole frame.
2.1.13
Catch Basin
and Other
Castings
CB Frame
- Dobney
- Westview
Sales Ltd.
- B24
- TR24
Top Inlet Catch Basin -
MMCD Standard Drawing
S11.
CB Grate
- Dobney
- Westview
Sales Ltd.
- B23
- TR23R&L
Top Inlet Catch Basin -
MMCD Standard Drawing
S11.
CB Frame -
Side Inlet
Assembly
- Dobney
- Westview
Sales Ltd.
- B39A
- TR39A
Refer to Supplementary
Standard Drawings COQ-
S11A - Side Inlet Catch
Basin Assembly.
CB Grate - Side
Inlet Assembly
- Dobney
- Westview
Sales Ltd.
- B39
- TR39
Refer to Supplementary
Standard Drawings COQ-
S11A - Side Inlet Catch
Basin Assembly.
Curb Inlet
- Dobney
- Westview
Sales Ltd.
- B24FTH
- TR24C
Lawn Basin
Grate
(600mm Barrel)
- Dobney
- Westview
Sales Ltd.
- B22A
- TR22A
Lawn Drains - MMCD
Standard Drawing S12.
Lawn Basin
Grate
(300mm Barrel)
- Dobney
- Westview
Sales Ltd.
- D2A
- TR12
Lawn Drains - MMCD
Standard Drawing S12.
Bicycle Friendly
CB grate
- Dobney
- Westview
Sales
- B24A
- TR24A
Access Hatch
- MSU
Mississauga
- Bilco
- USF
Fabrication
- Flygt
Hydro-Dynamic
Grit Separator
- Langley
Concrete
Group
- Contech
- Stormceptor
- Vorsentry
- CDS
Schedule D | Approved Materials and Products
Page 11
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
33 49 23
Storm Drainage
Water
Retention
Systems
2.2
Polypropylene
Arched
Chamber
ADS
Cultec
Stormtech
902HD
Polyethylene
Arched
Chamber
Contech
Chambermaxx
HDPE Chamber
Brentwood
Industries
Stormtank
03 40 01
Precast
Concrete
Concrete MSE
Retaining Wall
- Allan Block
- Lock Block
Schedule D | Approved Materials and Products
Page 12
3. ELECTRICAL
The following apply to MMCD and Supplementary Specifications:
Section 26 42 13
Cathodic Protection
Section 26 56 01
Roadway Lighting
Ministry refers to the Ministry of Transportation.
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Pre-cast
Concrete Bases
Langley
Concrete Group
AE Concrete
Fraser Pre-Cast
Ministry approved product.
Concrete
Junction Box
Langley
Concrete Group
AE Concrete
Fraser Pre-Cast
Type 5686 with
galvanized steel
lid
Ministry approved product.
Plastic Junction
Box
West Coast
Engineering Ltd.
#25010 box
section with
#25310
galvanized steel
lid
Ministry approved product.
R.PVC Conduit
& Fittings
- IPEX
- NAPCO
Royal Pipe &
Fittings
To CSA C22.2 No. 211.2 &
C22.2 No. 5.
Trench Marker
Tape
- Brandy
Indentoline
- Panduit
- T&B
Yellow marked "danger
electrical."
Anchor Bolts
- West Coast
Engineering
Ltd.
- Nova Pole
International
Ministry approved product.
Poles
- West Coast
Engineering
Ltd.
- Nova Pole
International
- Polecom
Ministry approved product
except for powder coating.
Signal Head
C/W Visors
- Econolite
- Eagle
Aluminum or
Poly, Green or
Yellow
Ministry approved product.
Colour must be uniform for
complete intersection.
Schedule D | Approved Materials and Products
Page 13
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Aluminum
Yellow
Backboard
- Econolite
- Eagle
Ministry approved product
with 50mm wide ASTM VI
retro-reflective tape around
the outer edge.
LED Traffic
Signal Displays
- Dialight
XL15, Tined
Lens
No substitutions
Bi-Modal
Yellow/Green
LED Arrow
Display
- Dialight
Ministry approved product.
Green LED
Arrow Display
- Dialight
Ministry approved product.
Overlay
Hand/Person
Pedestrian LED
Signal Display
- Gelcore
- Dialight
16" x 18"
Ministry approved product.
Countdown
Pedestrian LED
Display
16" x 18" Overlay
Countdown
Overhead
Signal Head
Adjustable
Bracket
- Econolite
- Electromega
- ITS
- Pelco-Astro
Brac
- Pelco-Astro
Brac
Cable Mount Bracket
Assembly.
Side Signal
Head Mounting
Greenlite Traffic
GEL 189
Ministry approved product.
Audible
Pedestrian
Signal
Pushbuttons
Polara
Engineering Inc.
Astrographic
Industries
RTB APS
Navigator or
iNavigator
RTB-APS
Complete
Yellow housing with
walking man symbol.
Pedestrian
Pushbuttons
Polara
Engineering Inc.
Bull Dog model
BDLM2
Momentary LED Model
with Yellow Housing.
Cobra Head
Luminaires
LED
Roadway
Lighting
NXT Series
LED Only. Supplied and
wired to accept photocell
where required.
Type A 175W
Sign Luminaire
- Holophane
- GE
- Predator
MoTH
PD175MV12K
W4G
- Versaflood II
Sign Lighter
V2FS17M1A1
PSN4GRP
c/w SOW
Cable
Ministry approved product.
Photocell
Precision
Multiple
Controls Inc.
8690N
(105-285V)
To ANSI C136.10.
Schedule D | Approved Materials and Products
Page 14
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
LED Lamps
- LED
Roadway
Lighting -
NXT series
-
3000K Low
Volume
-
4000K
Arterial &
Controlled
Intersection
HPS/HID No Longer
permitted for New
Development
Decorative LED
Fixtures
- Lumca
-
CPL Series
Service Panel
-
Valid
Manufacturi
ng Ltd.
-
MMCD
Spec
Conductor Tags
Andec Agencies -
A400Y
Fuses (10A)
- Buss
- Gould
Shawmut
- BAN-10
- OTM
Fuse Holders
- Tron
- Gould Shaw
- HEB-AA
- GEB-AA
Light Pole
Security
- TransCanada
Traffic
- WireSentry
Light Pole
Hand-Hole
Covers
- Nova Pole
- Valmont
-
Nova Lock
Security
-
Valmont
Tamper
Resistant
Hand Hole
Cover
Extruded
Aluminum
Signs (advance
warning signs)
- Astrographic
Industries
- Valley
Inprotect
- Sherine
Ministry Specifications
(ASTM sheeting)
Illuminated
Pedestrian
Crosswalk
Signs
Valid
Manufacturing
Interprovincial
Traffic Systems
PED3x4DLMH
LED down light supplied.
Autoscope Solo
Terra Cable for
Video Detection
Cameras
- Vision
- Econolite
#1175-010 or -
011, 3
conductor, 18
AWG, 600V
Polyethylene
jacket, rated for
conduit
Opticom Pre-
emption Cable
- 3M Opticom
cable
700 series
Model 138
764 Detector Cards
Battery Backup
-
Alpha
Schedule D | Approved Materials and Products
Page 15
MMCD
Section
Section
Description
Product
Manufacturer
Approved
Model
Restrictions/Additional
Specifications
Radio
Communication
-
Encom
5.8 GHz
4. LANDSCAPING
Where brand names are specified for a product, any proposal for an alternate product requires
the approval of the Manager of Parks Design and Development.
The Manager may vary the requirements of Schedule D in circumstances that he considers it to
be appropriate.
Product Name
Manufacturer/Supplier
Model Name and
Number
Comments
Benches
Benchworks
Teak Heritage
Natural
Murrayville
Murray's Corner
Frances Andrew
24 Series
Model G24322
Surface mount Black
Brookswood
200 Street
C10-3A
With Fort Langley
cast inset legs
Fort Langley Downtown
C10-3A
Walnut Grove
88 Avenue
Centennial C22-3A
Black
East - West greenways in
Northeast Yorkson
Pipeline
P15-76 with arms
Black
Aldergrove
On 272 Street between
29 Avenue - Bertrand Creek
Pipeline
P15-76 armless
Grey
Walnut Grove
88 Avenue
S4-61
Murrayville Core
Habitat
Victor Stanley
Goblet FR-7 6' Black
East -West greenways in
Southwest Gordon Estates and
Northeast Yorkson
Victor Stanley
Classic C-138 6'
black
North-South Greenways
Southwest Gordon 200 Street
Northeast Yorkson 200 Street
Schedule D | Approved Materials and Products
Page 16
Product Name
Manufacturer/Supplier
Model Name and
Number
Comments
Playtech
Urban Accessories
Transit Bay
With back - Black
Without back- Black
Aldergrove
Fraser Highway
270 Street - 273 Street
Sudden Fun
Prestige PP301D
Green
Willowbrook
197 Street and 198 Street
64 Avenue - Willowbrook Drive
Wishbone
Bayview
BV-6 Black with tan
Slats
Willoughby
Northeast Gordon Estates
Greenways 72 Avenue, 70
Avenue, 68 Avenue
208 Street, 207 Street, 206
Street
Northwest Yorkson Greenways
84 Avenue, 82 Avenue, 80
Avenue, 200 Street, 208 Street
Bike Rack
Cora
W4508 Black
Confirm bike capacity with
Green Infrastructure Services
Playtech Distributers Inc.
Heritage Castings &
Ironworks 9410,
Black
Aldergrove on Fraser Highway
Between 270 Street and 276
Street
Fort Langley Downtown
Frances Andrew Site
Furnishings Ltd.
E12 BRO1 - Black
Brookswood
Frances Andrew Site
Furnishing,
L24-32TOL,
Glossy black
Fort Langley Downtown
Doggy bag Dispensers
MBM Metal Fabricators
Model: G3
(6x4x15 T Shirt
Bags)
Doggy Bags
Polypak Ltd.
T-Shirt bags,
TS-0615 WH
Drinking Fountain
Frances Andrew Site
Furnishings Ltd.
DF-2-BF-BH, Glossy
Black
Free standing drinking fountain
with bottle filler and dog bowl
attachment lug.
Fence Post Bracket
Country Lumber
Simpson Strong Tie
CBSS NER-422 -
6mm
Geotextile
Fabric/Filtercloth
Nilex
C-34/4533 non-
woven
Schedule D | Approved Materials and Products
Page 17
Product Name
Manufacturer/Supplier
Model Name and
Number
Comments
Granular Surface
Course
Jack Cewe
Rock Dust
Pipeline Pit Coquitlam
See Specs for sieve
requirements
Not suitable for Equestrian
Trails
Lehigh
10mm Screenings or
Crusher Dust
Skyway or Sechelt Pit
See Specs for sieve
requirements
Suitable for Equestrian Trails
Mainland Sand and Gravel
9mm minus
See Specs for sieve
requirements
Suitable for Equestrian Trails
Irrigation
Rainbird
Potted Latching
Solenoid
Solenoid
TBOS Rain Shut-off
Device
Moisture Monitor
TBOS - multi
station, battery
operated
Valve controller
Schedule 40 PVC
unless otherwise
designated
Nipples and fittings
PVC 1120 or 1220
Class 200, Class 60
or as indicated on
drawings
Pipe
#5RC
Quick coupler
Rotary nozzles
PGA-PRS solenoid
Valve with PRS Dial
NDS
NDS Model 1324,
drop in stainless
steel bolt down
cover
Valve box
Multi-stream waste
receptacle
To be specified by the
Township of Langley
To be specified by
the Township of
Langley
To be installed by the
Township, unless otherwise
noted by the Manager, Green
Infrastructure Services
Padlocks
Habitat Systems Inc.
Acklands Granger - Surrey
SM52 #1 Master
Key
For bollards, doggy bag
dispensers and gates
Paving Support
Deep Root Products
Silva Cell™
Tree Installation
Paving Support
Deep Root Products
Silva Cell™
Tree Installation
Picnic Table
Sanderson Concrete Inc.
Standard or
accessible Columbia
table plain concrete
seats with cedar top
Pre-cast sign post
footing
Ericsson Manufacturing Ltd.
B-37 kg
For ToL dome signs
Schedule D | Approved Materials and Products
Page 18
Product Name
Manufacturer/Supplier
Model Name and
Number
Comments
Reflective Tape
(MMCD 32 31 13)
Acklands Grainger
3M dealers
General products
3M diamond 100mm
wide red reflective
tape 981-32-4x50
Bollards, gate
Rigid cell pavers
Nilex
Tufftrack Grassroad
pavers
Emergency access across
greenway
Presto GeoBlock Rigid
Paving System
Geoblock Porous
Pavers
Emergency access across
greenway
Playtech Distributers Inc.
Grass Pave2
Emergency access across
greenway
Root barrier
(MMCD 32 93 01)
Deep Root Products
UB 12-2
UB 18-2
Tree installation see detail for
depth
Vespro Inc.
RS-12
RS - 18
Tree installation see detail for
depth
Security Nut
OEM Hardware
½" Triple Groove Security Nut
113-7GN
3/8" Triple groove
security nut
Part No. 316-TGN
Sign installation, bench
installation, bike rack
installation
Structural Soil
(MMCD 32 91 21)
Veratec (Formerly
Yardworks)
Sure Base
10 cubic meters of growing
medium (not including
aggregate) required per tree
Topsoil
(MMCD 32 91 21 - 2.10)
Veratec (Formerly
Yardworks)
Growing Medium
Must conform to relevant
specification section
Richmond Energy Garden
and Compost (formerly Fraser
Richmond Soil and Fibre)
Growing Medium
Must conform to relevant
specification section
Eco-Soil
Growing Medium
Must conform to relevant
specification section
West Creek Farms
Growing Medium
Must conform to relevant
specification section
Gawley and Sons
Growing Medium
Must conform to relevant
specification section
Alnor
Growing Medium
Must conform to relevant
specification section
Tree Grate
(MMCD 32 93 01)
Dobney Foundry Ltd.
Dobney Foundry Ltd
SP48,
Black
Tree strapping
(MMCD 32 93 01)
Dinesen Nurseries
50mm - woven
polyester banding
Tree installation
Tree trunk protector
(MMCD 32 93 01)
Pacific Arborist Supplies
ArborGuard + AG 9-
4
Tree installation
NorthWest Landscape &
Stone Supply
ArborGuard + AG 9-
4
Tree installation
TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE E
ACCEPTED STREET TREES
AND
PLANTS NOT ACCEPTED FOR USE
SCHEDULE E
ACCEPTED STREET TREES AND
PLANTS NOT ACCEPTED FOR USE
TABLE OF CONTENTS
E1.
Accepted Street Trees ............................................................................... 2
E2.
