Subdivision and Development Servicing Bylaw No. 4353, 2017 (Consolidated)
Dawson Creek, British Columbia
· adopted 2017-07-17
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CONSOLIDATED VERSION
CITY OF DAWSON CREEK
SUBDIVISION AND DEVELOPMENT
SERVICING BYLAW NO. 4353, 2017
CONSOLIDATED FOR CONVENIENCE ONLY
This is a consolidation of the parent bylaw and the bylaws listed below. Amendments have been
incorporated with the parent bylaw for convenience only. This consolidation is not a legal document.
Certified copies of the original bylaws should be consulted for all interpretations and applications of the
subject bylaw.
Amendment Bylaw 4491, 2021
City of Dawson Creek
Subdivision and Development Servicing Bylaw
TABLE OF CONTENTS
PART 1
REPEAL ....................................................................................................................... 1
PART 2
CITATION ................................................................................................................... 1
PART 3
ADMINISTRATION ...................................................................................................... 1
PART 4
INTERPRETATION ...................................................................................................... 2
PART 5
CONNECTION TO COMMUNITY SYSTEMS .................................................................. 4
PART 6
SERVICING REQUIREMENTS FOR SUBDIVISIONS AND DEVELOPMENTS ................. 5
PART 7
FEES AND SECURITY .................................................................................................. 8
PART 8
GENERAL PROVISIONS ............................................................................................10
PART 9
ENFORCEMENT .........................................................................................................11
PART 10 EFFECTIVE DATE .......................................................................................................12
SCHEDULES
SCHEDULE A
WORKS AND SERVICES REQUIREMENTS
SCHEDULE B
WATER DISTRIBUTION
SCHEDULE C
SANITARY SEWER
SCHEDULE D
STORMWATER
SCHEDULE E
ROADS
SCHEDULE F
STREET LIGHTING
SCHEDULE G
LANDSCAPING
SCHEDULE H
SITE GRADING
SCHEDULE I
QUALITY CONTROL
SCHEDULE J
STANDARDS FOR SUBMISSION BY DEVELOPER
SCHEDULE K
SUPPLEMENTARY DETAIL DRAWINGS
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
CITY OF DAWSON CREEK
SUBDIVISION AND DEVELOPMENT SERVICING BYLAW NO. 4353, 2017
A bylaw to regulate and require the provision of services in respect of subdivision and development
within the City of Dawson Creek.
WHEREAS pursuant to the Local Government Act, a local government may, by bylaw, regulate and require
the provision of works and services in respect of the subdivision and development of land.
NOW THEREFORE the Council of the City of Dawson Creek, in open meeting assembled, HEREBY ENACTS as
follows:
PART 1
REPEAL
1.1
Subdivision and Development Servicing Bylaw No. 4176, 2013 and all of its amendments are hereby
repealed.
PART 2
CITATION
2.1
This Bylaw may be cited for all purposes as "Subdivision and Development Servicing Bylaw No.
4353, 2017".
PART 3
ADMINISTRATION
Application
3.1
This bylaw applies to all land within the boundaries of the City of Dawson Creek.
3.2
Schedules A-K, attached hereto, form an integral part of this bylaw.
Minimum Parcel Highway Frontage
3.3
Council hereby delegates to the Approving Officer the power to exempt a Parcel from the
statutory or bylaw minimum frontage provided for in the Local Government Act.
Standards of Measure
3.4
Any equivalent imperial units of measure shown, in parentheses, after metric units in any
schedule to this bylaw are for information purposes only and do not form part of this bylaw.
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Severance
3.5
If any section, subsection, sentence, clause or phrase of this bylaw is for any reason held to be
invalid by the decision of any court of competent jurisdiction, the invalid portion must be
severed and the decision that it is invalid does not affect the validity of the remainder of this
bylaw.
Master Municipal Construction Document (MMCD)
3.6
All Works and Services must be completed in accordance with the current Master Municipal
Construction Document (MMCD), Volume II, along with this bylaw.
Where there are conflicts between this bylaw and the MMCD, this bylaw takes precedence.
Approved Products
3.7
Materials used for Works and Services must be those listed in the City of Dawson Creek
Approved Products List, as amended from time to time, unless otherwise approved by the
Director of Development Services.
PART 4
INTERPRETATION
4.1
Definitions
All-Weather Vehicle Access has the meaning of a Temporary Road.
Approved Design means the detailed drawings and specifications for Works and Services prepared on
behalf of the Owner and accepted by the Director of Development Services.
Approving Officer means the person appointed by Council as such under the Land Title Act.
Asbuilt Security means an amount equal to fifteen percent (15%) of the total cost of the Works and
Services as originally estimated by the Professional Engineer, and as approved by the Director of
Development Services in the form of cash or an irrevocable and unconditional letter of credit in a form
acceptable to the Director of Development Services.
Certificate of Provisional Completion of All Works means a certificate issued by the Owner's
Professional Engineer stating that:
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a) Works and Services are ready to be used for their intended purpose;
b) The total cost of addressing incomplete, defective and deficient Works and Services, as
estimated by the Professional Engineer and verified by the City, is not more than 2% of the total
cost of the Works and Services; and
c) Fire protection has been approved to the satisfaction of the Fire Chief.
A description of the Works and Services that remain to be completed must be included as part of this
certificate.
Certificate of Provisional Completion of Deep Utilities means a certificate issued by the Owner's
Professional Engineer stating that deep utility Works and Services including water, sanitary sewer, and
storm sewer mains, are ready to be used for their intended purpose.
City means the City of Dawson Creek.
Community Drainage System means a community drainage system operated by or on behalf of the City.
Community Sewer System means a community sanitary sewage collection system operated by or on
behalf of the City.
Community Water System means a community water supply system operated by or on behalf of the
City.
Council means the Municipal Council of the City.
Development means any construction to which the Building Regulation Bylaw applies.
Director of Development Services means the person appointed as such by Council, or successor in
function.
Excess or Extended Services has the same meaning as under the Local Government Act.
Professional Geotechnical Engineer means a person who is registered or duly licensed as a Professional
Engineer in British Columbia under the provisions of the Engineers and Geoscientists Act with expertise in
the field of geotechnical engineering.
Highway has the same meaning as under the Community Charter.
Owner has the same meaning under the Community Charter.
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Parcel has the same meaning as under the Community Charter.
Performance Security means an amount, as approved by the Director of Development Services, in the
form of cash or an irrevocable and unconditional letter of credit in a form acceptable to the Director of
Development Services, given to the City when the Owner would like to obtain Subdivision approval or a
building permit prior to the installation of on-site and off-site Works and Services.
Professional Engineer means a person who is registered or duly licensed as a Professional Engineer in British
Columbia under the provisions of the Engineers and Geoscientists Act.
Subdivision means and includes a Subdivision as defined in the Land Title Act and a Subdivision under the
Strata Property Act.
Sustainable Neighbourhood - Special Policy Area means the area as shown in Figure 1 of Schedule A -
Works and Services Requirements that is designated to be developed as a sustainable and environmentally-
friendly neighbourhood, as outlined in the City of Dawson Creek's Official Community Plan.
Temporary Road means a road as required in Schedule E - Roads with the exception of any permanent
surfacing such as asphalt.
Warranty Security means the security to be provided under Section 7.5.f, which shall be in the form of
cash or an irrevocable and unconditional letter of credit in a form acceptable to the Director of
Development Services.
Works and Services means Works and Services that may be required under this bylaw, including but are
not limited to: highways, curbs, gutters, sidewalks, boulevards, boulevard crossings, transit bays, street
lighting, underground wiring, overhead wiring, water distribution systems, fire hydrant systems, sewage
collection systems, sewage disposal systems, drainage collection systems, drainage disposal systems,
and natural gas, power, telephone, and cable services.
Works and Services Agreement means a written agreement between the City and the Owner for the
provision of Works and Services under this bylaw.
PART 5
CONNECTION TO COMMUNITY SYSTEMS
Community Water System
5.1
All water distribution systems and fire hydrant systems in those areas identified in Schedule A
must be connected, in accordance with the standards established under this bylaw, to the
Community Water System.
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5.2
Prior to connecting a water distribution systems to the Community Water System, existing water
sources providing water to Parcels to be serviced by the Community Water System must be
abandoned in such a way as to prevent cross-connection with the Community Water System, in
accordance with applicable City bylaws requirements.
Community Sewer System
5.3
All sanitary sewage collection systems and sewage disposal systems in those areas identified in
Schedule A must be connected, in accordance with the standards established under this bylaw,
to the Community Sewer System.
Community Drainage System
5.4
All drainage collection systems and drainage disposal systems in those areas identified in
Schedule A must be connected, in accordance with the standards established under this bylaw,
to the Community Drainage System.
PART 6
SERVICING REQUIREMENTS FOR SUBDIVISIONS AND DEVELOPMENTS
Works and Services within a Subdivision
6.1
The Owner of every Parcel being Subdivided must, as a condition of approval of the Subdivision
by the Approving Officer, provide Works and Services within the Subdivision in accordance with
the standards established in this bylaw.
6.2
The requirements under Section 6.1 do not apply in respect of a Subdivision under the Strata
Property Act.
Works and Services up to the Centre Line of Adjacent Highways
6.3
The Owner of every Parcel being Subdivided or developed must, as a condition of the approval
of a Subdivision by the Approving Officer or the issuance of a building permit by the City, provide
Works and Services, in accordance with the standards established in this bylaw, on that portion
of every Highway immediately adjacent to the Parcel being Subdivided or developed up to the
centre line of the Highway and Council hereby delegates to the Director of Development Services
the power to impose such requirements in respect of a Parcel being Subdivided or developed.
Works and Services on Site to be Developed
6.4
The Owner of every Parcel being developed must, as a condition of issuance of a building permit
by the City, provide Works and Services on the site being developed, in accordance with the
standards established under this bylaw and Council hereby delegates to the Director of
Development Services the power to impose such requirements in respect of a Parcel being
developed.