Plants Not Accepted For Use In Public Landscape Areas ....................... 14
Schedule E | Trees and Plants | Page 2
E1. ACCEPTED STREET TREES
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Very Large
Aesculus x
Carnea 'Briotti'
Ruby Red
Horse Chestnut Up to 80
10-12
Moderate
Dense
Red
Yellow
See end of
table3
Large
Abies grandis
Grand Fir
25
10-12
Moderate Moderate
-
-
See end of
table3
Large
Acer rubrum
'Autumn Flame'
Autumn
Fantasy Maple
15
10-12
Fast
Moderate
-
Bright red
-
Large
Acer rubrum x
freemanii
'Jeffersred'
Autumn Blaze
Maple
15
10-12
Moderate Moderate
-
Orange-
red
-
Large
Acer
saccharum
Sugar Maple
20
10-12
Moderate
Dense
-
Yellow
Red
Stronger &
slower than
Norway
Maple
Large
Betula nigra
River Birch
12-20
10-12
Fast
Moderate
-
Yellow
See end of
table3
Large
Cercidiphyllum
japonica
Katsura Tree
15-20
8-10
Slow
Open
-
Scarlet
Protect from
hot sun and
dry wind
Large
Davidia
involucrata
Dove Tree
10-20
10-12
Moderate Moderate White
-
Large brown
fruit hangs
on over
winter
Large
Fagus sylvatica
European
Beech
10-20
12-15
Slow
Dense
-
Bronze
Leaves
purple or
copper
Large
Fagus sylvatica
'Dawyck Purple'
Dawyck Purple
Beech
20
8-10
Slow
Moderate
-
Dark
purple
-
Large
Fagus sylvatica
'Purpurea'
Purple
European
Beech
10-20
12-15
Slow
Dense
-
Bronze
Leaves
purple or
copper
Large
Fagus sylvatica
'Riversii'
Rivers Purple
Beech
10-20
12-15
Slow
Dense
-
Purple-
bronze
Purple
foliage
Schedule E | Trees and Plants | Page 3
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Large
Fraxinus
americana
'Empire'
Empire Ash
20
8-10
Moderate Moderate
-
Rusty
purple
Seedless
Large
Fraxinus
pennsylvanica
'Marshall'
Marshall's Ash
15-25
10-12
Moderate
Dense
-
Yellow
Few or no
seeds
Large
Ginkgo biloba
Maidenhair
Tree
12-18
12-15
Slow
Open
-
Yellow
-
Large
Gleditsia
triacanthos
inermis
'Shademaster'
Honey Locust
10-18
10-12
Fairly
rapid
Open
-
Yellow
Upright
Large
Gleditsia
triacanthos
inermis
'Skyline'
Skyline
20
10-12
Fairly
rapid
Open
-
Yellow
Dark green
leaves
Large
Gleditsia
triacanthos
'Suncole'
Sunburst Honey
Locust
10-18
10-12
Fairly
rapid
Open
-
Yellow
Yellow
Large
Magnolia
grandiflora
Evergreen
Magnolia
20-40
8-10
Slow
Moderate Large
creamy
-
-
Large
Phellodendron
amurense
Cork Tree
9-14
9-15
Moderate
Open
Yellow-
green
Yellow
Fragrant leaf,
interesting
bark
Large
Quercus
coccinea
Scarlet Oak
10-22
10-12
Moderate Moderate
-
Scarlet
For median
use only
Large
Quercus
garryana
Oregon White
Oak
6-15
10-12
Moderate Moderate
-
-
Roots non-
aggressive,
deep1
Large
Quercus
palustris
Pin Oak
12-27
10-12
Moderate
Dense
-
Scarlet
Horizontal
branching2
Large
Quercus
phellos
Willow Oak
6-20
10-12
Fairly
rapid
Moderate
-
Yellow
Fine texture
foliage1
Schedule E | Trees and Plants | Page 4
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Large
Quercus rubra
Red Oak
25
12-15
Rapid
Dense
-
Red
See end of
table3
Large
Quercus
shumardii
Shumard Oak
15
10-12
Moderate Moderate
-
Red
Dark green
foliage1
Large
Robina
pseudoacacia
cultivaris
Black Locust
10-15
10-12
Fast
Moderate
-
Yellow
See end of
table3
Large
Thuja plicata
Western Red
Cedar
25
10-12
Rapid
Open
-
-
See end of
table3
Medium to
Large
Catalpa
speciosa
Northern
Catalpa
12+
8+
Moderate-
fast
Moderate
Orchid
shaped
white
Yellow
Greenways
parks
Medium to
Large
Prunus
serrulata
'Amanogawa'
Amanogawa
Cherry
10-22
10-12
Moderate Moderate
Pale
pink
Red
Bronze
foliage
Medium
Acer x
freemanii
Scarlet Sentinel
Maple
13
8-10
Moderate Moderate
-
-
Medium
Acer
platanoides
'Crimson King'
Crimson King
Maple
15-25
10-12
Moderate
Dense
-
Red
Brown
-
Medium
Acer
platanoides
'Crimson
Sentry'
Crimson Sentry
Maple
12
8-10
Moderate Moderate
-
Deep
purple
-
Medium
Acer
platanoides
'Deborah'
Deborah Maple
13
8-10
Moderate Moderate
-
Bronze
Early reddish
leaves, turn
bronze-green
Medium
Acer
platanoides
'Drummondii'
Variegated
Maple
10
8-10
Moderate Moderate
-
Yellow
-
Medium
Acer
platanoides
'Emerald
Queen'
Emerald Queen
Maple
10
8-10
Moderate Moderate
-
Yellow
-
Schedule E | Trees and Plants | Page 5
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Medium
Acer
platanoides
'Fairview'
Fairview Maple
15
8-10
Moderate Moderate
-
Yellow
Reddish new
growth,
bronze-green
mature
growth
Medium
Acer
platanoides
'Princeton Gold'
Princeton Gold
Maple
13
8-10
Moderate Moderate
-
Yellow
-
Medium
Acer
platanoides
'Summershade'
Summershade
Maples
11
12
Moderate Moderate
-
Yellow
Light green
Medium
Acer
pseudoplatanus
Sycamore
Maple
12
10-12
Moderate
Dense
-
Yellow
-
Medium
Acer
pseudoplatanus
'Atropurpureum'
Spaethii Maple
12
10-12
Moderate
Dense
-
Yellow
Purple
underside of
green leaf
Medium
Acer rubrum
Red Maple
13
10 - 12
Fairly
Rapid
Dense
-
Red
-
Medium
Acer rubrum
'Autumn Flame'
Autumn Flame
Maple
12
8-10
Moderate Moderate
-
Red
Medium
Acer rubrum
'Bowhall'
Bowhall Maple
13
8-10
Moderate Moderate
-
Yellow
orange
reddish
orange
-
Medium
Acer rubrum
'Karpick'
Karpick Maple
15
8-10
Moderate Moderate
-
Yellow to
orange
-
Medium
Acer rubrum
'Morgan'
Morgan Maple
14
10-12
Moderate
Dense
-
Orange-
red
-
Medium
Acer rubrum
'October Glory'
October Glory
Maple
6 - 16
8-10
Moderate Moderate
-
Deep red
-
Medium
Acer rubrum
'Red Sunset'
Red Sunset
Maple
11
8-10
Moderate Moderate
-
Red
-
Schedule E | Trees and Plants | Page 6
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Medium
Acer truncatum
'Norwegian
Sunset'
Norwegian
Sunset Maple
14
8-10
Moderate Moderate
-
Red
-
Medium
Acer truncatum
'Pacific Sunset'
Pacific Sunset
Maple
10
8-10
Moderate Moderate
-
Red
-
Medium
Acer x
freemanii
'Jeffersred'
Autumn Blaze
Maple
10
8-10
Moderate Moderate
-
Orange-
red
-
Medium
Carpinus
betulus
European
Hornbeam
13
8-10
Moderate
Dense
-
Yellow
-
Medium
Carpinus
betulus
'Fastigiata'
Pyramidal
European
Hornbeam
11
8-10
Moderate
-
-
Yellow
-
Medium
Carpinus
betulus
'Fastigiata'
Fastigiate
Hornbeam
10
8-10
Moderate
Dense
-
Yellow
-
Medium
Carpinus
betulus 'Frans
Fontaine'
Frans Fontaine
Hornbeam
15
8-10
Moderate Moderate
-
Yellow
-
Medium
Catalpa
bignoides
Catalpa/Indian
Bean Tree
8-12
8+
Moderate-
fast
Moderate
Orchid
shaped
white
Yellow
Smaller than
speciose,
greenways
parks
Medium
Catalpa
bignoides
'Aurea'
Golden
Catalpa/Golden
Indian Bean
Tree
8-12
8+
Moderate-
fast
Moderate
Orchid
shaped
white
Yellow,
reddish
tinge in
spring
Smaller than
speciose,
greenways
parks
Medium
Cedrus
atlantica
Atlantic Cedar
13
10-12
Slow
Open
-
-
See end of
table3
Medium
Cercis
canadensis
Eastern
Redbud
12
10-12
Fairly
rapid
Open
Purple
pink
Yellow
Some
horizontal
branching in
age
Medium
Chamaecyparis
nootkatensis
Yellow Cedar
15
8-10
Slow
Moderate
-
-
Graceful3
Schedule E | Trees and Plants | Page 7
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Medium
Cladrastis
kentukea'
Yellowwood
8-12
8+
Moderate Moderate White
Yellow
All areas but
medians
Medium
Cladrastis
kentukea
Perkins Pink'
Perkin's Pink
Yellowwood
8-12
8+
Moderate Moderate
Pink
Yellow
All areas but
medians
Medium
Fagus sylvatica
Golden
Fastigiate
Beech
10
8-10
Slow
moderate
-
Yellow
-
Medium
Fagus sylvatica
'Fastigiata'
Dawyck Beech
12
8-10
Moderate Moderate
-
Purple
-
Medium
Fraxinus
americana
White Ash
6-12
10-12
Fairly
rapid
Dense
-
Purple
-
Medium
Fraxinus
americana
'Autumn
Applause'
Autumn
Applause Ash
12-15
10-12
Rapid
Dense
-
Purple
-
Medium
Fraxinus
excelsior
European Ash
12
10-12
Fairly
rapid
Open
-
Yellow
Male,
seedless
variety
Medium
Fraxinus
excelsior
'Westhof's
Glorie'
Westhof's Glory
Ash
12-15
10-12
Rapid
Open
-
Yellow
-
Medium
Fraxinus
oxycarpa
Raywood Ash
15
10-12
Rapid
Open
-
Yellow
-
Medium
Fraxinus
pennsylvanica
'Patmore'
Patmore Green
Ash
13
10-12
Moderate
Open
-
Yellow
Seedless
Medium
Fraxinus
pennsylvanica
'Summit'
Summit Ash
15
10-12
Moderate
Open
-
Yellow
Seedless
Medium
Ginkgo biloba
'Princeton
Sentry'
Princeton
Sentry
Maidenhair
14
10-12
Moderate
Open
-
Bright
yellow
-
Schedule E | Trees and Plants | Page 8
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Medium
Gleditsia
triacanthos
'Halka'
Halka Honey
Locust
15
10-12
Moderate
Open
-
Yellow
-
Medium
Halesia
monticola
Mountain Silver
Bell
13
10-12
Moderate
Open
White
Yellow
-
Medium
Liriodendron
tulipifera
Tulip Tree
10-18
12-15
Fairly
Rapid
Dense
-
Yellow
Unique tulip-
shaped
leaves3
Medium
Liriodendron
tulipifera
'Fastigiatum'
Columnar Tulip
Tree
13
12-15
Fairly
rapid
Dense
-
Yellow
Unique tulip-
shaped
leaves3
Medium
Liquidambar
styraciflua
American
Sweet Gum
12-18
10-12
Moderate
Dense
-
Scarlet
Bark deeply
furrowed
Medium
Liquidambar
styraciflua
'Worplesdon'
Worplesdon
Sweetgum
10-20
10-12
Moderate Moderate
-
Orange
Purple
-
Medium
Metasequoia
glyptostroboides Dawn Redwood
8-15
12-15
Rapid
Moderate
-
-
Deciduous
conifer3
Medium
Nyssa sylvatica
Black Gum
13
10
Slow
Moderate
-
Hot
coppery
red
-
Medium
Oxydendrum
arboretum
Sourwood
7-12
4-8
Very slow Moderate-
Dense
White
Red
Stunning fall
colour, all
areas but
medians
Medium
Parrotia persica
Persian
Ironwood
7-12
7-10
Slow
Moderate
Yellow
Orange
Red
Low
branching
vibrant fall
colour3
Schedule E | Trees and Plants | Page 9
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Medium
Pseudotsuga
menziesii
Douglas Fir
15
10-12
Moderate
Open
-
-
BC native
tree3
Medium
Quercus
palustris
'Pringreen'
Green Pillar Pin
Oak
12-18
3-5
Moderate Moderate
-
-
Showy fall
colour, all
areas
Medium
Quercus
shumardii
Shumard Oak
10
10-12
Moderate
Open
-
Scarlet
For median
use only
Medium
Zelkova serrata
'Green Vase'
Green Vase
Zelkova
25
10-12
Fairly
rapid
Dense
-
Yellow-
orange
Finer
textured
Small
Abies fraser
Fraser Fir
9
8-10
Moderate Moderate
-
-
See end of
table3
Small
Acer
buergeranum
Trident Maple
15-18
10
Moderate
Open
-
Red
Orange
Consider for
R-CL
compact and
rowhouse
lots
Small
Acer campestre
'Evelyn'
Queen
Elizabeth Maple
8
10
Moderate Moderate
-
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Acer davidii
Snake Bark
Maple
10
10-12
Moderate
Dense
-
Yellow
Purple
Consider for
R-CL
compact and
rowhouse
lots
Small
Acer ginnala
Amur Maple
10
8-10
Rapid
Dense
-
Scarlet
See end of
table3
Small
Acer griseum
Paperbark
Maple
6
8-10
Moderate
Open
-
Red
Consider for
R-CL
compact and
rowhouse
lots
Small
Acer negundo
Box Elder
10
8-10
Fast
Open
-
Yellow-
green
Consider for
R-CL
compact and
rowhouse
lots
Small
Acer palmatum
Japanese
Maple
6
8-10
Moderate
Open
-
Depends
on variety
Consider for
R-CL
compact and
rowhouse
lots
Schedule E | Trees and Plants | Page 10
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Small
Acer
platanoides
'Columnar'
Columnar
Maple
13
8-10
Moderate Moderate
-
Dark
green
Stiff parallel
branches
Small
Acer
platanoides
'Globosum'
Globe Norway
Maple
14
10-12
Fairly
Rapid
Dense
Yellow
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Amelanchier
canadensis
Shadblow
Serviceberry
4
8-10
Slow
Open
White
Yellow
Red
Consider for
R-CL
compact and
rowhouse
lots
Small
Amelanchier
laevis
Allegany
Serviceberry
5-8
8 - 10
Fairly
rapid
Moderate White
Yellow
Red
Consider for
R-CL
compact and
rowhouse
lots
Small
Carpinus
japonica
Japanese
Hornbeam
6-10
8-10
Moderate
Dense
-
Bronze
Consider for
R-CL
compact and
rowhouse
lots
Small
Cercis
canadensis
Redbud
9
8-10
moderate
Dense
-
-
See end of
table3
Small
Chionanthus
virginicus
Fringe Tree
3-6
2.5-4
Slow
Moderate
Showy,
fragrant
white
Yellow
All areas but
medians
Small
Cornus florida
Flowering
Dogwood
6
8-10
Moderate
Dense
White
Scarlet
Consider for
R-CL
compact and
rowhouse
lots
Small
Cornus kousa
'Satomi'
Satomi
Dogwood
5-10
8-10
Moderate
Open
-
-
Consider for
R-CL
compact and
rowhouse
lots
Small
Cornus nuttallii
'Eddie's White
Wonder'
Pacific
Flowering
Dogwood
6
8-10
Moderate
Open
White
Red
Consider for
R-CL
compact and
rowhouse
lots
Small
Cornus rutgan
Stellar Pink
Dogwood
9
8-10
Moderate
Open
Light
pink
Bright
Red
Consider for
R-CL
compact and
rowhouse
lots
Small
Cratageus
crusgalli
Cockspur
Hawthorne
6
8-10
Moderate
dense
Small
white
-
Thorns, red
persistent
fruit3
Schedule E | Trees and Plants | Page 11
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Small
Cratageus
laevigata
Hawthorne
6
8-10
Moderate
dense
Scarlet
to rose
-
See end of
table3
Small
Crataegus
lavallei
Carriere
Hawthorn
10
8-10
Moderate
Dense
White
Bronze
Orange
persistent
fruit3
Small
Fraxinus
pennsylvanica
'Johnson'
Leprechaun
Ash
5-8
8-10
Moderate
Dense
-
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Koelreuteria
paniculata
Golden Rain
Tree
4.5-7
6-8
Slow-
moderate
Open
Showy
sulphur
yellow
Yellow
All areas but
medians
Small
Magnolia
'Galaxy'
Galaxy
Magnolia
6
8-10
Moderate Moderate
Red-
purple Reddish
Consider for
R-CL
compact and
rowhouse
lots
Small
Magnolia kobus Kobus Magnolia
9
10-12
Rapid
Moderate White
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Magnolia
sieboldii
Oyama
Magnolia
9-12
8-10
Moderate Moderate White
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Magnolia x
soulangiana
Saucer
Magnolia
9
8-10
Moderate
Open
White
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Magnolia
stellata
Stellar Pink
Magnolia
7
8-10
Moderate Moderate
Pink
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Malus
floribunda
Flowering
Crabapple
10
8-10
Moderate
Dense
White
Yellow
Deep pink
buds3
Small
Ostrya
virginiana
American Hop
Hornbeam
7-12
6-9
Slow
Moderate
-
Yellow
Seed pods
have winter
interest, all
areas
Schedule E | Trees and Plants | Page 12
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Small
Parrotia persica
Persian
Ironwood
4-8
8-10
Slow
Moderate
-
Yellow
Orange
Red
Only higher
branching
smaller
cultivars to
be used as
street trees
Small
Pinus contorta
Shore Pine
6-9
10-12
Moderate
Open
-
-
See end of
table3
Small
Prunus
'Newport'
Newport Plum
10
8-10
Moderate
Dense
Pink
Purple
Reddish-
purple
foliage3
Small
Prunus
serrulata
'Akebono'
Japanese
Flowering
Cherry
7
10-12
Moderate Moderate
Light
pink
Red
Consider for
R-CL
compact and
rowhouse
lots
Small
Prunus
serrulata
'Kwanzen'