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Excess and Extended Services
6.5
Council hereby delegates to the Director of Development Services the power under the Local
Government Act to:
a)
require Excess or Extended Services in accordance with the Local Government Act.
b)
determine whether the cost to the City of an Excess or Extended Service is excessive such
that the Owner of the Parcel being Subdivided or developed must pay such costs;
c)
determine the proportion of the cost of providing the Works and Services that constitutes
an Excess or Extended Service;
d)
identify the Parcels that will be served by an Excess or Extended Service;
e)
determine which part of the Excess or Extended Service will benefit each of the Parcels that
will be served by an Excess or Extended Service; and
f)
enter into an agreement with the Owner of the Parcel being Subdivided or developed to
establish the period during which charges may be collected in accordance with the Local
Government Act.
6.6
Latecomer charges imposed by the City under the Local Government Act must include interest
calculated annually at a rate established by the City by bylaw.
Works and Services and Standards
6.7
All Works and Services to be provided under this bylaw must be provided in accordance with and
to the standards set out in the Schedules to this bylaw.
Timing of Completion of Works and Services
6.8
Every Owner of a Parcel being Subdivided or developed must, at the Owner's expense, complete
the construction and installation all Works and Services required to be provided by the Owner
under this bylaw or by the Director of Development Services before the Approving Officer
approves of the Subdivision or the City issues the building permit for the Development.
6.9
For the purposes of Section 6.8, the construction and installation of Works and Services are not
considered to be complete until and unless the Director of Development Services has issued a
Certification of Provisional Completion for all of the Works and Services required to be
constructed and installed with respect to the Subdivision or Development.
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6.10
Notwithstanding Section 6.9, a Subdivision approval may be given or the building permit may be
issued if the Owner of the Parcel being Subdivided or Developed:
a) deposits with the City security in an amount equal to 125% of the cost of the required Works
and Services, as estimated by a Professional Engineer and approved by the Director of
Development Services pursuant to Section 7.6, in the form of cash or an irrevocable and
unconditional letter of credit in a form acceptable to the Director of Development Services;
b) enters into an agreement with the City to construct and install the required Works and
Services by a specified date or forfeit to the District the security provided under paragraph (a)
of this section; and
c) detailed drawings and specifications for the required Works and Services have been prepared
in accordance with Section 6.12 and approved by the Director of Development Services in
accordance with that section and the Owner has satisfied the other requirements of that
section.
6.11
The Director of Development Services is hereby delegated the power to enter into agreements
on behalf of the City under Section 6.10.b on such terms and conditions as may be determined
by the Director of Development Services.
Design of Works and Services
6.12
Prior to commencing the construction and installation of any required Works or Services, the
Owner of a Parcel being Subdivided or Developed must cause a Professional Engineer and a
Professional Geotechnical Engineer to prepare, under seal, detailed drawings and specifications
for all Works and Services required under this bylaw or by the Director of Development Services
with respect to the Subdivision or Development and an estimate of the cost to construct and
install such Works and Services and the Owner must submit such drawings and specifications
and cost estimate to the Director of Development Services for approval and the Owner must
cause such drawings and specifications and cost estimate to be revised as may be necessary in
order to obtain the approval of the Director of Development Services. Without limiting the
foregoing, the Owner must cause such drawings and specification to be prepared in accordance
with the requirements of the Schedules to this bylaw and to be submitted to the Director of
Development Services accompanied by the following:
a)
a letter from the Owner confirming the relationship between the Owner and the
Professional Engineer;
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b)
a letter from the Professional Engineer confirming their engagement by the Owner and
that they will be providing professional services to the Owner to ensure that the Works
and Services are designed and constructed in accordance with this bylaw and the detailed
drawings and specification; and
c)
if the required Works and Services include a water supply system, a permission to
construct such system from the regional health authority.
Exemptions
6.13
The requirements under Section 6.1 do not apply if:
a) The Subdivision creates only natural areas;
b)
The Subdivision or Development creates a Parcel for the installation of utilities and related
structures and equipment; and
c)
A covenant restricting the use of the Parcel to one of those uses has been registered on title
under the Land Title Act in favour of the City.
PART 7
FEES AND SECURITY
Application Fees
7.1
An Owner applying for subdivision approval or a building permit must submit with the
application the fees set out in the City of Dawson Creek Fees and Charges Bylaw as amended or
replaced from time to time.
Inspection Fees
7.2
An Owner, prior to making application for final approval of a Subdivision or a building permit
must submit with the application the following fees:
a) Charges for inspection of Works and Services in the amount equal to one percent (1%) of the
Owner's Professional Engineer's cost estimate for constructing Works and Services required by
the new Subdivision or Development, or actual City cost, whichever is greater. The Goods and
Services Tax (GST) must be additional to the inspection charges. The Owner's Professional
Engineer's estimate must include the GST.
Performance Security Confirmation
7.3
The City may, at the Owner's expense, confirm the cost estimate of the Works and Services by
consulting with a Professional Engineer chosen by the City. The Director of Development Services
may choose which estimate to use.
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7.4
If the required Works and Services have not been completely installed in accordance with the
approved design drawings within the time specified in the Works and Services Agreement, the
City may draw on the Performance Security in order to complete the required Works and
Services. If the cost of installation exceeds the amount of the Performance Security, the balance
must be a debt due from the Owner to the City, recoverable in any court of competent
jurisdiction or by any other means available to the City.
Provisional Completion of All Works
7.5
Notwithstanding Section 6.9, a Subdivision approval may be given or the building permit may be
issued if the City has received the following from the Owner:
a)
A statutory declaration confirming that all Works and Services completed to date have
been paid for in full;
b)
A Certificate of Provisional Completion of All Works, issued by the Owner's Professional
Engineer, together with the supporting documentation upon which it is based, including
relevant:
Quality assurance test results signed and sealed by a Professional Geotechnical
Engineer; and
Inspection reports;
c)
Record drawings of all Works and Services, prepared by the Owner's Professional Engineer
or Asbuilt Security in lieu of record drawings;
d)
A list of defects and deficiencies in the work, as identified during an inspection of the
Works and Services with the City, together with a cost estimate sealed by the Owner's
Professional Engineer of the cost required to rectify these defects and deficiencies. If
record drawings are not provided at this point, they must be considered as a deficiency to
be rectified;
e)
Receipt of a schedule of quantities and prices of completed work to date, prepared by the
Owner's Professional Engineer; and
f)
Warranty Security, as set out in Section 7.6;
And the Director of Development Services confirms in writing that he or she has received the
items to be provided under this section and is satisfied with the validity of the Certificate of
Provisional Completion of All Works and with the list of defects and deficiencies.
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Warranty Security
7.6
Pursuant to Section 7.5.f the Owner must provide to the City Warranty Security in an amount
equal to ten percent (10%) of the cost estimate for the Works and Services accepted under
Section 6.12 plus two times the estimated value of defects and deficiencies remaining to be
rectified.
7.7
If the Owner fails to repair or replace any defect in the Works identified before or during the
three year period commencing on the date of Provisional Completion of All Warranty Period or
any failure of the Works to operate normally during that period, the City may repair or replace
any defective work and may deduct from the Warranty Security the City's costs of doing so and
the amount of any resulting damages suffered by the City as a result of such defect.
7.8
The Owner is responsible for the actual cost of repairing or replacing any defective Works and
Services and correcting any deficiencies in the Works and Services regardless of the adequacy of
the Warranty Security deposited with the City. If the cost of repairing or replacing any defective
Works and Services and correcting any deficiencies exceeds the amount of the Warranty
Security, the balance will be a debt due from the Owner to the City, recoverable in any court of
competent jurisdiction or by any other means available to the City.
7.9
Following completion of the three year period and the repair or replacement of all defects to
the satisfaction of the Director of Development Services, the City will return any unused portions
of the Warranty Security to the Owner.
PART 8
GENERAL PROVISIONS
Owner's Expense
8.1
An Owner who is subject to any of the requirements and regulations under this bylaw is
responsible for all costs of complying with such requirements and regulations, including all costs
of designing, constructing and install all Works and Services required to be provided by the
Owner under this bylaw and all the costs of retaining a Professional Engineer as and when
required under this bylaw.
Professional Engineer
8.2
Where the services of a Professional Engineer or Professional Geotechnical Engineer are
required in connection with any provision of this bylaw, the Owner of the Parcel being
subdivided or developed must, at its expense, engage the qualified Professional Engineer or
Professional Geotechnical Engineer for the required purposes.
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Cost of Services
8.3
All Works and Services required by this bylaw must be designed, reviewed, constructed and
inspected at the expense of the Owner.
Project Supervision and Certification
8.4
Within thirty (30) days of the Works and Services being operational, the Owner's Professional
Engineer must submit a report to the City in a format acceptable to the City and prior to the
commencement of the warranty period. The report must briefly describe the work and any material
changes during construction and certify that the Works and Services have been constructed in
compliance with this bylaw and the approved plans, drawings and supporting documents. The
report must contain copies of all inspection reports and test results upon which the certification is
based.
Statutory Rights-of-Way
8.5
All Works and Services required by this bylaw must be located in highways, unless the Director
of Development Services has approved the location of the Works and Services in an area that will
be within a statutory right-of-way in favour of the City under the Land Title Act. Where the
Director of Development Services permits the location of Works and Services within a statutory
right of way area, the Owner providing such Works and Services must, at its expense, cause a
statutory right of way in favour of the City together with a statutory right of way plan, to be
prepared in a form and on terms determined by the Director of Development Services, and must
cause the statutory right of way to be registered and the right of way plan deposited with the
Land Title Office, with priority over all financial liens, charges and encumbrances, including any
leases, rights of first refusal or options to purchase, prior to the commencement of the
construction and installation of such Works and Services.
Third Party Review
8.6
Where the review of any document, report or analysis related to servicing that the Owner has
submitted to the City is required, at the sole discretion of the Approving Officer, the City may
engage a third party Professional Engineer chosen by the City to review the document, report or
analysis. The Owner may be responsible for the full costs of any required third party review.