Japanese
Flowering
Cherry
6-8
10-12
Moderate Moderate
Rosy
pink
Red
Bronze
foliage3
Small
Quercus robur
English Oak
6-8
10-12
Fairly
rapid
Open
-
Yellow
Brown
For median
use only
Small
Sorbus
aucuparia
Mountain Ash
9
8-10
Moderate
White
-
Red fruit3
Small
Stewartia
pseudocamellia
Japanese
Stewartia
5-8
8-10
Slow
Open
White
Orange-
red to
purple-
red
Consider for
R-CL
compact and
rowhouse
lots
Small
Styrax
japonicus
Snowdrop Tree
8
8-10
Slow to
moderate
Open
White
Yellow
Consider for
R-CL
compact and
rowhouse
lots
Small
Styrax obassia
Fragrant
Snowbell
7
8-10
Moderate
Dense
White
Yellow
Consider for
R-CL
complact and
rowhouse
lots
Schedule E | Trees and Plants | Page 13
Size
Botanical
Name
Common
Name
Height
m
Spacing
m
Tree
Form
Growth
Rate
Shade
Flower Autumn
Colour
Comments
Small
Syringa
reticulata
Ivory Silk Tree
7
8-10
Moderate Moderate Cream
-
Consider for
R-CL
complact and
rowhouse
lots
_____________________________
1 For median use only.
2 Use sparingly as a street tree and only where there is a wider boulevard.
3 Do not use as a street tree. Use only in the back of greenways or larger park areas.
Schedule E | Trees and Plants | Page 14
E2. PLANTS NOT ACCEPTED FOR USE IN PUBLIC
LANDSCAPE AREAS
Poisonous plants including, but not limited to, plants listed in Children's Playspaces and
Equipment CAN/CSA-Z614-98, shall not be permitted.
Invasive species are not permitted including, but not limited to:
SHRUBS
COMMON NAME
Buddleia davidii
Butterfly bush
Cytisus scoparius
Scotch broom
Daphne laureola
Spurge laurel
Fallopia japonica
Japanese knotweed
Heracleum mantegazzianum
Giant hogweed
Ilex aquifolium
English holly
Pinus mugo
Mugo pine
Viburnum opulus
Snowball bush
Viburnum tinus
Laurustina viburnum
Viburnum davidii
David viburnum
Bamboos including but not limited to Arundinaria spp.;
Bambusa spp. and Phyllostachys spp.
All bamboo plants
PERENNIALS
Clematis vitalba
Old man's beard
Foeniculum vulgare
Common fennel
Impatiens gladuifera
Policeman's helmet / Himalayan balsam
Iris pseudoacorus
Yellow flag iris
Lysimachia vulgaris
Garden loosestrife
Lythrium salicaria
Purple loosestrife
Nymphaea odorata
Fragrant water lily
Phalaris arundinacea
Reed canary grass/Ribbon Grass
Polygonum albertii
Silver lace vine
Senecia jacobea
Tansy ragwort
Verbena honariensis
Purple verbena
GROUNDCOVERS
Arctostaphylos uva ursa
Kinnickinnick
Festuca glauca
Blue fescue grass
Hedera helix
English ivy
Erica spp.
Heaths
Lamiastrum galeobdolon
Lamium / yellow archangel
Rubus discolor
Himalayan blackberry
Vinca spp.
Periwinkle
Schedule E | Trees and Plants | Page 15
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TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE F
SERVICING AGREEMENT
Schedule F | Servicing Agreement | Page 1
THE CORPORATION OF THE TOWNSHIP OF LANGLEY
S E R V I C I N G A G R E E M E N T
No. ____________________
between
THE CORPORATION OF THE TOWNSHIP OF LANGLEY
and
_________________________________________
Schedule F | Servicing Agreement | Page 2
THIS AGREEMENT
made this _____ day of __________, 20_ ;
BETWEEN:
THE CORPORATION OF THE TOWNSHIP OF LANGLEY, a
District Municipality incorporated under the Municipal Act of the
Province of British Columbia, and having its Municipal Offices at
20338 - 65 Avenue, Langley, British Columbia, (hereinafter
called the Municipality)
OF THE FIRST PART
AND:
(hereinafter called the Owner)
OF THE SECOND PART
WHEREAS:
A.
The Owner holds an interest in lands and premises within
the Township of Langley, in the Province of British
Columbia, more particularly known and described as
follows:
(hereinafter called the Lands)
B.
The Owner desires to subdivide the Lands or develop on
the Lands.
C.
The Approving Officer of the Municipality has agreed to
approve the subdivision of the Lands or the Building
Inspector has agreed to issue a building permit subject to
the terms and conditions contained in this Contract, the
posting with the Municipality of the Security Deposit
described herein and satisfaction of any other applicable
terms and conditions.
Schedule F | Servicing Agreement | Page 3
NOW THEREFORE THIS AGREEMENT WITNESSES that in consideration of the
promises, covenants and agreements hereinafter set forth, the parties hereto covenant,
agree, represent and promise as follows:
APPENDICES
1.
The following Appendices shall be read with and form part of this
Agreement:
Appendix "A" - A copy of the subdivision plan of the Lands or of
the Building Permit application;
Appendix "B" - A list of the Works and Services and an
estimate of their respective construction costs.
Appendix "C" - Design drawings to be used for the Works and
Services.
OWNER TO
DO WORK
2.
The Owner covenants and agrees to construct and provide all
the Works and Services listed and shown on Appendices "B"
and "C" hereto, as accepted by the Municipality, in accordance
with the standards contained in the Municipality's Subdivision
and Development Servicing Bylaw (hereinafter called the Bylaw).
The Owner shall from time to time and at all times so long as it
exercises any rights of ownership in the said Lands upon the
request of the Municipal Engineer, and to the satisfaction of the
Municipality make, do and execute or cause or procure to be
made, done and executed, all such further acts, deeds, rights-of-
way, easements and assurances for the more effectual carrying
out of this Agreement.
TRANSFER OF
INTEREST IN WORKS
3.
The Owner covenants and agrees with the Municipality to
assign, transfer and convey to the Municipality all of its right, title
and interest in the Works and Services on any and all of the
Lands, upon or in which the Works and Services are situated,
upon the completion of the Works and Services, (as witnessed
by the issuance of a Certificate of Substantial Completion).
PERMISSION TO DO
WORK
4.
The Municipality covenants and agrees to permit the Owner to
construct the Works and Services, including that portion of the
Works and Services to be constructed on dedicated Highways
controlled by the Municipality; on the terms and conditions
herein, as specified in Appendix C. Nothing in this Agreement
shall be construed as an undertaking, promise or covenant on
the part of the Municipality to make available the use of or
access to the Works and Services for any purpose, and without
limiting the foregoing, for the purpose of serving the Lands or
any other real property whatsoever either owned or controlled by
the Owner or its associates or otherwise, but rather the
Municipality reserves the right in its sole and absolute discretion
to make available, operate, alter, use, extend, diminish,
Schedule F | Servicing Agreement | Page 4
discontinue, tear up, sell, rent or otherwise dispose of the Works
and Services as the Municipality from time to time deems fit.
CHANGES TO BYLAWS 5.
The Owner covenants and agrees to comply with any changes in
requirements or standards enacted by bylaw prior to the
issuance by the General Manager Engineering of the
Municipality (hereinafter called the Municipal Engineer) of
Permission to Construct the Works and Services contemplated
by this Agreement.
LOT GRADING
6.
The Owner covenants and agrees to adhere in all respects to
the contours, elevations and drainage patterns indicated on the
lot grading plan which is attached to Appendix "C" to this
Agreement.
START OF WORK
7.
The Owner covenants and agrees not to commence work until
the Municipal Engineer provides the Owner with written
Permission to Construct.
COMPLETION OF
WORK
8.
The Owner shall complete the construction of the Works and
Services, specified in Appendix "C" as Project No.
_______________ of the Municipality to the satisfaction of the
Municipality, within one (1) year from the date of this Agreement.
In the event the landscape work cannot be completed due to
inclement weather conditions, the Security Deposit as required
in Clause 20 shall be renewed so as to include two complete
growing seasons.
OWNER TO GRANT
RIGHTS- OF-WAY
9.
The Owner covenants and agrees to grant to the Municipality all
necessary road dedications, statutory rights-of-way and
easements over the said Lands to accommodate the said Works
and Services and, where the said Works and Services are
located upon or under privately owned lands other than the said
Lands, to obtain at the Owner's expense and to the satisfaction
of the Municipal Engineer, all necessary road dedications,
statutory rights-of-way and easements over such Lands, in
favour of the Municipality where applicable, to accommodate the
said Works and Services.
DESIGN
10.
The Owner covenants and agrees that all Works and Services
required herein, except for trees, boulevard plantings, trails,
greenways, development fence, fence inset plantings and
associated irrigation (hereinafter called Landscape Works), shall
be designed by a Professional Engineer (hereinafter called the
Owner's Engineer) who shall be registered with the Association
of Professional Engineers and Geoscientists of British Columbia
and retained by the Owner and shall also be responsible for
inspection, testing and record keeping and other responsibilities
required of the Owner's Engineer according to the Bylaw. Plans
and specifications for the said Works and Services shall be
Schedule F | Servicing Agreement | Page 5
prepared by or under the direct supervision of the Owner's
Engineer and all plans shall bear his seal and signature.
The Owner covenants and agrees that all Landscape Works
shall be designed by a Landscape Architect who shall be
registered with the British Columbia Society of Landscape
Architects. Plans and specifications for Landscape Works shall
be prepared by or under the direct supervision of the said
Landscape Architect and all plans shall bear his seal and
signature.
The Owner covenants and agrees to ensure that the Owner's
Engineer maintains professional liability, and errors and
omissions insurance to a value of $1,000,000 per occurrence,
during the term of his engagement.
The Owner covenants and agrees to retain the Owner's
Engineer and Landscape Architect during the construction and
maintenance period for the purposes of inspection to ensure
compliance with the accepted design and to provide certification
of the record drawings and to perform other duties all in
accordance with the Bylaw.
DESIGN DRAWINGS
11.
The Owner covenants and agrees that the Owner shall construct
fully completed Works and Services, in accordance with sound
engineering and construction practice and in a good and
workmanlike manner and to the satisfaction of the Municipal
Engineer and in strict compliance with the plans and
specifications prepared by:
_______________________________________________
under Drawing Nos.:
and as accepted for the purposes of this Agreement by the
Development Engineering Department of the Municipality on the
_____day of ____________ , 20___.
Schedule F | Servicing Agreement | Page 6
CHANGES TO DESIGN
12.
If, as a result of errors, conflicts, inconsistencies or omissions in
design or of the discovery of previously unknown or concealed
conditions, it becomes necessary, or in the opinion of the
Municipal Engineer desirable, to make any change in the design
of all or a portion of the Works and Services, then installation of
the affected Works and Services shall be stopped pending the
Owner's Engineer's revision of the Accepted Drawings and their
acceptance in writing by the Municipal Engineer.
The Owner covenants and agrees not to make any changes to
the accepted design and specifications for any reason except as
approved by the Municipal Engineer in writing.
Should the Works and Services, as provided herein, prove to be
in any way defective or should they not operate to the
satisfaction of the Municipal Engineer, then the Owner shall, at
his own expense modify and reconstruct the Works and Services
so that the Works and Services shall be fully operative and
function to the satisfaction of the Municipal Engineer.
SUBSTANTIAL
COMPLETION
13a.
A Certificate of Substantial Completion shall be provided by the
Municipal Engineer in accordance with the Bylaw on the
completion of the construction (except for Landscape Works)
listing any deficiencies the correction or completion of which
Municipal Engineer permits to be deferred. The Certificate of
Substantial Completion shall not be construed as acceptance of
the Works and Services.
LANDSCAPE
COMPLETION
CERTIFICATE
13b.
A Landscape Completion Certificate shall be provided by the
Municipality on the completion of Landscape Works and upon
the correction of all deficiencies in such work.
RECORD DRAWINGS
AND TEST RESULTS
14.
The Owner covenants and agrees to submit to the Municipality
the final record drawings and records of construction, and test
results, as accepted by the Municipal Engineer, pursuant to the
Bylaw, within 60 days of the date of the Certificate of Substantial
Completion.
MAINTENANCE
PERIOD AND
RESPONSIBILITY
15.
The Owner covenants and agrees to maintain every part of the
Works and Services, except for Landscape Works, in perfect
order and in complete repair for a period of one year
(Maintenance Period) from the date shown on the Certificate of
Substantial Completion in accordance with the requirements of
the Bylaw and to make good, at its sole cost and expense, any
and all defects and deficiencies in the Works and Services
including without limitation defects and deficiencies arising from
or related to design, construction, installation and materials.If the
Municipal Engineer determines that any work completed, or
deficiencies or defects corrected, after the issue of the
Certificate of Substantial Completion are of major significance,
then the Maintenance Period for that work or correction including
Schedule F | Servicing Agreement | Page 7
any new materials supplied shall commence from the date the
Municipal Engineer accepts the completion of such remedial
work.
The Owner covenants and agrees to maintain the Landscape
Works for a period of one year from the date shown on the
Landscape Completion Certificate in complete accordance with
the requirements of the Bylaw.
Should the Owner, for any reason, fail to maintain when ordered,
then the Municipal Engineer, at his option, after giving the Owner
seven days written notice (emergencies excepted), may, but is
not obligated to, do so, and the whole costs, charges and
expenses so incurred by the Municipality shall be payable by the
Owner, as provided for herein. The decision of the Municipal
Engineer shall be final with respect to the necessity for repairs,
or the adequacy of any work done.
Once any watermains covered by this Agreement are connected
to the Municipal water system, only Municipal crews or
contractors under the direct supervision of the Municipality may
undertake work on such watermains. As such, Municipal crews
or contractors retained by the Municipality shall correct any
defects, imperfections, acts of vandalism, settlements and/or
rechlorination and flushing on such watermains which is deemed
by the Municipal Engineer to be necessary during the one year
period from the date shown on the Certificate of Substantial
Completion and the whole of such costs, charges and expenses
so incurred by the Municipality in undertaking such work
including but not limited to contractor costs shall be payable by
the Owner as provided for herein. Any rechlorination and
flushing work on any watermain shall be considered to be
"emergency" work and as such the Owner may not receive prior
notice that such work is being undertaken by the Municipality.
CERTIFICATE OF
ACCEPTANCE
16.
A Certificate of Acceptance shall be provided by the Municipality
in accordance with the Bylaw upon satisfactory completion by
the Owner of all of the covenants and conditions in this
Agreement, including the maintenance of the Works and
Services, correction of all deficiencies, receipt of record
drawings and service record cards, and the expiry of the
maintenance period, but excluding covenants and conditions
related to Landscape Works. All Works and Services remain at
the risk of the Owner until the Certificate of Acceptance for the
Works and Services has been issued.
The Municipality covenants and agrees upon satisfactory
completion by the Owner of all of the Landscape Works,
including the one year maintenance period, to provide the Owner
with a Landscape Acceptance Certificate, signed by the
Municipality. The Landscape Works remain at the risk of the
Schedule F | Servicing Agreement | Page 8
Owner until the Landscape Acceptance Certificate has been
issued. The development fence and fence inset plantings remain
the responsibility of the Owner in accordance with the terms of
the restrictive covenant registered against the property.
BUILDING PERMITS
17.
The Owner covenants and agrees that the Municipality shall not
issue building permits, except for show home, for lots within the
subdivision until all essential services have been completed and
accepted by the Municipal Engineer.
If the foregoing Works and Services have not been installed and
accepted, show home permits may be issued to a maximum of
10% of the lots in the register subdivision with a minimum of one
show home per subdivision. A building permit required for
renovation to, or moving of, an existing building within the
subdivision shall be considered a show home permit. All show
home permits shall be subject to provision of adequate access
for emergency vehicles and fire flow protection to the
acceptance of the Municipal Engineer.
When applying for show home permits, the Owner and Builder
must acknowledge on the standard form provided by the
Permits, Licence and Inspection Services Department that there
shall be no request for occupancy for final inspection until all the
foregoing Works and Services have been accepted by the
Municipality for the lots upon which the show homes have been
built.
The Owner covenants and agrees to inform any purchaser of a
lot within the subdivision of the restrictions with respect to
building permits set out in this section.
OWNER INDEMNIFIES
MUNICIPALITY
18.
The Owner covenants and agrees to save harmless and
indemnify the Municipality against:
(a) all actions and proceedings, costs, damages, expenses,
claims, and demands whatsoever and by whomsoever
brought by reason of the construction, installation,
maintenance or repair of the Works and Services;
(b) all expenses and costs which may be incurred by reason
of the construction, installation, maintenance or repair of
the Works and Services resulting in damage to any
property owned in whole or in part by the Municipality for
which the Municipality by duty or custom is obliged,
directly or indirectly, in any way or to any degree, to
construct, install, maintain or repair;
(c) all expenses and costs which may be incurred by reason
of liens for non-payment of labour or materials,
WorkSafeBC, Employment Insurance, Federal or
Provincial tax, check-off or encroachments owing to
mistakes in survey;
Schedule F | Servicing Agreement | Page 9
(d) all actions and proceedings, costs, damages, expenses,
claims and demands whatsoever and whomsoever
brought by reason of the Municipality, its officers,
employees, servants, agents and invitees reviewing,
accepting or approving the design, specifications,
materials and methods of construction and inspecting the
Works and Services and performing any work on
accordance with this Agreement
(e) all expenses and costs which may be incurred by the
Municipality as a result of faulty workmanship and
defective material in any of the Works and Services
installed by the Owner.
The above clauses shall not be construed as to extinguish any
rights which the Municipality would have were it not for the
inclusion of Clause 19 in this Agreement.
INSURANCE
COVERAGE
19.
Prior to the commencement of any work, the Owner shall obtain
and maintain in force during the term of the Servicing Agreement
and the completed operations period, a policy of insurance with
limits not less than those shown in the following items:
(a) Comprehensive Public Liability Insurance of at least
$3,000,000 on a per occurrence and limit basis. Any
deductible is the sole responsibility of the Owner.
(b) Motor Vehicle Insurance for public liability and property
damage providing coverage of at least $3,000,000
inclusive on owned, non-owned or hired vehicles.
(c) Completed operations coverage on a per occurrence and
limit basis of at least $3,000,000 for a period of 24
months. (usually 12 or 24 months)
In all policies of insurance providing coverage called for by this
clause (except motor vehicle insurance), the Municipality shall
be named as an additional insured, and all such insurance shall
contain a provision that the insurance shall apply as though a
separate policy has been issued to each named insured. In all
such policies, each contractor engaged in the Work shall be
named as an additional insured in respect of the performance of
the Work, and each such policy shall provide that no expiry,
cancellation or material change in the policy shall become
effective until after thirty days notice of such cancellation or
change shall have been given to the Municipality by registered
mail.
As a condition precedent to the issuing of Permission to
Construct, the Owner shall be required to deliver to the
Municipality an Insurance Certificate in a form acceptable to the
Municipality signed by a licensed insurance agent.
Schedule F | Servicing Agreement | Page 10
SECURITY DEPOSIT
20.
As security for the due performance of all of the covenants and
promises contained in this Agreement the Owner has forthwith
deposited with the Municipality a security deposit in the amount
of $__________ , in the form of cash or a Letter of Credit
acceptable to the Municipality (herein called the Security
Deposit).
FORFEIT OF SECURITY
DEPOSIT
21.
In the event that the Owner is in default of its obligations under
this Agreement including a failure to construct and install the
Works and Services prescribed herein within the time specified
in Clause 8, the said Security Deposit of $ __________ may be
forfeited to the Municipality.
The Owner shall be deemed to be in default of this Agreement if
the Owner files a voluntary petition of bankruptcy, or is
adjudicated bankrupt or insolvent, or files any petition or answer
seeking any reorganization, arrangement, liquidation, dissolution
or similar under any enactment respecting bankruptcy,
insolvency or other relief for debtors.
DESIGN BOND
22.
Where security is provided in lieu of accepted working drawings,
(hereinafter called a Design Bond) the Owner agrees to have the
working drawings completed to the satisfaction of the Municipal
Engineer within 90 days of the date of this Agreement. Failure to
do so shall result in forfeiture of the Design Bond in the amount
of $ __________ which shall be used by the Municipality to
complete the design. Once forfeited the bond becomes non-
refundable in whole or in part.
USE OF SECURITY
23.
If the Owner is in default of any of its obligations in respect to the
construction and installation of the Works and Services or any
portion thereof, the Municipality may cash the Security Deposit
to secure completion of all or a portion of the Works and
Services in compliance with the terms of this Agreement and any
payment obligations of the Owner in respect of the Works and
Services that remain unpaid including the discharge of any
builders' liens, and such monies shall be applied to remedy the
default and complete all or any portion of the Works and
Services and to satisfy the Owners warranties in respect of
same in place and stead of the Owner and ensure compliance
with the terms of this Agreement. In addition the Municipality
may cash, retain and use the Security Deposit to remedy any
emergency condition which, in the sole opinion of the Municipal
Engineer, is associated with, arises from or is a result of the
Works and Services and requires expedient action.
Notwithstanding the foregoing, the Municipality may cash, retain
or use the Security Deposit to pay, settle or compromise any
claim against the Municipality for which the Owner indemnified
the Municipality pursuant to Clause 18. If the proceeds from the
Security Deposit is not sufficient to pay all costs and expenses
incurred by the Municipality in completing all or a portion of the
Schedule F | Servicing Agreement | Page 11
Works and Services including the Municipality's normal
overhead charges and satisfying the warranties thereof, curing
other default by the Owner, or satisfying any amounts owing to
the Municipality pursuant to Clause 18 the Owner shall forthwith
pay to the Municipality the difference upon receipt from the
Municipality of invoices for the same together with all interest
thereon at the commercial prime rate of interest plus two percent
from the date of receipt by the Owner of the invoices for the
same and continuing until payment in full.
RELEASE OF
SECURITY
24.
If the Municipal Engineer is of the opinion that the Works and
Services or any portion thereof have been adequately
completed, and the Owner's covenants performed in compliance
with this Agreement, and if there is no litigation pending or
threatened by any third party against the Municipality as a result
of, or arising from, the construction of the Works and Services,
the Municipal Engineer may make, but is not obligated to, partial
or complete release of the security deposit in such amounts as
he may deem proper as follows:
(a) the Owner's Engineer shall prepare, certify and submit
an estimate of the quantity, value and percentage of the
Works and Services completed and upon verification by
the estimate, the Municipal Engineer may release
security to a maximum of 90% of the value estimated;
(b) partial release of security deposits shall not be made
more frequently than once per month;
(c) upon issuance of the Certificate of Substantial
Completion by the Municipal Engineer, the Municipality
shall reduce the deposit to 10% of all outstanding Works
and Services plus outstanding deficiencies and as-builts
and service record cards. This deposit shall be retained
to ensure payment of any maintenance or repair of the
Works and Services required during the maintenance
period as well as submission of as-built drawings and
service record cards. This deposit does not apply to
approved hydro or telephone or cablevision company
installations;
(d) notwithstanding subsection (c), any amount of the
deposit related to Landscape Works where landscape
security is greater than $100,000.00, draw downs are
based on completed works for a maximum of three (3)
draw downs. First drawn down at minimum 50%
completion for a minimum $50,000.00 and minimum of
$50,000.00 held until the Municipal Engineer issues the
Landscape Completion Certificate, at which time the
Municipality shall reduce that portion of the deposit to
10% of the deposit amount;
(e) any costs incurred by the Municipality which are
recoverable by the Municipality from the Owner, shall be
deducted from any authorized partial refund irrespective
Schedule F | Servicing Agreement | Page 12
of whether or not the recoverable amount relates to the
portion of work for which a partial refund was authorized;
(f) reductions in the security deposit may be denied if, in the
opinion of the Municipal Engineer, it would be reduced
below the amount required to cover the uncompleted
Works and Services. Security deposit reductions are for
the convenience of the Owner and shall not be taken as
acceptance of the material and work or as a release of
the Owner from his responsibilities for the Works and
Services;
(g) security held by the Municipality for hydro and telephone
and cablevision company installations shall be released
only upon written confirmation from the respective utility
companies stating that those works are complete and
constructed to their specifications.
RETURN OF
MAINTENANCE
SECURITY
25.
If the Municipal Engineer is satisfied that the Owner has
complied with the covenants contained in this agreement and if
there is no litigation pending or threatened by any third party
against the Municipality as a result of, or arising from, the
construction of the Works and Services, and the Municipal
Engineer has issued a Certificate of Acceptance, the
Maintenance Deposit shall be returned to the Owner and after
the Municipality has issued a Landscape Acceptance Certificate,
the Landscape Works maintenance deposit shall be returned to
the Owner and thereinafter the Owner's responsibility for the
Works and Services shall cease.
ADMINISTRATION FEE
26.
The Owner covenants and agrees to pay to the Municipality a
non-refundable fee in the amount of $ ____________ to cover
Municipal administration and processing costs. These fees are
payable prior to the signing of this Agreement or the
commencement of construction of the Works and Services.
CASH IN LIEU OF
CONSTRUCTION
27.
The Owner has made a non-refundable cash payment of
$ __________ , in the form of cash or certified cheque, to cover
the cost of required Works and Services considered by the
Municipal Engineer to be premature. This payment shall be used
by the Municipality at such time as the construction of the Works
and Services becomes feasible.
Schedule F | Servicing Agreement | Page 13
NO OTHER
REPRESENTATIONS
28.
It is understood and agreed that the Municipality has made no
representations, covenants, warranties, guarantees, promises or
agreements (verbal or otherwise) with the Developer other than
those in this agreement.
COMPLIANCE WITH
BYLAWS
29.
The Works and Services and the Development herein shall
comply with all of the bylaws of The Corporation of the Township
of Langley.
NO WAIVER
30.
The Owner covenants and agrees that nothing contained or
implied herein shall prejudice or affect the rights and powers of
the Municipality in the exercise of its functions under any public
and private statutes, bylaws, orders and regulations, all of which
may be fully and effectively exercised in relation to the said
Lands as if the Agreement had not been executed and delivered
by the Owner.
MUNICIPAL CHARGES
31.
The Owner covenants and agrees to pay the Municipality any
and all costs and expenses which the Municipality has incurred
in constructing watermain tie-ins, utility connections and any
other work undertaken by the Municipality on behalf of the
Owner. The payment for such work shall be made by the Owner
within 30 days of the date of the invoice, mailed to the Owner by
the Municipality. Upon receiving payment and upon request of
the Owner, the Municipality shall reduce the letter of credit for
the invoiced amount. Should payment not be received by the
Municipality within 30 days of the date on the Municipality's
invoice to the Owner, the Municipality shall draw the invoiced
amount from the Security Deposit posted by the Owner.
NO INTEREST
32.
The Owner agrees that no interest on the Design Bond, the
Security Deposits, or the Maintenance Securities shall be paid to
the Owner.
CONTRACTORS
33.
The Owner shall not employ any person or contractor who, in the
opinion of the Municipal Engineer is unfit or not skilled in the
work assigned to him and the Owner shall at all times, in
connection with the execution of the Works and Services, keep
and employ a competent general superintendent capable of
speaking, reading and writing English, and any explanations,
orders, instructions, directions and requests given by the
Municipal Engineer to the superintendent shall be deemed to
have been given to the Owner.
RELIANCE ON
ENGINEER
34.
The Owner covenants and agrees that the Owner relies
exclusively on his own engineer and contractor and that the
Municipality does not, by its approvals, inspections or
acceptance of the Works and Services, warrant or represent that
the Works and Services are without fault or defect and that all
approvals and inspection of the Works and Services given or
made by the Municipality are for the sole benefit of the
Schedule F | Servicing Agreement | Page 14
Municipality and shall in no way relieve or excuse the Owner
from constructing and installing the Works and Services in strict
compliance with the provisions of this Agreement.
ASSIGNMENT
35.
This Agreement shall not be assigned by the Owner without the
approval of the Municipal Engineer.
PRIME
CONTRACTOR
36.
Pursuant to Section 118 of the Workers Compensation Act,
R.S.B.C. 1996, c492 (as amended) (the "WCA") the parties
hereby acknowledge and agree that in respect of all matters
pertaining to the Works and this Agreement the Owner shall, for
the purposes of the WCA;
(a) appoint a prime contractor as defined in the WCA,
satisfactory to the Municipality and prior to the Owner
commencing the Works;
(b) ensuring that the prime contractor performs its function
as prime contractor pursuant to the WCA and the
Occupational Health and Safety Regulations, B.C. Reg.
296/97;
(c) obtain from the prime contractor, WorkSafeBC clearance
letters for all employers, contractors and subcontractors,
except for the Municipality, before such employer,
contractor or subcontractor commences the Works; and
(d) report to the Municipality, as required, with respect to the
prime contractor's performance under (b) above.
LATECOMER
CHARGES
37.
The Owner covenants and agrees that the Owner does not
consider any of the Works constructed or installed by the Owner
to be Excess or Extended Services pursuant to Section 507 of
the Local Government Act, as amended from time to time, and
further covenants and agrees that if any of the Works
constructed or installed by the Owner are determined to be
Excess or Extended Services pursuant to Section 507 of the
Local Government Act, as amended from time to time, then the
length of any obligation of the Municipality to collect latecomer's
charges shall not exceed fifteen (15) years after the date the
Works are constructed and installed and the Owner shall
reimburse the Municipality for any costs whatsoever incurred by
the Municipality in the preparation and administration of any
latecomer's resolutions and agreements including without
limitation legal, accounting, engineering, consulting and
administration costs (including those incurred internally by the
Municipality) and the Owner shall not, nor shall it permit the
registered Owners of the Lands to, apply for nor enter into any
latecomer agreements with the Municipality with respect to the
Works except in accordance with the provisions of this section
and the Owner hereby releases and discharges the Municipality,
its officers, employees, servants, agents and invitees and
covenants and agrees to indemnify and save harmless the
Municipality , its officers, employees, servants, agents and
Schedule F | Servicing Agreement | Page 15
invitees from and against all damages, losses, costs, actions,
causes of action, claims, demands and expenses (including
legal fees and litigation costs) which may arise or accrue to any
person, firm or corporation against the Municipality, its officers,
employees, servants, agents and invitees for which the
Municipality, its officers, employees, servants, agents and
invitees may pay, incur, sustain or be put to by reason of the
application of Section 507 of the Local Government Act as
amended from time to time.
WHENEVER
the word "shall" is used in this Agreement it shall be construed
as imperative (mandatory).
WHENEVER
the singular or the masculine is used in the Agreement it shall
be construed as meaning the plural or the feminine or body
corporate or politic where the context or the parties hereto so
require.
THIS CONTRACT
shall enure to the benefit of and be binding upon the parties
hereto, their respective successors and assigns.