Subdivision approval may not be granted until these costs are paid by the Owner.
PART 9
ENFORCEMENT
9.1
Any person designated as a Bylaw Enforcement Officer pursuant to the City of Dawson Creek's
Bylaw Enforcement Notice Bylaw or Dawson Creek's Municipal Ticket Information Bylaw is hereby
authorized and empowered to enforce the provisions of this Bylaw by the Bylaw Notice
Enforcement Bylaw No. 4277, 2016 as amended from time to time, or by the Municipal Ticket
Information System Bylaw No. 4278, 2016 as amended from time to time.
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9.2
No person shall do any act or suffer or permit and act to be done in contravention of this bylaw.
9.3
No person shall obstruct or impede a Bylaw Enforcement Officer in lawful performance on any
property, at all reasonable times, in order to ascertain whether such regulations are being
observed.
9.4
Each day that an offence against this bylaw continues shall be deemed a separate and distinct
offence.
9.5
A person who contravenes any provision of this bylaw is liable to a fine of not more than
$10,000.00 and not less than $100.00 for each offence.
9.6
Any penalty imposed pursuant to this bylaw shall be in addition to, and not in substitute for, any
other penalty or remedy imposed pursuant to any other applicable statue, law, or legislation.
PART 10
EFFECTIVE DATE
10.1
This bylaw comes into full force and effect upon its adoption.
READ a first time this
26th
day of
June
, 2017.
READ a second time this
26th
day of
June
, 2017.
READ a third time this
26th
day of
June
, 2017.
ADOPTED this
17th
day of
July
, 2017.
CERTIFIED A TRUE AND CORRECT COPY of Bylaw No.
4353 cited as "SUBDIVISION AND SERVICING BYLAW
NO. 4353, 2017".
The Corporate Seal of THE CORPORATION OF THE CITY OF
DAWSON CREEK was affixed in the presence of:
ORIGINAL SIGNED BY
ORIGINAL SIGNED BY
Brenda Ginter
Director of Corporate Administration
Dale Bumstead - Mayor
ORIGINAL SIGNED BY
Brenda Ginter - Director of Corporate Administration
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULES
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE A
WORKS AND SERVICES REQUIREMENTS
Schedule A - Works and Services Requirements
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SCHEDULE A - WORKS AND SERVICES REQUIREMENTS
1.0
Works and Services Requirements ........................................................................................... 2
1.1
Establishment of Service Levels .............................................................................................. 2
1.2
Sustainable Neighbourhood ................................................................................................... 3
1.3
Accessibility ....................................................................................................................... 3
List of Tables
Table A1 - Level of Service
Schedule A - Works and Services Requirements
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1.0 WORKS AND SERVICES REQUIREMENTS
1.1
Establishment of Service Levels
The minimum level of Works and Services to be constructed by an Owner prior to approval of
Subdivision or Development is set out in Table A1 and Figure 1. While Table A1 sets out the
minimum level of Works and Services required, the Director of Development Services retains the
right to require a higher level of Works and Services or standard due to the conditions affecting a
specific Subdivision or Development.
Table A1 - Level of Service
Service
Level of Service
Urban Subdivision
Rural Subdivision
Sustainable Neighbourhood
For Parcels identified as
Urban in Figure 1
For Industrial Parcels
identified as Rural in Figure
1
Parcels within the area
identified in Figure 1
Roads
Urban Roads
Rural Roads
Alternate Urban Roads
Sewer
Community Sewer System
Community Sewer System
Community Sewer System
Water
Community Water System
Community Water System
Community Water System
Drainage
Community Drainage
System
Ditch
Alternate Community
Drainage System
Wiring
Underground
Overhead
Underground
Lighting
Thru Subdivision
Thru Subdivision
Thru Subdivision
Landscaping
Public
N/A
Public
For the purposes of Table A1:
Urban Subdivision means a Subdivision or Development where the Parcels have been
identified as Urban in Figure 1.
Rural Subdivision means an Industrial Subdivision or Development where the Parcels have
been identified as Rural in Figure 1.
Sustainable Neighbourhood means a Subdivision or Development where the Parcels are
part of the Special Policy Area as shown in Figure 1 and the City's Official Community Plan
Land Use Map.
Urban Roads means roads that meet the requirements for urban roads as set out in
Schedule A - Works and Services Requirements
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Subdivision and Development Servicing Bylaw
Schedule E - Roads.
Rural Roads means roads that meet the requirements for rural roads as set out in Schedule
E - Roads.
Alternate Urban Roads means roads that meet the requirements for Alternate Urban Roads
as set out in Schedule E - Roads.
Ditch means a drainage collection and disposal system of open ditches and culverts.
Alternate Community Drainage System means a community drainage system that meets
the requirements outlined in Schedule D - Stormwater.
Underground means a system of underground electrical and communications wiring.
Overhead means a system of overhead electrical and communications wiring.
Thru Subdivision means street lighting that is provided throughout the Subdivision (rather
than only at intersections).
Public means landscaping required on public lands as set out in Schedule G - Landscaping.
1.2
Sustainable Neighbourhood - Special Policy Area
Servicing requirements for any Subdivisions or Developments in this area must conform to Table
A1.
1.3
Accessibility
The Owner's Professional Engineer must consider the accessibility of people with disabilities
when designing all roads, sidewalks, pathways, curb let downs and driveway crossings.
CITY OF DAWSON CREEK
LEVEL OF SERVICE AREAS
1
FIGURE
°
1:40,000
Legend
Municipal Boundary
Level of Service
Rural
Urban
Sustainable Neighbourhood
- Special Policy Area
Parcels
Alaska Avenue
8th Street
Highway 2
Highway 97
Highway 97
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE B
WATER DISTRIBUTION
Schedule B - Water Distribution
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SCHEDULE B - WATER DISTRIBUTION
1.0
WATER DISTRIBUTION .......................................................................................................... 2
1.1
Water Distribution ............................................................................................................... 2
1.2
Per Capita Demand .............................................................................................................. 2
1.3
Non-Residential Demand ...................................................................................................... 2
1.4
Fire Flows .......................................................................................................................... 5
1.5
Design Flows ...................................................................................................................... 5
1.6
Water Pressure ................................................................................................................... 5
1.7
Hydraulic Design ................................................................................................................. 6
1.8
Minimum Pipe Diameter ....................................................................................................... 6
1.9
Dead Ends .......................................................................................................................... 6
1.10
Minimum Depth of Cover ...................................................................................................... 7
1.11
Grade ............................................................................................................................... 7
1.12
Corrosion Protection ............................................................................................................ 7
1.13
Valves ............................................................................................................................... 8
1.14
Hydrants ............................................................................................................................ 8
1.15
Air Valves ........................................................................................................................... 8
1.16
Thrust Restraint .................................................................................................................. 9
1.17
Chambers ........................................................................................................................ 10
1.18
Service Connections ........................................................................................................... 10
1.19
Utility Separation .............................................................................................................. 10
1.20
Alignment ........................................................................................................................ 11
1.21
Rights-Of-Way (R.O.W.) ...................................................................................................... 11
1.22
Connection to Existing Watermains ....................................................................................... 12
1.23
Testing and Disinfection ...................................................................................................... 12
List of Tables
Table B1: Population/Hectares per Land Use
Table B2: Average Annual Daily Water Demands
Table B3: Minimum Fire Flow Requirements
Table B4: Water Pressure
Table B5: Minimum Pipe Diameter
Table B6: Air Valve Sizing
Schedule B - Water Distribution
2 of 12
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
WATER DISTRIBUTION
1.1 Water Distribution
Water distribution systems must be designed in accordance with the requirements of this bylaw,
and must be constructed in accordance with the appropriate American Water Works Association
(AWWA) standards. Drawings completed by a Professional Engineer showing all works to be
constructed must be submitted to the Director of Development Services for approval prior to
construction. No construction will be allowed prior to obtaining approval from the Director of
Development Services.
The Owner must submit an approved Water Works Construction Permit from the Northern
Health Authority (Public Health Authority) to the Director of Development Services prior to
construction.
1.2 Per Capita Demand
To determine the required water demand for residential areas, use the following per capita
demands and population densities:
(ADD) Average Annual Daily Demand (A):
600 litres per capita per day (L/c/d)
(MDD) Maximum Day Demand (D):
1,200 litres per capita per day (L/c/d)
(PHD) Peak Hour Demand (H):
1,800 litres per capita per day (L/c/d)
Population densities:
Single Family = 3 persons/unit
Multi Family = 2 persons/unit
1.3 Non-Residential Demand
Commercial, industrial and institutional demands should be determined using specific data
related to the specific zoning designation of the property. In the absence of such data, use the
residential per capita demands as listed in Section 1.2 - Per Capita Demand and the equivalent
population values listed in Table B1 with the following factors:
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Average Daily Demand (A):
Values listed in Table B1
Max Daily Demand (D): D = 2.0 x A
Peak Hour Demand (H): H = 1.5 x D
Table B1: Population/Hectares per Land Use
Land Use
Equivalent Population/Hectare (gross)
Commercial:
90 people/ha
Institutional:
50 people/ha
Industrial:
90 people/ha
For identified commercial and institutional facilities, (A), the average annual daily water demands
must be as per Table B2.
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table B2: Average Annual Daily Water Demands
Facility
Unit
Typical Average Annual
Daily Water Demand
L/(person or unit)/d
Assembly hall
Seat
8
Automobile dealer/renter
Hectare
30,000
Automobile service station
Set of pumps
2,000
Car wash
Vehicle served
5,000
Bed and breakfast
Patron
150
Bowling alley
Lane
800
Camp: Children's, central toilet & bath
Person
180
Day, no meals
Person
50
Campground
Site
600
Curling club
Lane
8,500
Golf course
Hectare
1,500
Greenhouse
Hectare
27,000
Hospital
Bed
1,000
Hotel
Patron
300
Ice arena
Rink
85,000
Motel
Patron
500
Office
Employee
50
Picnic park, with flush toilets
Visitor
30
Restaurant:
Conventional
Seat
150
24 hour
Seat
200
Tavern
Seat
80
School:
Day, with cafeteria or
lunchroom
Student
60
Day, with cafeteria & showers
Student
70
Boarding
Student
400
Self-service laundry
Machine
2,000
Schedule B - Water Distribution
5 of 12
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.4 Fire Flows
Fire flows are determined in accordance with the requirements of the current edition of "Water
Supply for Public Fire Protection - A Guide to Recommended Practice", published by Fire
Underwriters Survey.
Fire flows are subject to minimum requirements as summarized in Table B3. Where it is not
feasible to achieve these fire flows, the Director of Development Services may accept lower
requirements.
Table B3: Minimum Fire Flow Requirements
Developments (without sprinklers)
Minimum Fire Flow
Single Family Residential
60 L/s
Apartments, Townhouses, Duplex, Mobile Home Park
90 L/s
Commercial
150 L/s
Institutional
150 L/s
Industrial
225 L/s
1.5 Design Flows
Total design flows (Qdesign) are to be the greater of the following:
Qdesign = D+F
Maximum Day Demand for the population or equivalent population
plus the Fire Flow, or
Qdesign = H
Peak Hour Demand for the population or equivalent population
1.6 Water Pressure
Table B4: Water Pressure
Maximum allowable pressure
850 kPa (123.3 psi)
Minimum pressure at Peak Hour Demand (H)
300 kPa (43.5 psi)
Minimum pressure in system during design
Maximum Day and Fire Flow Demand (D+F)
150 kPa (21.8 psi)
Determination of pressure limits should include consideration of property elevations relative to
street level.
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.7 Hydraulic Design
For hydraulic design, the following parameters are established:
Use a proven network analysis computer model based on the Hazen-Williams formula:
Q =
CD2.63S0.54
Where: Q = Rate of flow in L/s
278780
D = Internal pipe diameter in mm
S = Slope of hydraulic grade line in m/m
C = Roughness coefficient = 130 for all pipes
The maximum allowable design velocity under fire flow conditions should be 4.0 m/s. At
Peak Hour Demand the maximum flow velocity should be 2.0 m/s.
1.8 Minimum Pipe Diameter
Table B5: Minimum Pipe Diameter
Distribution mains:
Residential
Commercial, Industrial
150 mm
200 mm
Fire hydrant connections:
150 mm
Residential service connections:
19 mm
Duplex service before wye:
25 mm
Duplex service after wye:
19 mm
Commercial service connections:
50 mm
Industrial service connections:
50 mm
Service with fire sprinklers:
50 mm*
*May be reduced if Professional Engineer through modeling confirms acceptability of a smaller service.
1.9 Dead Ends
Watermains must be looped wherever possible. Where dead ends are unavoidable hydrants
may be used as blow-offs.
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.10
Minimum Depth of Cover
Depth of cover is be determined as the distance from finished ground surface to top of pipe.
Watermains and services must be of sufficient depth to:
Prevent freezing
Clear other underground utilities
Provide mechanical protection from external loads
Clear other underground utilities
The minimum depth of cover is 2.75 metres.
In cases where minimum depths cannot be attained, the Owner must provide special
consideration for frost and mechanical protection, which must be approved by the Director of
Development Services, for example at bridge crossings and in chambers.
The City may accept watermains with less than 2.75 meters cover providing that the Owner's
Professional Engineer has designed insulation adequate to prevent watermain freezing.
1.11
Grade
Grades must be straight lines between defined deflection points. Elevations must be recorded.
The minimum grade of watermains must be 0.1%, unless approved otherwise by the Director of
Development Services. Grading must be designed to minimize the number of high points.
When the slope equals or exceeds 10%, the Owner must provide anchorage, joint restraints,
trench dams and trench drainage. The Director of Development Services may require a
geotechnical engineering report where appropriate.
1.12
Corrosion Protection
Each metal fitting must be provided with corrosion protection as shown in the Supplementary
Detail Drawings. Metal fittings must be epoxy coated and attached with a 7.7 kg magnesium
anode. Anodes must be embedded into trench wall, at pipe depth, with a minimum of 50 mm of
native soil completely surrounding the anode. Anodes must be attached to fittings by fusing
methods.
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
If epoxy coating is chipped, use touch up epoxy paint to repair the damage. Denso tape must not
be used on bolts, fittings, or hydrant barrel unless gaps are smoothed out with mastic to prevent
any air or water from sitting in gaps. Hydrant barrel and boot to each have their own anode.
1.13
Valves
In general, valves should be located as follows:
In intersections either in a cluster at the pipe intersection or at projected property lines to
avoid conflicts with curbs and sidewalks:
3 valves at "X" intersection
2 valves at "T" intersection
Not more than 300 m apart
Not more than 1 hydrant isolated
Not more than 20 service connections isolated
Gate valves are required on all mains up to 300 mm diameter. Mechanically assisted groundhog
butterfly valves may be installed in mains 350 mm and larger. On mains 600 mm and larger,
valves may be one size smaller than the mains (with suitable reducers).
1.14
Hydrants
Fire hydrants must be located, in general, at street intersections and as follows:
Not more than 150 m apart in single family residential zones and not or more than 90 m
apart in higher density residential, industrial, commercial, and institutional zones
In accordance with "Water Supply for Public Fire Protection - A Guide to Recommended
Practice" published by Fire Underwriters Survey
1.0 m back from property line
Minimum 1.0 m clear of any other utility structure
At property lines in mid-block locations
1.15
Air Valves
Combination air valves must be installed at the summits of all mains 200 mm diameter and
larger, except as follows:
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Where the difference in elevation between the summit and valley is less than 600 mm
Where it can be shown that air pockets will be carried by typical flows
Where active service connections are suitably located to dissipate entrapped air
Typical air valve sizes, subject to design analysis, are summarized in Table B6.
Table B6: Air Valve Sizing
Watermain Size
Valve Size
200 mm to 300 mm
25 mm
350 mm to 600 mm
50 mm
Larger than 600 mm
Special design
Air valves must be vented to an appropriate above-grade location to eliminate any potential for
cross connection in a flooded or contaminated chamber.
1.16
Thrust Restraint
Concrete thrust blocking and/or adequate joint restraining devices must be provided at bends,
tees, wyes, reducers, plugs, caps, valves, hydrants and blow-offs.
The restraint system must take into account potential future excavations in the vicinity of the
watermain. Design calculations must be based on fitting type, water and test pressure and soil
conditions.
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.17
Chambers
Chambers or manholes containing valves, blow-offs, meters, or other appurtenances must allow
adequate room for maintenance, including headroom and side room. Access openings must be
suitable for removing valves and equipment. The chamber must be provided with a drain to
storm sewer or ditch, complete with backflow prevention, to prevent flooding of the chamber.
Rock pits may be considered, subject to suitable soil and groundwater conditions. A pumping
system may be required for drainage.
Adequate venting must be provided. Access and ventilation details must comply with WCB
requirements.
Insulation to prevent freezing must be provided where necessary.
1.18
Service Connections
Service connections size must be calculated on the basis of the designated land use including
sprinkler systems and/or on-site hydrants, where applicable. The minimum sizes are listed in
Table B5.
Each property must have an independent service located at the centre of each lot. Duplexes are
to be serviced using a wye connection as per the Supplementary Detail Drawings.
Each service must have a shut-off located within 300 mm of the property line within the City
right-of way.
1.19
Utility Separation
Requirements for separation of sanitary/storm sewers from water mains are as follows, unless
otherwise indicated by the local public health authority:
Horizontal Separation: At least 3 m horizontal separation must be maintained between a
water main and a sanitary/storm sewer.
In special circumstances, specifically in rock or where the soils are determined to be
impermeable, lesser separation than 3 m may be permitted provided that:
Approval has been granted by the Provincial Health Authority; or
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Any potential conflicts are constructed in accordance to Provincial/Local Health
Authority Guidelines.
Vertical Separation: Where a sanitary/storm sewer crosses a water main, the sewer must be
below the water main with a minimum clearance of 0.45 m. Where clearance is less than
0.45 m or the watermain crosses below the sanitary/storm sewer, protective measures
approved by the local public health authority must be applied.
Large diameter services must be separated 3 m horizontally from sewer services in separate
trenches. Small diameter services may be installed in a common trench.
1.20
Alignment
Except as noted in Section 1.21 - Right-Of-Way (R.O.W.), watermains must have straight
alignments with uniform offsets between intersections.
Mains must be located such that each property served has at least one side facing the
watermain.
Joint deflections and bending of mains are permitted within the manufacturer's specifications. If
this is not possible, any required vertical or horizontal alignment changes must be made using
appropriate bends or at fitting joints.
1.21
Rights-Of-Way (R.O.W.)
Right-of-way locations should be selected to avoid environmentally sensitive areas such as
watercourses, wetlands and wildlife migration corridors, and forested areas.
In all cases, the R.O.W. width must be sufficient to permit an open excavation with side slopes in
accordance with the WorkSafe BC regulations, without impacting on, or endangering, adjacent
structures. The minimum R.O.W. width is 6.0 m.
Where required, water feeder mains should have the R.O.W. wide enough for future twinning.
The width of the R.O.W. should be the required separation between pipe centerlines plus three
(3) times the depth to the crown of the deeper watermain.
Where a utility is located within a R.O.W., and valves, valve chambers, manholes, or other
appurtenances which require maintenance are located within the R.O.W., road access must be
provided from a public road. The maintenance access must be sufficiently wide and structurally
Schedule B - Water Distribution
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
adequate to support the maintenance vehicles for which the access is intended. Maximum
allowable grade of the maintenance access is 12%.
1.22
Connection to Existing Watermains
Connection to an existing watermain must be undertaken by the Owner at the Owner's expense
under the supervision of City staff. The Owner must provide no less than 72 hours notice to City
staff of the intent to connect to an existing watermain.
City staff must operate existing valves. Provide 24 hours notice to City staff if operation of valves
is required.
1.23
Testing and Disinfection
Testing and disinfection must be done as per MMCD requirements and in accordance with
applicable AWWA standards. Existing City hydrants must not be used for testing.