IN WITNESS WHEREOF
the parties hereto have executed this contract the day and year
first above written.
FOR CORPORATE
BODY
SIGNED BY:
________________________________ )
)
In the presence of:
)
(witness):
)
Signature ____________________
)
Name ____________________
)
Address ____________________
)
Occupation ____________________
)
FOR PRIVATE
INDIVIDUAL
SIGNED BY:
________________________________ )
)
In the presence of:
)
(witness):
)
Signature ____________________
)
Name ____________________
)
Address ____________________
)
Occupation ____________________
)
Schedule F | Servicing Agreement | Page 16
FOR THE
CORPORATION OF
THE TOWNSHIP OF
LANGLEY
SIGNED BY GENERAL MANAGER,
)
ENGINEERING & COMMUNITY
)
DEVELOPMENT
)
For and on behalf of
)
THE CORPORATION OF THE
)
TOWNSHIP OF LANGLEY
)
)
)
GENERAL MANAGER, ENGINEERING )
& COMMUNITY DEVELOPMENT
SIGNED BY TOWNSHIP CLERK
)
For and on behalf of
)
THE CORPORATION OF THE
)
TOWNSHIP OF LANGLEY
)
)
)
TOWNSHIP CLERK
)
)
In the presence of:
)
(as to both Township signatures)
)
)
)
Name:
)
Address:
)
Occupation:
)
Schedule F | Servicing Agreement | Page 17
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TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE G
STANDARD FORMS
SCHEDULE G - STANDARD FORMS
TABLE OF CONTENTS
Standard Form F1
Certificate of Field Reviews1 .......................................................... 1
Standard Form F1A
Certificate of Test Results ............................................................. 2
Standard Form F2
Private Well Certification ............................................................... 3
Standard Form F3
Well Pump - Test Field .................................................................. 4
Standard Form F4
Well Pump - Drawdown and Recovery Graph ............................... 5
Standard Form F5
Well Pump - Test Summary .......................................................... 6
Standard Form F6
Cost Sharing Agreement ............................................................... 7
Standard Form F7
Insurance Certificate ..................................................................... 8
Standard Form F8
Drainage Certificate ...................................................................... 9
Standard Form F9
Commitment by Owner and Engineer .......................................... 10
Standard Form F10
Commitment by Owner & Landscape Architect ........................... 12
Standard Form F11
Certificate of Deficiency Inspection ............................................. 14
Standard Form F12
Certificate of SWM/Lot Grading ................................................... 16
Standard Form F13
Certificate of Substantial Completion Inspection ......................... 17
Schedule G | Standard Forms | Page 1
STANDARD FORM F1
CERTIFICATE OF FIELD REVIEWS1
By signing and sealing this Certificate I certify that all construction services required
under the Subdivision and Development Servicing Bylaw of the Township of Langley for
the subdivision of:
Legal Description:
Project No:
which services were approved for construction under drawing numbers:
Drawing No.
Date
Drawing No.
Date
have been field reviewed by or under my direction.
Further that the "Record Drawings" hereby submitted reasonably represent the Works
and Services as installed for the aforementioned subdivision or development. These
Works and Services were installed with sufficient field reviews to ascertain that the work
substantially complied in all material respects with the accepted design drawings, the
Langley Subdivision and Development Servicing Bylaw and as required by the Engineer
and Geoscientist Act Code of Ethics.
Signature:
Name:
Company:
Address:
Date:
1"field reviews" are defined to mean those reviews of the work:
(a) At the subdivision or development site approved for subdivision or development, and
(b) Where applicable, at fabrication locations where components are fabricated for use at the
site that a professional engineer in his or her professional discretion considers necessary
to ascertain whether the work substantially complies in all material respects with the
approved for construction drawings prepared by a professional engineer and approved
for subdivision or development.
Engineer's Seal
Schedule G | Standard Forms | Page 2
STANDARD FORM F1A
CERTIFICATE OF TEST RESULTS
By signing and sealing this Certificate I certify that all construction TESTING required
under MMCD and the Subdivision and Development Servicing Bylaw of the Township of
Langley for the Development of:
Legal Description:
Project No:
have been reviewed and accepted:
Item
Description
Date Accepted
1.
Green Infrastructure Services
Walkways/Trails (layout)
Fences (installed)
2.
Lot Grading
Certification
3.
Sanitary Sewers
Pressure Test
Video Inspection Tests
4.
Storm Sewers
Video Inspection Test
5.
Watermain
Pressure Test
Chlorination & Flushing
Bacteriological Test
6.
Road Base
Benkelman Beam Test
Density Tests on Trenches
Sieve Tests*
(base, sub base trench and pipe
bedding material)
7.
Density Testing
Sidewalks*
Curbs
Emergency Access
8.
Concrete Testing
Curb & Gutter
Sidewalks*
9.
Paving Testing
Core and Density Tests*
Asphalt Paving/Sampling Test*
*Includes material and concrete for meandering walkways or trails located within greenways.
Signature:
Name:
Company:
Address:
Date:
Engineer's Seal
Schedule G | Standard Forms | Page 3
STANDARD FORM F2
PRIVATE WELL CERTIFICATION
Pursuant to Schedule "B" of the Subdivision and Development Servicing Bylaw, which
requires that each lot to be created and/or each existing lot forming part of the proposed
Development can be serviced with potable water in accordance with the requirements of
the Bylaw for the Development of:
Legal Description:
Project No:
I certify that a quantity of not less than 2,500 litres per day has been proven for each
existing or proposed lot in the Development.
I certify that each well within the subdivision has been tested and is capable of
continuously providing water at a rate of 9 litres per minute for a four hour period.
I certify that the water has been tested and proven safe for human consumption by a
laboratory accredited by the B.C. Government for testing of potable water and is in
accordance with the Drinking Water Protection Regulation as though the source is a
water supply system regulated by the Drinking Water Protection Act, 2001.
I certify that the water has been tested for the aesthetic, microbiological, chemical and
physical parameters required to be tested for domestic water systems by the Drinking
Water Officer or Medical Officer of Health for the Fraser Health Authority and meets the
Guidelines recommended in the latest edition of the " Canadian Drinking Water Quality
Guidelines, Health Canada".
Professional Engineer responsible water sample collection for test:
Signature:
Name:
Company:
Address:
Date:
Form F-2 shall be submitted with completed sets of Forms F-3, F-4 and F-5 for each well
as required pursuant to Section W19 of Schedule "B".
Engineer's Seal
Schedule G | Standard Forms | Page 4
STANDARD FORM F3
WELL PUMP - TEST FIELD
OWNER'S NAME:
DATE:
APPLICATION NO:
WELL ID PLATE NO:
LOCATION:
TEST NO:
SHEET:
of
Drawdown
Recovery
Time
Depth
Draw
Flow
Reading
from
to
Down
Measurement
Comments
No
Start
Water
Data
min
m
m
min
l
lpm
Schedule G | Standard Forms | Page 5
STANDARD FORM F4
WELL PUMP - DRAWDOWN AND RECOVERY GRAPH
OWNER'S NAME:
DATE:
APPLICATION NO:
WELL ID PLATE NO:
LOCATION:
TEST NO:
SHEET:
of
10 minutes
4 hours
30 days
Dp
=
Depth of proposed pump suction
=
m
Dtw
=
Depth of static water level
=
m
S30
=
Drawdown at 30 days
=
m
D
=
Adjustment for seasonal decline
=
m
SF
=
Safety factor
=
1.0
Qh
=
Pumping rate
=
lpm
Sh1
=
Drawdown at 10 min
=
m
Sh2
=
Drawdown at 4h
=
m
For calculating drawdown values:
SL1
= (Qi/Qh) x Sh1
SL2
= (Qi/Qh) x Sh2
Tests run in
D
Use these estimate minimum adjustments
Aug Sep Oct
2.0 m
for seasonal decline (D) if other local data
Nov Dec Jan May Jun Jul
4.0 m
or hydrogeologist's opinion is not available:
Feb Mar Apr
6.0 m
Minimum available drawdown = Dp - (Dtw + S30 + D + SF) = ________ m
If the calculated minimum available drawdown is negative, then either the pump has to
be set lower or the well is not capable of supplying water for a house.
Schedule G | Standard Forms | Page 6
STANDARD FORM F5
WELL PUMP - TEST SUMMARY
OWNER'S NAME:
DATE:
APPLICATION NO:
WELL ID PLATE NO:
LOCATION:
TEST NO:
SHEET:
of
Well Completion Date
Screen Design (mark one)
Local Name &
Description of Aquifer
Depth ______________ m
Open Hole
Slotted Casing
___________________
Diameter ___________ mm
Screen
Gravel Pack
___________________
Static Water Level ____ m
Other ____________________
___________________
Screen interval ____ m to ____ m
___________________
Pump Test
Start:
Date (d/m/y) ___________________
Time (h:m) ___________________
Pump Type:
Elect submersible
Jet
Air lift
Other (describe): ________________________________________
Test pump set at _____ m below ground
Water level sounded by: Electric tape
Air bubbler
Steel tape
Other (describe): _________________________________________
Flow measured by::
Container & Watch Flow meter
Orifice & tube
Other (describe): _________________________________________
Test
Water Samples Taken During Test
Initial non-pumping level
________ m
Chemical Analysis
Yes
No
Constant rate of yield
________ lpm
Bacterial Analysis
Yes
No
Pump Test duration
________ h
Water Temperature _____________ °C
Drawdown at end of test
________ m
Any particular gas smells noted
Recovery duration
________ h
Level at end of test
________ m
Comments on clarity of water:
Recommended pumping rate
________ lpm
________________________________
________________________________
Other comments:
Schedule G | Standard Forms | Page 7
STANDARD FORM F6
COST SHARING AGREEMENT
Between:
The Corporation of the Township of Langley (Municipality) and
Name:
Address:
(Owner)
The Municipality agrees to pay up to the amount of $
towards the installation
described as:
3.
It is agreed between the parties to this agreement that the above amount paid shall be
full compensation for the excess capacity required by the Municipality and that all costs
associated in any way whatsoever with this installation which are in excess of the above
amount shall be the full responsibility of the Owner to pay.
2.
It is further agreed that the above amount will be paid as follows:
(a) Upon issuance of substantial completion
$ _________________
(b) Upon receipt of all "Record Drawings"
$ _________________
3.
It is agreed that it is the sole responsibility of the Owner to arrange for the design and
installation of the works according to Municipal requirements.
Owner's Signature
Municipal Engineer
Corporation of the Township of Langley
Signed, Sealed and Delivered by
the above named in the presence
of:
Name of Witness
Signature of Witness
Address of Witness
Date Signed
Schedule G | Standard Forms | Page 8
STANDARD FORM F7
INSURANCE CERTIFICATE
RE: OWNER:
TOWNSHIP PROJECT NO:
INSURANCE POLICY NO:
Pursuant to Schedule "F" of the Subdivision and Development Servicing Bylaw, the
Developer is required to obtain and maintain in force during the term of the Servicing
Agreement, an insurance policy acceptable to the Municipality.
I hereby certify that the attached insurance policy provides insurance coverage as
required pursuant to clause 19 of the Servicing Agreement between the Corporation of
the Township of Langley and the Owner and that the attached insurance policy is valid
for the period of the Servicing Agreement (one year).
Certified by:
Authorized Insurance Agent:
Company
Address:
***Insurance requirements pursuant to clause 19 of the Servicing Agreement***
Prior to the commencement of any work, the Owner shall obtain and maintain in force
during the term of the Servicing Agreement and the completed operations period, a policy
of insurance with limits not less than those shown in the following items:
a) Comprehensive Public Liability Insurance of at least $3,000,000 on a per occurrence
and limit basis. Any deductible is the sole responsibility of the Owner.
b) Motor Vehicle Insurance for public liability and property damage providing coverage
of at least $3,000,000 inclusive on owned, non-owned or hired vehicles.
c) Completed operations coverage on a per occurrence and limit basis of at least
$3,000,000 for a period of 24 months. (usually 12 or 24 months)
In all policies of insurance providing coverage called for by this clause (except motor vehicle
insurance), the Municipality shall be named as an additional insured, and all such insurance
shall contain a provision that the insurance shall apply as though a separate policy has been
issued to each named insured. In all such policies, each contractor engaged in the Work
shall be named as an additional insured in respect of the performance of the Work, and
each such policy shall provide that no expiry, cancellation or material change in the policy
shall become effective until after thirty days notice of such cancellation or change shall have
been given to the Municipality by registered mail.
As a condition precedent to the issuing of Permission to Construct, the Owner shall be
required to deliver to the Municipality an Insurance Certificate in a form acceptable to the
Municipality signed by a licensed insurance agent.
Schedule G | Standard Forms | Page 9
STANDARD FORM F8
DRAINAGE CERTIFICATE
RE:
DEVELOPER:
TOWNSHIP PROJECT NO:
Pursuant to Section D of Schedule "B" of the Subdivision and Development Servicing
Bylaw:
I hereby certify that downstream drainage facilities for a distance of 1.5 km have been
checked with respect to line, grade and size, and that the downstream facilities are
capable of handling the projected increase in drainage created by this project, without
causing any adverse effect to Municipal or private property.
Professional Engineer responsible for design:
Signature:
Name:
Company:
Address:
Date:
Engineer's Seal
Schedule G | Standard Forms | Page 10
STANDARD FORM F9
COMMITMENT BY OWNER AND ENGINEER
Township of Langley
Date:
Attn.
Re: Proposed Development of
This confirms that an agreement has been executed between:
Owner:
and
Owner's Engineer:
in connection with the above Development and provides for the Owner's Engineer to undertake,
directly or through sub-consultants, until a Certificate of Acceptance has been issued by the
Municipal Engineer of the Township of Langley, to:
1. review existing systems and design requirements, concepts and parameters with the
Municipal Engineer;
2. arrange for topographic, pick-up and legal surveys and environmental, geotechnical,
hydrogeotechnical, or other studies that may be necessary for satisfactory design or as
required by the Municipal Engineer;
3. submit conceptual designs if required by the Municipal Engineer;
4. submit detailed design plans and specifications in accordance with municipal bylaws and the
requirements of utility companies and government agencies and to the satisfaction of the
Municipal Engineer;
5. provide initial cost estimates and periodic cost estimates of uncompleted work to the
Municipal Engineer for calculation of security retention;
6. discuss the submissions under 3, 4 and 5 with municipal staff as required by the Municipal
Engineer;
7. attend pre-construction meeting as required by the Municipal Engineer;
8. undertake contract administration services using qualified personnel during construction and
the maintenance period including:
a) survey control to permit construction layout by contractors;
b) interpretation of plans and specifications;
c) periodic, or full time, resident field review as required by the Subdivision and
Development Servicing Bylaw (the Bylaw) to determine if the work substantially complies
in all material respects with the approved design and with municipal bylaws and with the
requirements of utility companies and government agencies;
d) giving advance notification of field reviews to the Municipal Engineer as required by the
Bylaw;
e) review and interpretation of test and field review reports;
f)
determination, and advising the Municipal Engineer, of corrective action required as a
result of c) and e);
g) keeping a record of site visits and any corrective action taken as a result of f);
h) attending construction progress meetings; and
i)
conducting final field review to identify deficiencies.
9. submit weekly summary reports during construction and the maintenance period including
test and field reviews and his review and interpretation thereof all as required by the
Municipal Engineer;
10. submit Field Review Certificates and other certifications required by the Bylaw;
11. conduct field reviews with the Municipal Engineer as required;
12. submit record drawings, service record cards and operation and maintenance manuals in the
form required by the Municipal engineer.
Schedule G | Standard Forms | Page 11
Reference to the Municipal Engineer above includes any person authorized to act on the Municipal
Engineer's behalf.
If sub-consultants, or others with specialist responsibility, are employed on components of the work,
the Owner's Engineer will act as the prime consultant for co-coordinating and reviewing overall
design, layout and field review and test reports, and for communicating with the Municipal Engineer.
The Municipal Engineer may request a summary of project's the Owner's Engineer and/or sub-
consultants have completed that are similar in scope, nature and value to the Works and Services.
The summary must include the names, curriculum vitae and employer of individuals assigned
responsibility for various aspects of the work.
The Owner's Engineer and each sub-consultant carries professional liability insurance of $1,000,000
per claim and commits to continue the insurance throughout construction and the maintenance
period.
We, the Owner and Owner's Engineer both acknowledge our separate responsibilities to each and to
notify the Municipal Engineer as soon as possible prior to, or, if that is not possible, within one
working day, if the Owner's Engineer ceases to be retained for all of the duties described or is
unable to carry them out. Notification will be in writing delivered to the Municipal office or transmitted
by fax.
I, the Owner's Engineer, will notify the Municipal Engineer as soon as possible prior to, or, if that is
not possible, within one working day, of a decision or circumstance that results in a sub-consultant or
other specialist ceasing to be retained on this project.
Name of Owner's
Engineer:
Signature of Authorized
Representative:
Address:
I/we the Owner will stop construction as soon as it is safe to do so in the event the Owner's Engineer
ceases to be retained, or is unable to carry out the described duties, until a new Commitment by
Owner and Engineer has been delivered to the Municipal Engineer and he has authorized work to
recommence. I/we will continue essential maintenance of the site.
I/we, the Owner, understand that the Municipality will rely on the expertise of the Owner's Engineer
in performing services referred to in this Commitment letter. I/we acknowledge that review and field
reviews by staff or others on behalf of the Municipality do not relieve the Owner from complying with
the requirements of the bylaws.
Name of Owner:
Signature of Authorized
Representative:
Address:
Engineer's Seal
Schedule G | Standard Forms | Page 12
STANDARD FORM F10
COMMITMENT BY OWNER & LANDSCAPE ARCHITECT
Township of Langley
Date:
Attn.
Re: Proposed Development of
This confirms that an agreement has been executed between:
Owner:
and
Owner's Landscape Architect:
in connection with the above Development and provides for the Landscape Architect to undertake,
directly or through sub-consultants, until a Landscape Acceptance Certificate has been issued by the
Municipality, to:
1. review existing landscape systems and design requirements, concepts and parameters with
the Municipality;
2. review topographic, pick-up and legal surveys and environmental, or other studies that may
be necessary for satisfactory design or as required by the Municipality;
3. submit conceptual designs if required by the Municipality;
4. submit detailed design plans and specifications in accordance with municipal bylaws and
Neighbourhood Plans to the satisfaction of the Municipality;
5. provide coordinated plans with other consultants, including, but not limited to, Civil and
Architectural.
6. provide initial cost estimates and periodic cost estimates of uncompleted work to the
Municipality for calculation of security retention;
7. discuss the submissions under 3, 4, 5, and 6 with municipal staff as required by the Municipality;
8. attend pre-construction meeting as required by the Municipality;
9. undertake contract administration services using qualified personnel during construction and
the establishment maintenance period including:
a) interpretation of plans and specifications;
b) periodic field reviews as required by the Subdivision and Development Servicing
Bylaw (the Bylaw) to determine if the work substantially complies in all material
respects with the approved design and with municipal bylaws and with the
requirements of Neighbourhood Plans;
c) giving advance notification of field reviews to the Municipality
d) review and interpretation of test and field review reports;
e) determination, and advising the Municipality, of corrective action required as a result
of b) and d);
f)
keeping a record of site visits and any corrective action taken as a result of e);
g) attending construction progress meetings; and
h) conducting final field reviews to identify deficiencies;
10. submit monthly summary reports during construction including test and field review reports
and review and interpretation;
11. submit bi-monthly summary reports through the Establishment Maintenance Period in the
growing season months of April through October (min 4 field reviews/summary reports to be
submitted during growing season);
12. submit Field Review Certificates and other certifications required by the Bylaw;
13. conduct field reviews with the Municipality as required, including but not limited to those
identified in Schedule C - Construction Requirements and Specifications,
14. submit record drawings and operation and maintenance manuals in the form required by the
Municipality;.
15. submit BCSLA Landscape Schedules L and C-L or off-site landscape works.
Schedule G | Standard Forms | Page 13
Reference to the Municipality above includes any person authorized to act on the Municipality's behalf.
If sub-consultants, or others with specialist responsibility, are employed on components of the
landscape works, the Landscape Architect will act as the prime consultant for co-coordinating and
reviewing overall design, layout and field review and test reports, and for communicating with the
Municipality.
The Municipality may request a summary of project's the Owner's Landscape Architect and/or sub-
consultants have completed that are similar in scope, nature and value to the Works and Services.
The summary must include the names, curriculum vitae and employer of individuals assigned
responsibility for various aspects of the work.
The Landscape Architect and each sub-consultant my carry professional liability insurance of
$1,000,000 per claim and commit to continue the insurance throughout construction and the
establishment maintenance period.
LANDSCAPE ARCHITECT AND HOMEOWNER INTERFACE
The Landscape Architect is to liaise with home owners at time of street tree planting and
fencing installation. This will entail; the notification of commencement of work; answer home owner
inquiries; and resolve home owner concerns. Modifications to the approved plans may be
considered provided they are acceptable to the Township of Langley and satisfy the intent of the
Bylaw.
We, the Owner and Landscape Architect both acknowledge our separate responsibilities to each and
to notify the Municipality as soon as possible prior to, or, if that is not possible, within one working
day, if the Landscape Architect ceases to be retained for all of the duties described or is unable to
carry them out. Notification will be in writing delivered to the Municipal office or transmitted by fax.
I, the Landscape Architect, will notify the Municipality as soon as possible prior to, or, if that is not
possible, within one working day, of a decision or circumstance that results in a sub-consultant or
other specialist ceasing to be retained on this project.
Name of Landscape Architect:
Signature of Authorized Representative:
Address:
Landscape Architect's Seal
I/we the Owner will stop construction as soon as it is safe to do so in the event the Landscape
Architect ceases to be retained, or is unable to carry out the described duties, until a new
Commitment by Owner and Landscape Architect has been delivered to the Municipality and he has
authorized work to recommence. I/we will continue essential maintenance of the site.
I/we, the Owner, understand that the Municipality will rely on the expertise of the Landscape
Architect in performing services referred to in this Commitment letter. I/we acknowledge that review
and field reviews by staff or others on behalf of the Municipality do not relieve the Owner from
complying with the requirements of the bylaws.
Name of Owner:
Signature of Authorized Representative:
Address:
Schedule G | Standard Forms | Page 14
STANDARD FORM F11
CERTIFICATE OF DEFICIENCY INSPECTION
By signing and sealing this Certificate I/We hereby advise that I/We have inspected the
deficiencies identified on the Township of Langley's substantial completion/final
inspection letter dated
and confirm all deficiencies have
been completed as identified below.
All items identified on the Inspector's deficiency letter must be addressed in the space
provided below. Ensure you complete a description of repair, or repair progress, in order
to continue with inspections at this project.
LEGAL DESCRIPTION:
PROJECT NO:
Deficiency
No.
Deficiency
Status
Description of Repair
I/We therefore request that the Township perform a deficiency inspection and proceed
with issuance of substantial completion/final acceptance.
Schedule G | Standard Forms | Page 15
NOTE: If the above deficiencies are found to be incomplete and, in the opinion of the
Municipal Engineer, a re-inspection is required, a re-inspection fee must first be paid
prior to any further municipal inspections.
Signature:
Name:
Company:
Address:
Date:
Engineer's Seal
Schedule G | Standard Forms | Page 16
STANDARD FORM F12
CERTIFICATE OF SWM/LOT GRADING
For the subdivision of:
LEGAL DESCRIPTION:
PROJECT NO:
By signing and sealing this Certificate I/We certify that the rough lot grading has been
completed in accordance with the attached Stormwater Management/Lot Grading Plan and
confirm that:
All final grades as shown on the stormwater management/lot grading plan dated
have been adhered to within a tolerance of ± 100 mm and
in no case alters from the effective function of the accepted stormwater management/lot grading
plan.
All developers' swales have been installed in accordance with the certified stormwater
management/lot grading plan.
All catch basins, lawn basins and associated pipework have been installed in accordance with
the certified lot grading and storm sewer drawings.
All sub surface storm sewer systems have been installed in accordance with the certified
stormwater management/lot grading plan.
Areas in which the depth of fill exceeds 0.5 m have been compacted in accordance with the
requirements stated on the stormwater management/lot grading plan or applicable soils report.
Signature:
Name:
Company:
Address:
Date:
Engineer's Seal
Schedule G | Standard Forms | Page 17
STANDARD FORM F13
CERTIFICATE OF SUBSTANTIAL COMPLETION INSPECTION
By signing and sealing this Certificate I/We hereby advise that we have submitted all
testing as indicated on the materials checklist issued at the pre-con meeting, provided
sufficient field reviews during construction, and have determined that all works and/or
deficiencies have been completed and/or rectified to the requirements of the Accepted
Drawings, Master Municipal Construction Documents (MMCD) and applicable Municipal
bylaws.
In accordance with Schedule C Section 1.26 of the Township of Langley Subdivision and
Development Servicing Bylaw 2018 No. 5382, as amended, I/We request that the
Municipality perform an inspection for Substantial Completion and attach a copy of the
deficiency list we provided to the contractor from our field review.
LEGAL DESCRIPTION:
PROJECT No:
Signature:
Name:
Company:
Address:
Date:
Engineer's Seal
Schedule G | Standard Forms | Page 18
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TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING BYLAW
SCHEDULE H
SUPPLEMENTARY DETAIL DRAWINGS
SCHEDULE H - SUPPLEMENTARY DETAIL DRAWINGS
TABLE OF CONTENTS
GENERAL NOTES AND NUMBERING SYSTEMS ........................................................................ 1
GENERAL SUPPLEMENTARY DRAWINGS ................................................................................. 3
TLG 01 - Typical Lot Service Connection .................................................................................... 4
TLG 02 - Sample Service Record Card ....................................................................................... 5
TLG 03 - Right-Of-Way Access ................................................................................................... 6
TLG 04 - Manhole Frame and Cover .......................................................................................... 7
TLG 05 - Heavy Industrial Area Of NW Langley - Overhead Distribution Wiring Permitted ......... 8
TLG 06 - Utility Trench for Rigid Pipe .......................................................................................... 9
ROAD SUPPLEMENTARY DRAWINGS ...................................................................................... 11
TLR 01 - Urban Arterial Roads - 6 Lane Divided + Bike Lanes ................................................. 12
TLR 02 - Urban Arterial Roads - 4 Lane Divided + Bike Lanes ................................................. 13
TLR 03 - Urban Arterial Roads - 4 Lane Divided ....................................................................... 14
TLR 04 - Urban Arterial Roads - 2 Lane Divided with Wide Curb Lane ..................................... 15
TLR 05 - Urban Arterial Road - 2 Lane Divided + 2 Bike Lanes ................................................ 16
TLR 06 - Urban Major Collector Residential Roads ................................................................... 17
TLR 07 - Urban Major Collector Road ....................................................................................... 18
TLR 08 - Urban Minor Collector Residential Roads ................................................................... 19
TLR 09 - Industrial / Commercial Roads ................................................................................... 20
TLR 10 - Local Residential Roads ............................................................................................ 21
TLR 11 - Local Industrial Roads ................................................................................................ 22
TLR 12 - Rural Roads ............................................................................................................... 23
TLR 13 - Limited Local Rural Roads ......................................................................................... 24
TLR 14 - Half Road ................................................................................................................... 25
TLR 15 - Lane ........................................................................................................................... 26
TLR 16 - Urban Cul-De-Sac ...................................................................................................... 27
TLR 17 - Rural Cul-De-Sac ....................................................................................................... 28
TLR 18 - Hammerhead Turnaround .......................................................................................... 29
TLR 19 - Temporary Urban Turnaround .................................................................................... 30
TLR 20 - Emergency Access .................................................................................................... 31
TLR 21 - Walkway with Fixed Baffle Barrier Installation ............................................................ 32
TLR 22 - Bollard - Removable Restriction Post ......................................................................... 33
TLR 23 - Modified Barrier Curb ................................................................................................. 34
TLR 24 - Utility Trench Pavement Restoration (Longitudinal / Crossing) ................................... 35
TLR 25 - Utility Trench Pavement Restoration (Longitudinal / Crossing) ................................... 36
TLR 26 - Pavement Cutting ...................................................................................................... 37
TLR 27 - Pavement Cutting ...................................................................................................... 38
TLR 28 - Typical Left Turn Lane ............................................................................................... 39
TLR 29 - 11.0m Urban Minor Collector Curb Extension ............................................................ 40
TLR 30 - Roundabout Detail - Collector, Collector ................................................................... 41
DRAINAGE SUPPLEMENTARY DRAWINGS .............................................................................. 43
TLD 01 - Storm Flow Control Manhole ...................................................................................... 44
TLD 02 - Storm Flow Control Chamber ..................................................................................... 45
TLD 03 - Outlet Structure .......................................................................................................... 46
TLD 04 - Swale ........................................................................................................................ 47
TLD 05 - French Drain .............................................................................................................. 48
TLD 06 - Exfiltration Trench ...................................................................................................... 49
TLD 07 - Rock Pit ..................................................................................................................... 50
TLD 08 - Drainage Drywell Installation ...................................................................................... 51
TLD 09 - Storm Sewer Service Connection ............................................................................... 52
TLD 10 - Storm Sewer Service Connection to Open Ditch and Drain ........................................ 53
TLD 11 - Curb Inlet Catch Basin ............................................................................................... 54
TLD 12(a) - Individual Lot Infiltration Facility Outside of Driveway ............................................. 55
TLD 12(b) - Individual Lot Infiltration Facility Under Driveway ................................................... 56
TLD 12(c) - Individual Lot Infiltration Facility ............................................................................. 57
SANITARY SEWER SUPPLEMENTARY DRAWINGS ................................................................. 59
TLS 01 - Sanitary Sampling Manhole ........................................................................................ 60
TLS 02 - MR-10 Locking Lid ..................................................................................................... 61
TLS 03 - Valve Box Cover ........................................................................................................ 62
TLS 04 - Private Residential Low Pressure Sanitary Service .................................................... 63
TLS 05 - Sanitary Air and Vacuum Valve Chamber .................................................................. 64
TLS 06 - Sanitary Blowdown Assembly .................................................................................... 65
WATER SUPPLEMENTARY DRAWINGS .................................................................................... 67
TLW 01 - Watermain Fitting Minimum Thrust Block Area .......................................................... 68
TLW 02 - Watermain Blow-Off .................................................................................................. 69
TLW 03 - Air and Vacuum Valve Chamber ............................................................................... 70
TLW 04 - Recommended Meter / Backflow / PRV Assembly Pattern ........................................ 71
TLW 05 - Typical Water Meter and Backflow Device Installations - Outside Setting .................. 72
TLW 06 - Water Meter Chamber for 25mm, 38mm, and 50mm Service Connections ............... 73
TLW 07 - Piping and Chamber Access Detail for 75mm to 250mm Water Meters - Outside
Setting ....................................................................................................................... 74
TLW 08 - Water Service Connection for Sprinklered Homes (38mm or 50mm) ......................... 75
TLW 09 - Piping Detail for 25mm to 50mm Water Meters - Inside Setting ................................. 76
TLW 10 - Piping Detail For 75mm To 250mm Water Meters - Inside Setting ............................ 77
TLW 11 - Piping Detail for 100mm to 250mm Fire Line Meters - Inside Setting ........................ 78
TLW 12 - Piping and Chamber Detail for 75mm to 250mm Water Meters - Bypass Inside ........ 79
TLW 13 - Minimum Clearance for Double Check Valve Assembly and Double Check Detector
Assembly Installations ............................................................................................... 80
TLW 14 - Minimum Clearances for Reduced Pressure Backflow Assembly and Reduced
Pressure Detector Assembly Installations ................................................................. 81
TLW 15 - Water Services for Boulevard Landscaping ............................................................... 82
TLW 16 - Residential Reduced Pressure Backflow Assembly ................................................... 83
STREET TREE AND BOULEVARD PLANTING SUPPLEMENTARY DRAWINGS ..................... 85
TLP 01 - Bench Installation ....................................................................................................... 86
TLP 02 - Picnic Table and Pad Installation ................................................................................ 87
TLP 03 - Rear Yard Boulevard Inset Planting Sequence ........................................................... 88
TLP 04 - Rain Garden Bollard ................................................................................................... 89
TLP 05 - Fence Layout - Rear and Side Yard ........................................................................... 90
TLP 06 - Fence - Rear Yard on Greenway / Local .................................................................... 91
TLP 07 - Fence - Chainlink ....................................................................................................... 92
TLP 08 - Fence Installation - Front Greenway ........................................................................... 93
TLP 09 - Fence - Access Barrier ............................................................................................... 94
TLP 10 - Fence Installation - Low Flow Channel ....................................................................... 95
TLP 11 - Fence Installation - Paige Wire with Single Rail .......................................................... 96
TLP 12 - Fence - Streamside .................................................................................................... 97
TLP 13 - Bollard at Greenway Crossings .................................................................................. 98
TLP 14 - Wood Notes ............................................................................................................... 99
TLP 15 - Sign Post Installation ................................................................................................ 100
TLP 16 - Multi-Stream Receptacle Concrete Pad .................................................................... 101
TLP 17 - Bike Rack Installation ............................................................................................... 102
TLP 18 - Asphalt Trail Construction ........................................................................................ 103
TLP 19 - Granular Trail Construction ...................................................................................... 104
TLP 20 - Rigid Grass - Emergency Access ............................................................................. 105
TLP 21 - Shrub and Groundcover Planting Installation............................................................ 106
TLP 22 - Tree Planting Notes .................................................................................................. 107
TLP 23 - Tree Planting Detail - Softscape ............................................................................... 108
TLP 24 - Tree Installation Detail in Paved Boulevard .............................................................. 109
TLP 25 - Typical Planted Median Installation .......................................................................... 110
TLP 26 - Typical Tree Setbacks / Clearances ......................................................................... 111
TLP 27 - Tree Protection Detail ............................................................................................... 112
TLP 28 - Urban Greenway Corridor Layout Guide .................................................................. 113
TLP 29 - Gate - Bicycle Stop Baffle ......................................................................................... 114
TLP 30 - Gate - Vehicle Swing ................................................................................................ 115
TLP 31 - Irrigation Notes ......................................................................................................... 116
Schedule H | Supplementary Detail Drawings
General Notes and Numbering Systems | Page 1
GENERAL NOTES AND NUMBERING SYSTEMS
The Supplementary Detail Drawings as contained in this Schedule are primarily concerned with
clarifying the Design Criteria. Construction details and practices are specified in the Standard
Detail Drawings in the Master Municipal Construction Documents (MMCD). The Supplementary
Detail Drawings are supplemental to the Standard Detail Drawings. However, in case of
conflict, the Supplementary Detail Drawings take precedence over the Standard Detail
Drawings.