The Owner must provide no less than 48 hours notice to City staff of the intent to test a
watermain. Testing and disinfection must be completed under the supervision of City staff.
Any work requiring the supervision or assistance of City staff must be completed during regular
City business hours, Monday to Friday.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE C
SANITARY SEWER
Schedule C - Sanitary Sewer
1 of 10
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE C - SANITARY SEWER
1.0
Sanitary Sewer .................................................................................................................... 2
1.1
Sanitary Sewer .................................................................................................................... 2
1.2
Per Capita Flow ................................................................................................................... 2
1.3
Non-Residential Flows .......................................................................................................... 2
1.4
Peaking Factor .................................................................................................................... 4
1.5
Infiltration/Inflow ................................................................................................................ 4
1.6
Design Flow ........................................................................................................................ 4
1.7
Pipe Flow Formulas .............................................................................................................. 4
1.8
Flow Velocities .................................................................................................................... 5
1.9
Minimum Grades ................................................................................................................. 5
1.10
Minimum Pipe Diameter ....................................................................................................... 5
1.11
Alignment .......................................................................................................................... 5
1.12
Curved Sewers .................................................................................................................... 6
1.13
Manholes .......................................................................................................................... 6
1.14
Depth and Cover ................................................................................................................. 7
1.15
Right-Of-Way (R.O.W.) .......................................................................................................... 8
1.16
Utility Separation ................................................................................................................ 8
1.17
Service Connections ............................................................................................................. 9
1.18
Connection to Existing Sanitary Mains .................................................................................... 10
1.19
Corrosion and Odour Criteria ............................................................................................... 10
1.20
Testing ............................................................................................................................ 10
List of Tables:
Table C1: Land Use Densities per Population
Table C2: Commercial and Industrial ADWF
Table C3: Pump Control Panel
Schedule C - Sanitary Sewer
2 of 10
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
SANITARY SEWER
1.1
Sanitary Sewer
Sanitary sewer systems must be designed in accordance with the requirements of this bylaw.
1.2
Per Capita Flow
Sanitary sewer system design must be based on an average daily dry weather flow (ADWF) of 250
litres per day per capita (L/d/c). Population densities must be as follows:
Single Family = 3 persons/unit
Multi Family = 2 persons/unit
1.3
Non-Residential Flows
Average dry weather flows (ADWF) for non-residential areas must be based on specific data
related to the development or zoning. In the absence of such data, use the above residential per
capita flow and the equivalent population factors as summarized in Table C1.
Table C1: Land Use Densities per Population
Land Use
Equivalent Population/Hectare (gross)
Commercial
120 people/ha
Institutional
200 people/ha
Industrial
200 people/ha
Special consideration must be given to the design of the sanitary sewers for heavy users of water
or generators of sanitary sewage.
For identified commercial and institutional facilities, the ADWF must be as per Table C2.
Schedule C - Sanitary Sewer
3 of 10
City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table C2: Commercial and Industrial ADWF
FACILITY
UNIT
TYPICAL ADWF
L/(person or unit)/d
Assembly hall
Seat
8
Automobile dealer/renter
Hectare
30,000
Automobile service station
Set of pumps
2,000
Car wash
Vehicle served
5,000
Bed and breakfast
Patron
150
Bowling alley
Lane
800
Camp: Children's, central toilet and bath
Person
180
Day, no meals
Person
50
Campground
Site
600
Curling club
Lane
8,500
Hospital
Bed
1,000
Hotel
Patron
300
Motel
Patron
500
Office
Employee
50
Picnic park, with flush toilets
Visitor
30
Restaurant:
Conventional
Seat
150
24 hour
Seat
200
Tavern
Seat
80
School:
Day, with cafeteria or lunchroom
Student
60
Day, with cafeteria and showers
Student
70
Boarding
Student
400
Self-service laundry
Machine
2000
Shopping centre
m²
0.10
Swimming pool, with toilet and shower
Patron
50
Theatre
Seat
15
Schedule C - Sanitary Sewer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.4
Peaking Factor
The peaking factor is the ratio of Peak Dry Weather Flow (PDWF) to the Average Dry Weather
Flow (ADWF). The peaking factor must be calculated using the design residential population and
non-residential equivalent population with the following formula:
PF = __3.2___
Where:
PF = peaking factor
(P) 0.105
P = residential population plus non-residential
equivalent population in thousands
1.5
Infiltration/Inflow
Design flows must include an Infiltration and Inflow (I/I) allowance of 15,000 L/d/ha
1.6
Design Flow
Design flow, Q (= Peak Wet Weather Flow (PWWF)) = population and equivalent x per capita flow
x peaking factor + infiltration/inflow allowance.
Q = PWWF = (P) x (ADWF) x (PF) + I/I
1.7
Pipe Flow Formulas
Gravity Sewers
Use Manning's formula:
Q = AR0.667 S0.5
n
Where:
Q = Design flow in m³/s
A = Cross sectional area in m²
R = Hydraulic radius (area/wetted perimeter) in m
S = Slope of hydraulic grade line in m/m
n = Roughness coefficient
→ concrete = 0.013
→ PVC = 0.011
Sewage Force Mains
Use Hazen-Williams formula:
Q = CD2.63S0.54
Where:
Q = Rate of flow in L/s
278780
D = Internal pipe dia. in mm
S = Slope of hydraulic grade line in m/m
C = Friction coefficient
→ PVC or HDPE = 130
Schedule C - Sanitary Sewer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.8
Flow Velocities
Gravity Mains: The minimum full pipe velocity must be 0.6 m/s. There is no maximum velocity.
However, consideration must be given to scour problems and the dynamic loading on manholes
where flow exceeds 3.0 m/s. Anchoring must be incorporated where the grade(s) of the sewer
are 15% or greater.
Force Mains: At the lowest pump delivery rate anticipated to occur at least once per day, a
minimum cleansing velocity of 1.0 m/s must be maintained. Maximum velocity should not
exceed 3.5 m/s.
1.9
Minimum Grades
Gravity Mains: The grade of any sewer is governed by the minimum required full pipe velocity of
0.6 m/s.
Forcemains: Forcemains must be graded at a minimum of 0.5%. Grading must be designed to
minimize high points. Provide air release valves at high points
1.10
Minimum Pipe Diameter
Gravity Mains:
200 mm
Forcemains:
100 mm
Service Connections:
Single family residential - 100 mm
Duplex residential - One 100 mm service per side
Multi-family/commercial/institutional/industrial - 150 mm
1.11
Alignment
Except as noted in Schedule C Section 1.12 - Curved Sewers, horizontal and vertical alignments
must be straight lines between manholes.
Schedule C - Sanitary Sewer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.12
Curved Sewers
Horizontal curves may be formed using pipe joint deflections as follows:
Minimum radius = 60 m
Constant radius throughout curve
Minimum design velocity = 0.9 m/s
Curvature limited to half of maximum curvature specified by pipe manufacturer
Deflection to be at pipe joints only, no bending of the sewermain will be allowed
Radius and curvature not less than 60 m
Curve locations to be recorded at ¼ points and midpoint
Constant offset from property line or road centerline
1.13
Manholes
Manholes are required at:
Every change in grade
Every change in direction, except as permitted for curved sewers
Every change in pipe size
Downstream end of curved sewers
Every pipe intersection except for 100 mm and 150 mm service connections and junctions
with trunk sewers 900 mm and larger
120 m maximum spacing for all pipe sizes
Every future pipe intersection
Every terminal end (upstream end of every sewer main)
Temporary clean-outs may be provided at terminal section of a main provided that:
Future extension of the main is proposed or anticipated
The length of sewer to the downstream manhole does not exceed 45.0 m
The depth of the pipe does not exceed 2.4 m at the terminal point
Clean-outs are not to be considered a permanent structure
Sanitary manhole rim elevations outside of paved roadways must be designed to be:
Above the adjacent storm manhole rim elevation and
Schedule C - Sanitary Sewer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Above the surrounding ground so that infiltration from ponding will not occur
Hydraulic Details:
Crown elevations of inlet sewers must not be lower than the crown elevation of the outlet
sewer
Minimum slopes across manholes:
Straight run: 5 mm
Deflections up to 45°: 20 mm
Deflections 45° to 90°: 30 mm
The maximum deflection angle in a junction is 90°
Drop manhole and ramp structures must be avoided where possible by steepening inlet
sewers. Where necessary, provide ramp and drop structures as follows:
Invert Difference
Structure
Up to 0.25 m
Inside Ramp
0.25 m to 1.0 m
Inside Drop
Greater than 1.0 m
Outside Drop
Force main discharges must be directed into the receiving manhole outlet pipe. Manhole
benching must be extended a minimum 200 mm above the force main crown. If a manhole
drop cannot be avoided, an outside drop structure is required.
1.14
Depth and Cover
Depth is defined as the distance from the finished ground surface to the top of pipe. Sewers
must be of sufficient depth to:
Permit gravity sewer service to the basements of properties adjacent to the roadway or
sewer right-of-way
Prevent freezing
Meet the minimum depth requirements of 2.4 m
Clear other underground utilities
Prevent damage from surface loading
Schedule C - Sanitary Sewer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Allow for future extension of the sanitary sewer system to service upstream tributary lands
at ultimate development, as required by the Director of Development Services
Minimum cover on sewer connections at property lines must be 2.4 m. The City may accept
sewer mains and services with less than 2.4 m cover providing that the Owner's Professional
Engineer has designed insulation adequate to prevent sanitary freezing.
1.15
Right-Of-Way (R.O.W.)
Right-of-way locations must be selected to avoid environmentally sensitive areas such as
watercourses, wetlands and wildlife migration corridors and forested areas. Rear yard sewers are
discouraged and will only be allowed with appropriate easements, access and the permission of
the Director of Development Services.
Where location of a municipal utility in a statutory right-of-way is permitted by the Director of
Development Services, the minimum right-of-way width is 6.0 m.