The Standard Detail Drawing numbers in the MMCD are prefixed by a single letter to indicate
works or services. To avoid possible confusion, the Supplementary Detail Drawing numbers are
further prefixed by "TL". The 2 numbering systems are summarized as follows:
Supplementary Detail
Drawings
Standard Detail
Drawings in MMCD
General
TLG 1, 2, 3...
G 1, 2, 3
Road
TLR 1, 2, 3...
R 1, 2, 3
Drainage
TLD 1,.2,.3
S 1, 2, 3
Sanitary Sewers
TLS 1, 2, 3
S 1, 2, 3
Water
TLW 1, 2,3
W 1, 2, 3
Landscape
TLP 1, 2, 3
Concrete & Misc.
C 1, 2, 3
Electrical
E 1, 2, 3
Schedule H | Supplementary Detail Drawings
General Notes and Numbering Systems | Page 2
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Schedule H | Supplementary Detail Drawings
General Supplementary Drawings | Page 3
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Road Supplementary Drawings | Page 11
ROAD SUPPLEMENTARY DRAWINGS
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Schedule H | Supplementary Detail Drawings
Drainage Supplementary Drawings | Page 43
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Schedule H | Supplementary Detail Drawings
Sanitary Sewer Supplementary Drawings | Page 59
SANITARY SEWER SUPPLEMENTARY DRAWINGS
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Sanitary Sewer Supplementary Drawings | Page 66
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Water Supplementary Drawings | Page 67
WATER SUPPLEMENTARY DRAWINGS
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Water Supplementary Drawings | Page 84
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Schedule H | Supplementary Detail Drawings
Street Tree and Boulevard Planting Supplementary Drawings | Page 85
STREET TREE AND BOULEVARD PLANTING
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Street Tree and Boulevard Planting Supplementary Drawings | Page 117
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TOWNSHIP OF LANGLEY
SUBDIVISION AND DEVELOPMENT SERVICING
BYLAW
SCHEDULE I
TREE PROTECTION
Schedule I | Tree Protection
Page 2
SCHEDULE I
TREE PROTECTION
TABLE OF CONTENTS
1.
Definitions ......................................................................................................................... 1
2.
Application ........................................................................................................................ 4
3.
Prohibition ......................................................................................................................... 5
4.
Reconsideration ................................................................................................................ 6
5.
Report to Council .............................................................................................................. 6
6.
Development Applications ................................................................................................. 7
7.
Security ............................................................................................................................. 8
8.
General ............................................................................................................................. 9
Appendix A - Tree Protection Plan ...................................................................................10
Appendix B - Tree Replacement Plan ..............................................................................11
Appendix C - Tree Summary Schedule ............................................................................13
Appendix D - Tree Management Plan for Residential Developments of 5 or Less
Residential Units or Lots ..................................................................................................14
Schedule I | Tree Protection
Page 1
1.
DEFINITIONS
For the purposes of Schedule "I" the following definitions shall apply:
"Arborist" means an arborist certified by the International Society of Arboriculture.
"Community Plan" means a plan adopted by Council pursuant to Sections 472 and 473 of the
Local Government Act.
"Council" means the Council of the Corporation of the Township of Langley.
"Development Application" means an application submitted to the Municipality pursuant to
Development Application, Fee and Procedure Bylaw 1987 No. 2470, as amended and includes
an application for a Rezoning or Land Use Contract Amendment or Discharge, Heritage
Revitalization Agreement or Amendment, Heritage Alteration Permit, Development Permit,
Development Variance Permit, Temporary Use Permit or an application for a Subdivision.
"Developable Area" means the area of the subject property(ies) excluding greenway and park
dedication; streamside areas protected under restrictive covenant or dedication, and landscape
buffers (ALR and highway). Roads are required for a development and are included as
developable area in the Tree Protection Tree Replacement calculations.
"Development Permit Application" means an application submitted to Council for a
Development Permit, Development Variance Permit, Heritage Alteration Permit or Land Use
Contract Amendment not amending use or density.
"Final Landscape Plan" means a landscape plan and cost estimate submission that has been
reviewed and stamped as accepted by the Manager of Green Infrastructure Services.
"Integrated Site Design Concept" (ISDC) means a plan prepared by an Architect, Engineer,
Landscape Architect or Planner, registered with the applicable provincial professional
organization. The scale of the plan must match the scale of the Tree Survey. The primary
purpose of the ISDC is to integrate Significant Trees deemed suitable for retention, as identified
in a Tree Survey and Tree Evaluation Report, into an applicant's preliminary site Development
plans. The ISDC must show existing topographic elevations, the location of significant trees to
be removed and retained, proposed conceptual elevations of major development components,
proposed (ultimate) site grading within 10 metres of all proposed retained trees, the proposed
location of all underground servicing mainlines, the proposed location of buildings, driveways,
roadways, landscaped areas and detention/siltation ponds with required grade changes. The
siting of all development related components must utilize techniques designed to maximize the
retention, long term health and survival of Significant Trees identified for retention. An ISDC is
only required after an approval in principle meaning third reading of a rezoning bylaw application
or prior to development related permit approval."
"Manager of Green Infrastructure Services" means the Manager of Green Infrastructure
Services of the Municipality or designate.
"Municipality" means the Corporation of the Township of Langley.
#5839
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Schedule I | Tree Protection
Page 2
"Replacement Tree" means 2.5 metres in height evergreen trees and 6 cm caliper B&B
deciduous trees in equal proportions provided in accordance with Schedule B of this Bylaw.
"Retained and Replacement Tree Acceptance Certificate" means a certificate contained
within this Bylaw that is issued upon acceptance of all Schedule I requirements and which ends
the one year maintenance period and releases the remaining landscape security held.
"Retained and Replacement Tree Completion Certificate" means a certificate contained
within this Bylaw that is issued upon completion of all Schedule I requirements and which starts
the one year maintenance period and reduces the landscape security amount to ten (10)
percent.
"Rezoning Bylaw Application" means an application submitted to Council pursuant to
Development Application Procedures Bylaw 2018 No. 5428 as amended for a Rezoning Bylaw
Amendment, Heritage Revitalization Agreement or Land Use Contract Discharge or Amendment
changing use or density.
"Security" means the monies or Letters of Credit assuring the successful completion of all tree
retention, protection and replacement works and measures as required by this Bylaw; and
submitted in an amount acceptable to the Manager of Green Infrastructure Services. The
security may be held within a servicing agreement or independently when there is no servicing
agreement.
"Servicing Agreement" means an agreement between an Owner and the Municipality
securing Works and Services required to support a Development Application.
"Significant Tree" includes
a) all trees:
i. with a trunk diameter equal to or greater than 30 cm (12 inches) measured
1.4 meters above the highest point of the natural grade of the ground
measured from the base of the tree, and
ii. determined by a Landscape Architect or Arborist to be in "excellent" or
"good" condition, pursuant to Table 4.1 of the Guide for Plant Appraisal (10th
edition), as may be amended from time to time
b) the following trees over 3 m / 10' height: Arbutus, Garry Oak, Pacific Yew, all Pine, Western
Red Cedar, Douglas Fir and Grand Fir, Pacific Dogwood; Redwood and Sequoia,
Maidenhair and Monkey Puzzle or other non-native trees;
c) all 'heritage' trees designated by Council or identified in the Langley Heritage Listing;
d) alders, birch, big leaf maple and hemlock over 3 m / 10' height in designated greenways;
e) Significant Trees outside of the Developable Area must be identified and evaluated but are
not eligible for credit against tree replacement requirements.
"Street Tree" means a tree planted within a Municipal road allowance pursuant to the
Municipality's Street Tree and Boulevard Planting Policy.
"Top", "Topping" or "Topped" means the cutting or removal of the dominant leader or leaders
of a tree.
Schedule I | Tree Protection
Page 3
"Tree Evaluation Report" means a written report prepared by an Arborist or Landscape
Architect and submitted for review and acceptance by the Manager of Green Infrastructure
Services in which the overall health of trees and Significant Trees is discussed and good
candidates for retention identified. Each Significant Tree is to be tagged, numbered and
identified in the Tree Survey and is to be listed and evaluated individually in the Report with the
sequence of listed trees following a logical progression across the tree survey drawing. The
Tree Evaluation Report shall influence the Integrated Site Design Concept and Tree Retention
Plan including Development layout, the location of buildings, services, roads, driveways, utilities
and final grades. Evaluate trees in greenways, park dedications and streamside areas. Identify
trees suitable for retention and, trees that are hazardous trees. Make recommendations for tree
retention and tree removal.
"Tree Management Plan" means an overall plan prepared in accordance with this Schedule by
an Arborist or Landscape Architect and submitted for review and acceptance by the Manager of
Green Infrastructure Services which includes a Tree Survey, Tree Evaluation Report, Tree
Protection Plan, Tree Summary Schedule and Tree Replacement Plan.
"Tree Protection Plan" means a plan prepared in accordance with Appendix A of this
Schedule by an Arborist or Landscape Architect and submitted for review and acceptance by
the Manager of Green Infrastructure Services in which significant trees intended to be retained
and the methods to protect these trees during the land Development and building construction
process are identified.
"Tree Replacement Plan" means a plan prepared in accordance with Appendix B of this
Schedule by an Arborist or Landscape Architect, integrated with the landscape plan and
submitted for review and acceptance by the Manager of Green Infrastructure Services.
"Tree Summary Schedule" means a summary of tree survey, evaluation, retention,
replacement and protection data prepared in accordance with Appendix C of this Schedule by
an Arborist or Landscape Architect and submitted for review and acceptance by the Manager of
Green Infrastructure Services.
"Tree Survey" means a 600 x 800 mm (approximate) legible hardcopy drawing of the
Development Application site at a minimum 1:500 scale prepared and certified by a registered
B.C. Land Surveyor and includes all existing lot lines, rights-of-way, easements, lot lines for
greenway and streamside dedications, limits of ALR and highway buffers, spot elevations at
base of significant trees, existing street trees, watercourses, tops of bank, restrictive covenant
areas and all Significant Trees located within five (5) metres on adjacent properties, within the
outer ten (10) metres of a conservation area and all trees and Significant Trees located on
developable land outside of a conservation area which are tagged, numbered and correctly
labeled with common and scientific names and submitted for the review and acceptance by the
Manager of Green Infrastructure Services. The number and type of Significant Trees within a
conservation area and not located by survey, may be estimated. Large stands of cottonwood
and/or alder can be shown with canopy edge lines and an estimated number of trees provided
for each stand.
Schedule I | Tree Protection
Page 4
2.
APPLICATION
2.1
The provisions contained in this Schedule apply to all lands in the Municipality for
which a Development Application has been submitted
a) for multiple family, single family and comprehensive residential
Development Applications , including seniors, assisted living, congregate
care and community care Development Applications, at the time an
application for Rezoning is being considered by Council;
b) for all other Development Applications at the time an application for
Rezoning is being considered by Council, except where the lands are
designated as a mandatory development permit area and a restrictive
covenant has been registered against the title of each parcel, which is the
subject of the Development Application prohibiting the on-site clearing or
removal of any vegetation, the alteration of on-site grades, the removal or
deposition of soil or other materials from or to the Development site; or the
commencement or installation of on-site works, services or utilities until a
Development Permit has first been issued by Council;
c)
where rezoning is not required, at the time of Development Permit;
d) where a restrictive covenant is required in accordance with subsection b)
above, it shall be registered against the title of the property and a Tree
Survey submitted for review and acceptance of the Manager of Green
Infrastructure Services, prior to the Development Application being
submitted to Council for its consideration;
e) where a Development Permit has been issued for a portion of a lot, the
restrictive covenant referenced in subsection b) above may be amended to
apply only to that portion of the lot not covered by the Development Permit;
or
f)
at the time of subdivision when subsections a) to d) above do not apply.
2.2
Notwithstanding the above, the terms and conditions of this Schedule do not
apply to:
a) any trees other than Significant Trees as defined in this Schedule;
b) Trees located and protected within environmental areas, conservation
areas, non-disturbance areas or land to be dedicated or transferred to the
Municipality for park purposes;
c)
to trees and Significant Trees pruned, cut or removed pursuant to the Hydro
Power and Authority Act or pruned, cut or removed by the Municipality on
lands or rights-of-way owned or controlled by the Municipality;
d) lands in the Agricultural Land Reserve.
Schedule I | Tree Protection
Page 5
3.
PROHIBITION
3.1
No person shall cut, remove, relocate, knock down, "top" or damage any
Significant Tree or permit, cause or authorize any Significant Tree to be cut,
removed, relocated , knocked down, "topped" or damaged except where
permitted by and in accordance with the terms of this Bylaw.
3.2
No person shall permit, cause or authorize land or vegetation to be cleared, land
to be regraded, soil or any other substance to be removed or deposited, or works,
services or utilities to be installed that compromises or may compromise the
health or safety of any Significant Tree except where permitted by and in
accordance with the terms of this Bylaw.
3.3
No person shall permit, authorize or undertake servicing, construction or clearing
of any kind to commence, nor shall any building or other permit be issued that
allows for or results in the removal of vegetation, deposit or removal of soil or
other material, regraded or changing the contour of land, commencement of road
works, or the installation of works, services and utilities unless protective fencing
has been installed protecting Significant Trees and other trees to be retained,
greenways, conservation areas and parkland in accordance with the provisions of
this Bylaw, to the acceptance of the Manager of Green Infrastructure Services.