In all cases, the width of rights-of-way must be sufficient to permit an open excavation with side
slopes in accordance with the WorkSafe BC regulations, without impacting on, or endangering,
adjacent structures.
Where a utility is located within a right-of-way, and valves, valve chambers, manholes, or other
appurtenances which require maintenance are located within the right-of-way, access from a
public road must be provided. The maintenance access must be sufficiently wide and structurally
adequate to support the maintenance vehicles for which the access is intended. Maximum
allowable grade of the maintenance access is 12%.
1.16
Utility Separation
Requirements for separation of sanitary sewers from water mains are as follows, unless
otherwise indicated by the local public health authority.
Horizontal Separation: At least 3 m horizontal separation must be maintained between a
water main and a sanitary sewer.
In special circumstances, specifically in rock or where the soils are determined to be
impermeable, lesser separation than 3 m may be permitted provided that:
Approval has been granted by the Provincial Health Authority, or
Any potential conflicts are constructed in accordance to Provincial/Local Health
Authority Guidelines.
Schedule C - Sanitary Sewer
9 of 10
City of Dawson Creek
Subdivision and Development Servicing Bylaw
Vertical Separation: Where a sanitary sewer crosses a water main, the sewer must be below
the water main with a minimum clearance of 0.45 m. Where clearance is less than 0.45 m or
the sewer main crosses above the water, protective measures approved by the local public
health authority must be applied.
Sewers in Common Trench:
Sanitary and storm sewers may be installed in a common trench, provided that the design
has taken into account:
Interference with service connections
Stability of the benched portion of the trench
Conflicts with manholes and appurtenances
The horizontal clearance between sewer pipes must be no less than 1.0 m and the horizontal
clearance between manholes must be no less than 0.3 m.
1.17
Service Connections
Connections are to serve all plumbing by gravity. Building elevations should be established
accordingly.
Service connections must be provided to each lot fronting the main. Service connections must
be installed perpendicular to the main, and in no case must a service connection be placed so
that it extends in front of any property other than the one being serviced.
Each property is permitted only one service connection. In special circumstances, where
servicing of all buildings on existing industrial or commercial properties is not feasible, two
services may be allowed if permitted by the Director of Development Services. Each unit of a
residential duplex must be provided with a separate service connection.
The minimum grade from the main to the property line must be 2.0% for 100 mm services and
1% for 150 mm services.
Service connections may be permitted into manholes provided that:
The connection is not in an adverse direction to the flow in the sewer main
The connection enters the manhole so the service crown is no lower than the sewer main
crown
Schedule C - Sanitary Sewer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Manholes are required on service connections larger than 150 mm diameter.
For residential developments, service connections must be located at the centre of each lot and
as noted on the Supplementary Detail Drawings.
The maximum length of any service connection is 30 m. Services exceeding 30 m in length will be
considered mains.
1.18
Connection to Existing Sanitary Mains
Connection to an existing sanitary main must be undertaken by the Owner at the Owner's
expense under the supervision of City staff. The Owner must provide no less than 72 hours notice
to City staff of the intent to connect to an existing watermain.
1.19
Corrosion and Odour Criteria
Dissolved sulphide maximum limit at any point in the system is to be 0.5 mg/l
Odour Criteria:
At 10 m from any gravity main, force main, manhole and lift station or other sewer
facility (summer conditions, winds between 2-10 km/h), 1.0 odour units
Where sewer facilities are close to houses, parks or walkways, 0.0 odour units
Analysis for odour and sulphides may be required
1.20
Testing
Testing of installed pipes depends on the height of existing ground water and must consist of low
pressure air testing and video inspection as outlined in the MMCD. The Owner must provide no
less than 48 hours notice to City staff of the intent to test a sanitary main. Testing must be
completed under the supervision of City staff. Any work requiring the supervision or assistance
of City staff must be completed during regular City business hours, Monday to Friday.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE D
STORMWATER
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE D - STORMWATER
1.0
Stormwater Management ..................................................................................................... 2
1.1
General ........................................................................................................................... 2
1.2
Stormwater Management ................................................................................................... 2
1.3
Integrated Stormwater Management Plan .............................................................................. 3
1.4
Minor and Major Systems .................................................................................................... 4
1.5
Runoff Analysis ................................................................................................................. 4
1.6
Design Frequencies ............................................................................................................ 4
1.7
Rational Method ............................................................................................................... 6
1.8
Computer Modelling Method ............................................................................................... 9
1.9
Minor System Design ........................................................................................................ 11
1.10
Major System Design ........................................................................................................ 17
1.11
Runoff Controls ............................................................................................................... 20
1.12
Environmental Protection .................................................................................................. 24
1.13
Testing .......................................................................................................................... 25
List of Tables:
Table D1: Drainage and Stormwater Return Frequencies
Table D2: Runoff Coefficients
Table D3: Inlet Times
Table D4: Common Impervious Fractions
Table D5: Critical Storm Events
Table D6: Permissible Depths for Submerged Objects
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
STORMWATER MANAGEMENT
1.1
General
These standards are not intended to be a substitute for sound engineering knowledge and
experience. Drainage designs must be prepared under the direction of a Professional Engineer
with the appropriate experience and knowledge.
These standards are intended to cover only minimum requirements. Drainage designs must
conform to all pertinent City bylaws, regulations, guidelines and policies as well as federal and
provincial statutes and guidelines.
1.2
Stormwater Management
Stormwater management involves the planning and design necessary to avoid and/or mitigate
the negative hydrological impacts of land development or land use changes on adjacent and
downstream lands and watercourses. Adverse hydrological impacts include such issues as
increased runoff (peak stormwater flows and volume), erosion, sedimentation, flooding,
property damage and injury or loss of life, reduced surface infiltration, reduced minimum
groundwater levels and stream flows, water quality deterioration and degradation of aquatic and
wildlife habitats. Mitigation measures include but are not limited to the following:
Appropriate sizing and routing of pipes and channels
Major flow path routing
Detention storage
Removal of sediment and other pollutants
Landscaping
Source control
Erosion protection
Groundwater infiltration
Subsurface disposal
Lot grading
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.3
Integrated Stormwater Management Plan
An Integrated Stormwater Management Plan (ISMP) is required for any Subdivision or
Development larger than 0.4 ha (1 acre) and must be submitted for the full extents of the
Subdivision or Development and not by phase. The ISMP must include the following:
Catchment plan for the subject site which includes all upstream lands that drain into or
through the site
Description of the existing and proposed land uses
Details indicating how the ISMP integrates with the City's drainage planning
Major contours at 1.0 m and minor contours at 0.2 m elevation intervals (existing and
proposed)
Alignment and limits of existing watercourses and wetlands located in existing and
proposed, or within 30 m of, the subject site, complete with environmental classifications
and/or fish presence information
Layout of existing and proposed drainage systems
Proposed point and method of stormwater discharge from the site (e.g., pipe connection to
the City's Community Drainage System, open discharge to ditch or natural watercourse)
Existing and proposed major surface flow paths
Proposed site grading plan in accordance with Schedule H - Site Grading
Proposed source quality treatment systems, where required
Locations and sizes of proposed conveyance and other management facilities for both minor
and major systems
Proposed building elevations and their relationship to the 1:100 year major flow path
hydraulic grade line
Temporary (construction) and permanent erosion and sediment control plan
Pre and post-development flows, with the impact mitigation measures
Downstream capacity for the system to which the subject site is proposed to discharge
Pre-development flows for all areas draining to or through the subject site
Subdivision or Developments less than 0.4 ha (1 acre) are required to submit a lot grading plan to
ensure proper routing of surface flow. Building locations and elevations must be checked relative
to major surface flow paths.
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.4
Minor and Major Systems
Each drainage system consists of the components that relate to either major or minor
stormwater systems.
The minor system comprises of the following:
Minor conveyance system comprising the gutters, inlets, storm sewers, driveway culverts,
low flow channels and watercourses
Storage Facilities
Water Quality Treatment Systems
The major system comprises of the following:
Surface flow paths, roadways, storage facility overflows, and watercourses
Culverts, bridges, and other crossing structures
1.5
Runoff Analysis
Storm drainage systems must be designed to accommodate the post-development flows using
the Rational Method or an approved hydrologic/hydraulic computer model. The final hydraulic
report must be signed and sealed by a Professional Engineer.
For Subdivision or Developments where the total tributary area is 25 hectares or less, the
Rational Method may be used to compute the peak runoffs. An approved hydrologic/hydraulic
computer model must be used for analyzing larger catchments and for the design of all storage
facilities.
Regardless of the analytical method being used, the tributary area used for the design of the
storm drainage system must be consistent with the actual contours of the land.
It is the Professional Engineer's responsibility to confirm the extent of the drainage area with the
Director of Development Services prior to final design.
1.6
Design Frequencies
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
In general, the design of stormwater management system components is required to
accommodate a number of variable stormwater runoff rates and volumes generated by storms
of certain recurrence intervals. Table D1 summarizes the return frequencies to be used for the
design of the drainage and stormwater management system components.
Table D1: Drainage and Stormwater Return Frequencies
Drainage System Component
Hydraulic Variables
Hydrologic Design Basis
Minor conveyance system
comprising the storm sewers,
driveway culverts, low flow
channels and watercourses.
Peak flow rate, flow depth,
duration of storm events and
base flow rates.
1:5 year design storm with winter condition
antecedent moisture condition.
Storage facility
Runoff volume, depth,
freeboard, peak inflow rate,
control discharge rate, time to
empty, base flow rates.
Storage capacity to reduce the post-
development flow rates to below their
respective pre-development levels of the
1:10 year event. This may be increased to
1:100 year if inadequate downstream major
flow paths exist.
Major system comprising the
surface flow paths, roadways,
storage facility overflows and
watercourses
Peak flow rate, flow depth,
duration, storage outflow and
overflow rates, runoff
volumes, and velocity.
1:100 year design storm with winter
condition antecedent moisture condition.
Sufficient freeboard above the maximum
hydraulic grade line must be provided to
protect buildings.
Culverts, bridges, and other
crossing structures
Peak flow rates, depth and
freeboard, backwater effect,
fish passage.
1:100 year design storm and/or with safe
overflow to protect City infrastructure and
private property. 1:200 year for natural
streams with catchments exceeding 10 sq.
km or for structures crossing arterial or
collector roads.
Water Quality Treatment
Systems
Peak flow, base flow
Oil and grit separators required for treatment
of flows up to the 5 year post- development
peak rate for parking lots and industrial
properties.
Schedule D - Stormwater
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City of Dawson Creek
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1.7
Rational Method
The Rational Method calculates the peak flow using the formula:
Q = RAIN
Where:
R = Runoff Coefficient
A = Drainage area in ha.
I = Rainfall intensity in mm/hr.
N = 0.00278
Q = Flow in m³/s
1.7.1
Runoff Coefficients
Zone designations selected for design purposes must be based on the highest and best use of the
properties in the design catchment area based on the most current version of the City's Zoning
Bylaw. Future land designations, as defined in the City's Official Community Plan (OCP), must be
used if such land use designations will result in a higher runoff coefficient.
Table D2: Runoff Coefficients
Type of Area
Coefficient
1:5 year
1:100 year
Woodlot
0.10
0.20
Agricultural (cultivated)
0.10
0.15
Rural Residential
0.35
0.40
Single Family Residential
0.50
0.55
Low Density Multi-Family Residential
0.60
0.65
Apartment
0.70
0.75
Commercial
0.80
0.85
Industrial
0.80
0.85
Institutional
0.75
0.80
Roofs or Pavement
0.95
1.00
Parks/Cemeteries
0.15
0.20
Natural Grass
0.10
0.15
Schedule D - Stormwater
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City of Dawson Creek
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1.7.2
Time of Concentration
The time of concentration is the time required for runoff 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 consists of the following formula:
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 or Overland Flow Time (Ti):
Inlet times for various land use conditions are given to ensure uniformity in runoff
computations
Table D3: Inlet Times
Lot Type
Inlet time (minutes)
5 year
100 year
Single Family
15
10
Multi Family
10
5
Commercial/Industrial/Institutional
10
5
The inlet time in rural areas must be calculated using the Airport Method:
Ti =
3.26(1.1 - C) L0.5
S0.33
Where:
Ti = inlet (minutes), minimum time = 15 minutes
C = runoff coefficient
L = travel distance (m), maximum length = 300 m
S = slope of travel path (%)
Travel Time (Tt)
The travel time in sewers, ditches, channels or watercourses must be estimated using
the following formula:
Tt =
Ct Ln
12 s 0.5
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Ct
=
Concentration coefficient depending on the type of flow
=
0.5 for natural watercourses or ditches
=
1.4 for overland flow
=
0.5 for storm sewer flow
L
=
Length of watercourse, conduit or overland flow in metres, along
the drainage path from the furthest point in the basin to the outlet.
n
=
Channel friction factor
=
0.050 for natural channels
=
0.030 for excavated ditches
=
0.016 for overland flow on smooth paving
=
0.400 for overland flow on natural areas
=
0.013 for concrete pipe
=
0.011 for PVC pipe
s
=
Basin slope in meter/meter
The above equation provides an approximate travel time which must be corrected with
the actual time of flow calculated from the hydraulic properties of the selected
pipe/channel. A composite value for Tt must be calculated in cases where the type of
flow along the longest path varies or the slope changes.
1.7.3
Rainfall Intensity
The Intensity-Duration-Frequency (IDF) curve established for Dawson Creek is based on rainfall
records collected from the weather station at the Dawson Creek Airport. See the Supplementary
Detail Drawing S17 for the IDF Curve.
Intensities corresponding to the 0.5, 1, 2, 6, 12, & 24 hour storms must be calculated to
determine the design peak flow rate.
1.7.4
Mean Annual Rainfall (MAR)
Statistically, the Mean Annual Rainfall (MAR) is defined to be the 24 hour rainfall volume with a
return period of 2.33 years. For practical purposes, the 2 year 24 hour rainfall volume is used as
the MAR and is calculated to be 36.3 mm.
1.7.5
Presentation of Rational Calculations
The Professional Engineer is required to tabulate the Rational Method calculations for submission
along with the appropriate plans and other relevant information.
Schedule D - Stormwater
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City of Dawson Creek
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1.8
Computer Modelling Method
1.8.1
Selection of Modelling Program
For basins larger than 25 hectares, hydrologic programs must be used for runoff analyses.
Hydrologic/hydraulic programs must also be used for the design of all stormwater detention
facilities. Software programs must be run with an EPA SWMM engine.
1.8.2
Catchment Data
Data preparation for planning areas or proposed Subdivisions or Developments must be based on
the best available information as per the City's Official Community Plan (OCP), Zoning Bylaw,
adjacent Subdivision or Development proposals and other pertinent land use information.
The Professional Engineer must determine both pre-development and post-development flows
with appropriate parameters chosen to be reflective of the type of soils, ground cover and typical
antecedent moisture condition (AMC) prevalent during the winter season.
Where information is not specifically available through applicable documents, future impervious
fractions for common land uses, as shown in Table D4 must be used for analysis. These are
intended as a guide only. In existing developed areas or where more detailed information is
available, the Professional Engineer must verify that the values shown are representative of the
true conditions.
Table D4: Common Impervious Fractions
Common Land Use
Total Impervious Fraction
Woodlot
0.05
Agricultural
0.10
Sub-Urban Residential
0.35
Single Family Residential
0.45
Low Density Multi-Family Residential
0.65
Apartment
0.75
Commercial
0.90
Industrial
0.90
Institutional
0.80
1.8.3
Storm Events
In order to determine the critical storm event for designing drainage works, analysis must be
conducted using design storms with the appropriate return period and the durations included in
Table D5. Developing design flows for both existing and proposed conditions are required.
Schedule D - Stormwater
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City of Dawson Creek
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Table D5: Critical Storm Events
Infrastructure
Component
Storm Return Period
Storm Durations to Model
Minor conveyance
system
1:5 year
0.5, 1, 2, 6, 12, & 24 hour storms to
determine design peak flow rate
Major conveyance
system
1:100 year
0.5, 1, 2, 6, 12, & 24 hour storms to
determine design peak flow rate
Detention Storage
Facilities
1:10 year
1:100 year
(if necessary)
0.5, 1, 2, 6, 12, & 24 hour storms to
determine maximum storage volume
and peak overflow rate.
The storm duration which generates the highest peak runoff rate is not necessarily the event
which results in the largest storage volume requirement for peak flow attenuation. The
Professional Engineer must review all design storm events and select the critical design values for
each component of the drainage system.
1.8.4
Presentation of Modeling Results
To document the design rationale used to develop the hydrologic model and to standardize the
presentation of model results, the design reports must include an appropriate section which
must indicate the following:
Type and version of computer model used
Summary of all parameters and specific simulation assumptions used
Design storms with clear documentation and plotted
A summary of peak flows for each system component
Inflow and outflow hydrographs for storage facilities
A plan showing sub-catchment areas, watershed boundary (including upstream catchments)
and the drainage system
A plan identifying the specific land uses modeled for each development condition analyzed
For detention ponds, stage-area and storage-discharge curves and the layout (including
sizing) of pond control devices
The functional layout and sizing of any flow control/diversion structure and the
tabular/graphical plots of inflow and outflow hydrographs
Schedule D - Stormwater
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City of Dawson Creek
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Tables summarizing the above described performance related parameters
1.9
Minor System Design
1.9.1
Level of Service
The minor drainage system consists of pipes and appurtenances sized to convey peak runoff by
gravity (non-surcharged) flow conditions for storms having the return period specified in
Schedule D - Table D1.
1.9.2
Pipe and Channel Capacity
Apply the Manning Formula under free flow (non-surcharged) condition. The Manning Formula
is:
Q =
A R 0.667 S 0.5
n
Where:
Q = flow capacity (m/s)
A = cross sectional area (m²)
R = hydraulic radius (m)
S = slope of hydraulic grade line (m/m)
n = roughness coefficient
Pipes must be designed to carry the required quantity when flowing ¾ full.
1.9.3
Flow Velocities
Minimum design velocity for pipes flowing full: 0.6 m/s.
Where steep grades result in pipe velocities exceeding 6 m/s, consider measures to prevent pipe
erosion and movement. Anchoring must be incorporated where the grade(s) of the sewer are
15% or greater.
Provide riprap bank protection and, if necessary, energy dissipation facilities in accordance to
Section 1.12.3 - Channel Erosion Protection.
Schedule D - Stormwater
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City of Dawson Creek
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1.9.4
Minimum Pipe Diameter
Storm Sewers
300 mm
Culverts:
Crossing Roads
600 mm
Crossing Driveways
400 mm
Catchbasin Leads
Storm Services
BC Hydro sump drain
200 mm for single catchbasin
250 mm for double catchbasin
300 mm
75 mm
Downstream pipe sizes are not to be reduced unless the proposed downstream pipe is 600 mm
diameter or larger and increased grade provides adequate capacity. Detailed hydraulic analysis is
required. The maximum reduction is two pipe sizes.
1.9.5
Alignment
Horizontal and vertical alignments as straight lines between manholes are preferred.