3.4
No person shall cut, remove, relocate, knock down, "top" or damage any tree or
Significant Tree or permit, authorize or cause any tree or Significant Tree to be
cut, removed, knocked down, "topped" or damaged in an environmental or
conservation area, greenway, buffer, public park, or on lands owned or to be
dedicated to the Municipality, without the written permission of the Manager of
Green Infrastructure Services. For tree removal from streamside areas on
private property, comply with Provincial Tree Replacement guidelines.
3.5
Notwithstanding Sections 3.1, 3.2 and 3.3 above, a Significant Tree:
a) may be pruned, but not "topped" where such pruning is required and carried
out using sound arboricultural practice; and
b) may be cut, removed or relocated with the written permission of and subject
to any conditions imposed by the Manager of Green Infrastructure Services,
including the planting of replacement trees or provision of monies in lieu,
where there is imminent danger of the tree or any part of the tree falling and
damaging the property or safety of individuals.
3.6
Notwithstanding Sections 3.1, 3.2 and 3.3 above, Significant Trees may only be
cut, removed or relocated, or land cleared, regraded, soil or other material
deposited or removed, or otherwise prepared for Development if a Tree
Management Plan has been submitted to the acceptance of the Manager of
Green Infrastructure Services and Council approval, where applicable, has
previously been granted. Only those significant trees shown on the tree
management plan for removal may be cut, removed or relocated. Significant
trees that are cut or removed which have been identified for retention to be
compensated at a 5:1 ratio or through a cash in lieu payment.
Schedule I | Tree Protection
Page 6
4.
RECONSIDERATION
4.1
Variations from this Schedule not accepted by the Manager of Green
Infrastructure Services as being consistent with the intent of this Schedule may
be appealed to Council by submission of a Development Variance Permit
Application and fee pursuant to provisions of the Municipality's Development
Application Procedures Bylaw 2018 No. 5428 as amended.
5.
REPORT TO COUNCIL
5.1
Where a Development Application has been determined to be inconsistent with or
fails to comply with the provisions of this Bylaw, the Community Development
Division Report to Council accompanying the Development Application and
related bylaw or permit shall indicate to Council the manner in which the
Development Application or related bylaw or permit is inconsistent with or fails to
comply with the provisions of this Bylaw, and what recommended penalty
amendments, or compensation is to be provided by the applicant if Council or the
Approving Officer were to give further consideration to the Development
Application.
5.2
Where Section 5.1 applies, Council or in the case of a subdivision, the Approving
Officer may consider:
a) that additional replacement trees be provided as compensation; or
b) a monetary amount in lieu be required as compensation; or
c)
further reviews be given to the Development Application, bylaw or permit; or
d) the denial of or an amendment to the Development Application, bylaw or
permit; or
e) any combination of a) to d) above.
Schedule I | Tree Protection
Page 7
6.
DEVELOPMENT APPLICATIONS
6.1
A Development Application must include submission of the following documents
to the acceptance of the Manager of Green Infrastructure Services:
a) a Tree Survey;
b) a Tree Evaluation Report; and
c)
a fully complete Tree Summary Schedule in accordance with Appendix C of
this Schedule.
Section 6.1 does not apply where:
a) a Development Application proposing to create five (5) or less single family
residential lots or multiple family units, in which case Appendix D of this
Schedule applies; or
b) the items described in Section 6.1 have previously been submitted and
considered by Council for the same site and continue to be acceptable to
the Manager of Green Infrastructure Services; or
c)
the Manager of Green Infrastructure Services has determined that
completion or submission of one or more of these items is unnecessary or
would serve no useful purpose.
6.2
Subject to Section 2.1, Council may refuse to consider final reading of a
Rezoning Bylaw Amendment, or issuance of a Development Permit, or the
Municipality's Approving Officer may refuse to give final subdivision approval until
all of the following have been submitted for review and accepted by the Manager
of Green Infrastructure Services:
a) a Tree Replacement Plan in accordance with Appendix B (where
applicable);
b) a Tree Protection Plan in accordance with Appendices A or D (where
applicable);
c)
a Final Landscape Plan (where applicable);
d) Security acceptable to the Manager of Green Infrastructure Services in
accordance with Section 7 (where applicable); and
e) written confirmation from the Owner and an Arborist or Landscape Architect
that the Arborist or Landscape Architect has been engaged to be
responsible for the implementation of the requirements of the Tree
Management Plan including tree identification, on-site protective fencing,
and conducting regular site reviews with monthly reports submitted to the
Manager of Green Infrastructure Services to ensure the requirements of the
approved Tree Management Plan and this Bylaw are adhered to. The
Arborist or Landscape Architect shall ensure that all retained and planted
trees are maintained within accepted arboricultural practices and standards.
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Schedule I | Tree Protection
Page 8
7.
SECURITY
7.1
Submission of a written cost estimate for all replacement trees, retained trees
and for on-site tree protection fencing. Retained trees that are in association with
an existing residence that shall be retained, on a new lot, do not need to be
included in the security calculations for existing trees.
For the purposes of Schedule I, security calculations, shall be provided as
follows:
a) Replacement Trees @ $500.00 each
b) Retained Trees located on lands or lots not to be dedicated as park or
conservation area or otherwise transferred to the Municipality @ $1,750.00
each
c)
Designated Heritage Trees @ $5,000.00 each
d) Protective Fencing of Retained Trees, conservation and environment areas,
greenways, parks, and buffers @ $25.00 per lineal metre of fence
e) For applications of 5 or less residential units or lots (Appendix D), security
for Retained Trees shall be capped at a maximum of $8,750 per lot even if
the number of Retained Trees exceeds 5 trees per lot.
7.2
Security shall be provided in the form of cash, certified cheque, bank draft or
letter of credit after a final Tree Management Plan is accepted, as follows:
a) in an amount equivalent to 100% of the Arborist's or Landscape Architect's
accepted estimate of the value of the tree protection, tree replacement and
landscape works including labour, installation and one-year maintenance
costs, to the acceptance of the Manager of Green Infrastructure Services;
b) in compliance with the Municipality's letter of credit requirements pursuant
to this Bylaw;
c) ten (10) percent of the security amount shall be held by the Municipality for
a one (1) year maintenance period following issuance of a Landscaped
Retained and Replacement Tree Completion Certificate; and
d) the security amount shall be incorporated within a Servicing Agreement
where one is required pursuant to this Bylaw, or where there is no Servicing
Agreement, by means of a Letter of Credit to the acceptance of the
Manager of Green Infrastructure Services. Administration fees as detailed
in this Bylaw shall be collected for all security held by Letter of Credit
outside of a Servicing Agreement.
The maintenance security holdback will be released at the end of the one
(1) year period following issuance of a Retained and Replacement Tree
Acceptance Certificate, after the establishment and good health of all
retained and replacement trees is confirmed.
Schedule I | Tree Protection
Page 9
8.
GENERAL
8.1
Street Trees shall be provided in addition to the requirements of this Schedule.
8.2
The requirements of this Schedule are in addition to landscape, screening and
fencing requirements of Zoning Bylaw No. 2500, as amended, the requirements
of a Development Permit, Development Variance Permit, Heritage Revitalization
Agreement or Heritage Alteration Permit, or the requirements of a Community or
Neighbourhood Plan.
8.3
Tree Retention shall be taken into consideration during the preparation of
Neighbourhood Plans.
8.4
The requirements of this Schedule are the responsibility of the applicant/Owner
and are non-transferable to subsequent builders or lot Owners
Schedule I | Tree Protection
Page 10
Appendix A - Tree Protection Plan
A Tree Protection Plan shall be prepared by an Arborist or Landscape Architect consistent with
the Integrated Site Design Concept previously accepted by the Manager of Green Infrastructure
Services and on which:
1.
the significant trees located on the development site, municipal dedication, or
environmental area, with their location, crown size, caliper and existing elevations in
relation to site Development components such as buildings, roads, driveways, fences,
detention/siltation ponds, utilities, service connections and proposed finished grade
elevations are clearly indicated;
2.
retained trees, including existing street trees, with appropriate protective fencing and
non-disturbance zones are clearly indicated;
3.
written assurance that all retained trees are clearly shown on Engineering Drawings to
ensure that proposed Engineering works can avoid tree locations;
4.
the Municipality's detail for tree protection fencing is included along with notes requiring
the protective fencing to be installed prior to clearing of the site, no storage of materials
within the protection fencing area and project specific notes regarding pruning or other
recommendations from the written Arborist's or Landscape Architect's Tree Evaluation
Report; and
5.
is submitted for review and acceptance by the Manager of Green Infrastructure
Services.
Schedule I | Tree Protection
Page 11
Appendix B - Tree Replacement Plan
1.
A Tree Replacement Plan shall be prepared by an Arborist or Landscape Architect at a
scale and orientation matching the tree survey and shall be submitted for review and
acceptance by the Manager of Green Infrastructure Services.
2.
The number of Replacement Trees to be provided shall be calculated on the basis of the
number of gross developable acres times thirty (30), minus three (3) times the number
of retained significant trees on the property. Land or significant trees located in
designated environmental areas, greenways or buffers shall not form part of the
calculation.
3.
Replacement Trees shall be:
a) a minimum of fifty percent (50%) conifer trees;
b) a minimum caliper and/or height in accordance with Appendix B Section 5
of this schedule;
c)
of a type and variety acceptable to the Manager of Green Infrastructure
Services; and
d) suitable for the site conditions and proposed use.
4.
Replacement Trees shall be planted in accordance with a Tree Replacement Plan
accepted by the Manager of Green Infrastructure Services:
a) on individual lots; or
b) in park, landscape, greenway, buffer or environmental areas within,
adjacent to or nearby the Development site; or
c)
in a combination of locations including other off-site locations acceptable to
the Manager of Green Infrastructure Services; or
d) where the Manager of Green Infrastructure Services has determined that
the planting of Replacement Trees would not be technically feasible or
would be premature, a cash in lieu payment in an amount equivalent to
120% of the estimated value of the Replacement Trees including labour
and installation, shall be paid to the Municipality to fulfill the replacement
tree requirements.
5.
Recommended Replacement Trees are:
a) Refer to Schedule B, Section L - Use the right tree for the right place.
Considerations for tree choice include: mature plant size; sightlines for
residents/building occupants/trail users; the anticipated maintenance level;
compatibility with light exposure and soil water conditions; resistance to
pests and disease, and; tolerance of disturbance such as foot traffic.
Schedule I | Tree Protection
Page 12
Evergreen Trees @ a minimum of 2.5 m ht.:
Abies amabilis - Amabilis Fir
Abies grandis - Grand Fir
Abies lasiocarpa - Alpine Fir
Chamaecyparis nootkatensis - Nootka Cypress
Larix occidentalis - Western Larch/West American Larch
Larix laricina - Tamarack/Hackmatack/American Larch
Picea engelmannii - Engelman Spruce
Picea glauca - Blue Spruce
Picea omorika var.- Serbian Spruce
Picea sitchensis - Sitka Spruce
Pinus contorta - Western Shore Pine
Pseudotsuga menziesii - Douglas-Fir
Taxus brevifolia - Pacific Yew
Thuja plicata - Western Red Cedar
Broadleaf Evergreen Trees @ 6 cm Cal.:
Magnolia grandiflora var. - Southern Evergreen Magnolia
Deciduous Trees @ 6 cm cal.:
Native Deciduous
Acer circinatum - Vine Maple
Cascara sagrada (Rhamnus purshiana) - Cascara
Cornus nuttallii - Pacific Dogwood
Sorbus americana - N. American Mountain Ash
Malus fusca - N. American Crab Apple/Oregon Crab Apple
Crataegus sp. - N. American hawthorn
Exotic Non-native Deciduous
Acer palmatum var. - Japanese Maple
Acer rubrum/griseum//ginnala/negundo/davidii, etc. - E. North American Maples
Cercis canadensis var. - Canadian Redbud
Cercidiphyllum japonica - Katsura
Cornus kousa - Kousa Dogwood (Korea, Japan)
Cornus X 'Eddies White Wonder'- N. American cultivar of C. florida and C. nuttallii
Davidia involucrate - Dove tree
Fraxinus oxycarpa 'Raywood' - Raywood Ash
Fagus sylvatica 'Riversii' - Rivers European Beech
Gleditsia triacanthos inermis 'Shade Master'/var. - Honey Locust
Liquidambar styraciflua - Sweet Gum
Liriodendron tulipifera - Tulip Tree
Magnolia stellata - Star Magnolia
Magnolia soulangiana var. - Saucer Magnolia
Malus sp. var. - ornamental flowering Crab Apples
Parrotia persica - Persian Ironwood
Prunus yedoensis 'Akebono'/Prunus blireiana - ornamental flowering Plums
Quercus sp. - Oak
Sorbus aucuparia - European Mountain Ash
Schedule I | Tree Protection
Page 13
Appendix C - Tree Summary Schedule
TOL Project #
Project Name:
Project Location:
Owner Name, Address, Telephone, Fax & Email:
SUMMARY OF SIGNIFICANT TREES IDENTIFIED, RETAINED, REMOVED & REPLACED
1.
Number of Significant Trees identified on developable site (from Tree
Survey)
Evergreen _______
Deciduous _______
2.
Number of Significant Trees to be removed
3.
Net number of Significant Trees to be retained and protected (1 minus 2)
4.
Number of Replacement Trees required =
a) (30 trees/acre x ____acres of gross developable land) - [minus]
b) (3 x total number of Retained Trees)
a)
minus
b)
= ___________
5.
Total number of Retained or Replacement Trees (3 + 4)
6.
Number of Replacement Trees to be planted on-site
7.
Number of Replacement Trees to be planted off-site
Proposed locations for replacement trees planted off-site:
8.
Number of Retained and Replacement Trees divided by # of Residential
Units (where applicable)
9.
Estimate of Number of Significant Trees in non-disturbance environmental
areas above the top of bank
10.
Number of Street Trees to be planted (estimate)
11
Total number of Trees in place following Development (5 + 10). This
excludes significant trees located in environmental areas and designated
buffers
Confirmation: I have reviewed the completed Appendix C above and I confirm its accuracy.
Name of Arborist or Landscape Architect:_________________________________________________
Company:__________________________________ Telephone:______________________________
Fax:___________________________ Email:_____________________________________________
Signature:__________________________________________Date:____________________________
(Arborist/Landscape Architect)
Confirmation: A certified Arborist or Landscape Architect identified above has been engaged to provide
monthly inspections and reports to confirm adherence to the accepted Tree Management Plan and
requirements of Schedule I of Bylaw No. 5382, as amended from time to time.
Signature
(Owner):_____________________________________________________Date:____________________
Schedule I | Tree Protection
Page 14
Appendix D - Tree Management Plan for Residential Developments of 5 or Less
Residential Units or Lots
The following requirements provide a simplified application of the Tree Protection Bylaw for
residential Developments of 5 or less residential units or lots. A Development Application
shall not be submitted to Council for consideration until Sections 1 to 5 of Appendix D have
been submitted for review and accepted by the Manager of Green Infrastructure Services.
1. Submission of a Tree Survey and site plan showing the location of tress and significant
trees on the property delineated with a circle or other appropriate symbol. Trees to be
removed should be shown with an X or other appropriate symbol over the top of the
location symbol. The plan should note the number of trees to be saved, removed or
relocated and the total number of significant trees on site.
2. Inclusion of the on-site Tree Protection Fencing Detail on the Tree Survey, if there are
existing trees to be retained.
3. Submission of a completed Tree Summary Schedule that includes the number of
replacements trees in compliance with Appendix B of this Bylaw that shall be planted by
the Owner.
4. Submission of a written cost estimate for all replacement trees, retained trees and for
on-site tree protection fencing. Retained trees that are in association with an existing
residence that shall be retained on a new lot do not need to be included in the security
calculations for Retained Trees.
5. For the purpose of Schedule I and Appendix D, security calculations shall be provided in
conformance with Section 7 of this Schedule I.