Horizontal and vertical curves may be formed using pipe joint deflections as follows:
Minimum radius = 60 m
Constant radius throughout curve
Minimum design velocity = 0.9 m/s
Curve locations to be recorded at ¼ points and midpoint
Radius and curvature not less than 60 m
Deflection to be at pipe joints only, no bending of the watermain will be allowed
Curvature limited to half of maximum curvature specified by pipe manufacturer
Constant offset from property line or road centerline
1.9.6
Manholes
Manholes are to have precast bases. Manholes are required at:
Every change in grade
Every change in direction, except as permitted for curved sewers
Every change in pipe size
Schedule D - Stormwater
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City of Dawson Creek
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Upstream and downstream end of curved sewers
Every pipe intersection
120 m maximum spacing for all main sizes
Every future pipe intersection
Upstream end of every sewer main
Hydraulic Details:
Crown elevations of inlet sewers must not be lower than crown elevation of outlet
sewer
Minimum slopes across manholes:
o
Straight run: 5 mm
o
Deflections up to 45 degrees: 20 mm
o
Deflections 45 to 90 degrees: 30 mm
Drop manhole and ramp structures must generally be avoided by steepening inlet
sewers. Where necessary, provide drop structures as follows:
Invert Difference
Structure
Up to 0.25 m
Inside Ramp
0.25 m to 1.0 m
Inside Drop
Greater than 1.0 m
Outside Drop
Hydraulic losses must be calculated for manholes with significant changes in alignment
(>45º). For high velocity flows (>3m/s) or large pipes (>600 mm Ø), detailed analysis is
required. For low velocities and smaller pipes, use the following formula:
HL = k
V2
Where:
HL = head loss (m)
2g
V = outlet flow velocity (m/s)
g = gravitational acceleration (9.81m/s2)
k = head loss coefficient (1.0 for channeled 90° bends
and tees, to 1.5 without channelized benching)
1.9.7
Depth and Cover
Depth must be defined as the distance from the finished ground surface to the top of the pipe.
Storm sewers must be of sufficient depth to:
Schedule D - Stormwater
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City of Dawson Creek
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Meet the minimum depth of cover requirements of 2.1 m
Clear other underground utilities
Prevent damage from surface loading
Allow for future extension of the minor system to service upstream tributary lands at
ultimate development
1.9.8
Right-of-Way (R.O.W.)
Right-of-way locations must be selected to avoid environmentally sensitive areas such as
watercourses, wetlands and wildlife migration corridors and forested areas. Rear yard sewers are
discouraged.
Where location of a municipal utility is in a statutory right-of-way the minimum right-of-way
width is 6.0 m. In all cases, the width of rights-of-way must be sufficient to permit an open
excavation with side slopes in accordance with the Worksafe BC regulations, without impacting
on or endangering adjacent structures. Where required, trunk and interceptor sewers should
have rights-of-way wide enough for future widening and/or twinning.
Where a utility is located within a right-of-way, and valves, valve chambers, manholes, or other
appurtenances which require maintenance are located within the right-of-way, provide road
access from a public road. The maintenance access must be sufficiently wide and structurally
adequate to support the maintenance vehicles for which the access is intended. Maximum
allowable grade of the maintenance access is 12%.
1.9.9
Utility Separation
Requirements for separation of storm sewers from water mains are as follows, unless otherwise
indicated by the local public health authority.
Horizontal Separation: At least 3 m horizontal separation must be maintained between a
water main and a storm sewer.
In special circumstances, specifically in rock or where the soils are determined to be
impermeable, lesser separation than 3 m may be permitted provided that:
Approval has been granted by the Provincial Health Authority, or
Any potential conflicts are constructed in accordance to Provincial/Local Health
Authority Guidelines.
Schedule D - Stormwater
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Vertical Separation: Where a storm sewer crosses a water main, the sewer must be below
the water main with a minimum clearance of 0.45 m. Where clearance is less than 0.45 m or
the sewer main crosses above the water, protective measures approved by the local public
health authority must be applied.
Sewers in Common Trench: Storm and sanitary sewers may be installed in a common trench,
provided that the design has taken into account:
Interference with service connections
Stability of the benched portion of the trench
Conflicts with manholes and appurtenances
The horizontal clearance between sewer pipes must be no less than 1.0 m and the horizontal
clearance between manholes must be no less than 0.3 m.
1.9.10 Service Connections, Roof Drainage and Building Perimeter Foundation Drainage
Direct storm connections from building roof drains or foundation drains are not permitted. Roof
drainage for all buildings must be discharged to the ground and dispersed via splash pads at the
downspouts, provided that the site is graded away from the building, or to an approved sub-
surface soak-away system. Building perimeter foundation drains must drain by gravity to the
surface if grades permit or into a sump pump that discharges water onto the surface.
Roof leaders and foundations drains must not discharge at the top of bank of a natural
watercourse or other open channel.
A roof leader or building perimeter foundation drain must not be connected to a sanitary sewer.
On site surface runoff collection systems, through the use of catchbasins or other inlet devices,
are permitted to connect to the storm system. For multifamily residential, commercial and
urban industrial lots, storm services must be installed to property line for connection of future
on-site surface runoff collection systems only.
1.9.11 Catchbasin Spacing
Catchbasins are required at regular intervals along roadways, at intersections and at low points.
Catchbasin spacing is to provide sufficient inlet capacity to collect the entire minor flow or major
flow, if required, into the pipe system.
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The capacity of a single catchbasin (in sump conditions) can be calculated using the orifice
formula:
gh
kCA
Q
2
Where:
Q = inlet capacity (m3/s)
k = clogging factor (0.6)
C = orifice coefficient
A = open area (m²)
g = gravitational acceleration (9.81m/s2)
h = depth of ponding (m)
Space catchbasins to drain maximum paved areas of:
500 m² on roads with grades up to 4%
400 m² on roads with grades greater than 4%
Other spacing requirements include:
Prevent overflows to driveways, boulevards, sidewalks and private property
Avoid interference with crosswalks
Catchbasin leads to discharge into manholes wherever possible
Maximum lead length: 30 m
Maximum spacing: 110 m
Minimum grade of catchbasin leads: 2.0%.
Lawn basins are required on boulevards and private properties where necessary to prevent
ponding or flooding of sidewalks, boulevards, driveways, buildings and yards. Double
catchbasins must be provided at all vertical points of intersections on road sag curves.
1.9.12 Pipe Joints
Use watertight joints except where storm sewers are part of a subsurface disposal system.
1.9.13 Tie In Procedures
Connection to the City's existing storm infrastructure must be undertaken by the Owner at the
Owner's expense.
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1.9.14 Culverts
Driveway culverts that form part of the minor system must have capacity for the runoff from the
1:5 year storm. The Professional Engineer must determine whether the culvert will operate
under the inlet or outlet control at design conditions.
The minimum depth of cover for a culvert must be 0.3 m, subject to the correct pipe loading
criteria.
1.9.15 BC Hydro Utility Drainage
Where BC Hydro requires drainage for their infrastructure, the drain pipe will be a minimum of
75 mm diameter PVC line.
BC Hydro Utility Drainage requirements:
Prevent overflows to driveways, boulevards, sidewalks and private property
Avoid interference with crosswalks
Drainage line to discharge into manholes wherever possible
Minimum grade of drainage line: 2.0%
1.10
Major System Design
1.10.1 Surface Flow Routing
All surface flows must have specially designed routes that are preserved and protected by
easements or right-of-ways and are accessible for maintenance. Design criteria include:
In accordance to Schedule D Section 1.6 - Design Frequencies
One lane, or a 3.5 m width at the crown of each arterial road, is to be free from flooding
Where a road is used as a major flow path, the road grades are to be designed to
accommodate and control the flow at intersections and driveways
Overflow routes are required at all sags and low points in roads and other surface flow
routes
Major flood routes are required at down-slope cul-de-sacs
Maximum flow depths on roadways are subject to the design velocities as per Table D6.
Schedule D - Stormwater
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Table D6: Permissible Depths for Submerged Objects
Water Velocity (m/s)
Permissible Depth (m)
0.5
0.80
1.0
0.32
2.0
0.21
3.0
0.09
1.10.2 Surface Flow Capacity
Flow capacity of road surfaces and swales must be calculated using the Manning formula, which
is presented in Schedule D Section 1.9.2 - Pipe and Channel Capacity. Typical values of the
Manning Roughness Coefficient "n" are:
0.018 for paved roadways
0.030 for grassed boulevards and swales
0.040 to 0.10 for irregular or treed channels
1.10.3 Site Grading
The establishment of a site grading plan is one of the principal means for establishing a critical
component of the major drainage system. A detailed site grading plan is required to be
developed in accordance with Schedule H - Site Grading. All lots are to be graded to include
provision of protection against surface flooding and property damage for the 1:100 year return
frequency design storm. Through control of surface elevations, designs should be such that
maximum flow or ponding surface elevations are 300 mm below the lowest anticipated finished
ground elevations at buildings.
1.10.4 Piped System
The minor drainage system may be enlarged or supplemented to accommodate major flows.
Design considerations include:
Provision of adequate inlets to accommodate major flows
The requirement for surface overflow routes at potential surface ponding locations
Design in accordance with minor drainage system guidelines
Adequate capacity of the existing downstream storm sewer
Culverts located in watercourses or culverts crossing roads must be designed for the 1:100
year event
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.10.5 Inlet and Outlet Structures
Pipes larger than 1,200 mm in diameter, and non-circular culverts require specially designed inlet
and outlet structures.
Outlets may require rip rap protection and/or energy dissipating structures for erosion control.
The Professional Engineer must apply Best Management Practices to reduce erosion at all
inlet/outlet structures.
Ditch inlets to storm sewers must include sedimentation basins, safety grillage and hinged trash
racks for all pipes that are 450 mm and larger.
1.10.6 Ditches
Ditches must only be provided if in accordance with the applicable road classification and design
standards.
Ditches adjacent to roads must conform to the following criteria:
Maximum depth
1.0 m
Minimum bottom width
0.5 m
Maximum side slope
2.0(H):1(V) Confirmed by Owner's
Professional Geotechnical Engineer
Minimum grade
0.5%
Maximum velocity (Unlined ditch)
Temporary
(construction)
and
Permanent Erosion and Sediment
Control
Determined such that ditch materials do not
become erodible
As designed by the Owner's Professional
Engineer
The minimum right-of-way width for a ditch through private property must be 5 m or the width
of the ditch plus 3 m, whichever is greater. The ditch must be offset in the right-of-way to permit
a 3 m wide access for maintenance vehicles. Additional right-of-way may be required to facilitate
ditch construction and access. The top of the ditch must be a minimum 0.5 m from any property
line.
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.11
Runoff Controls
1.11.1 Stormwater Storage Facilities
Stormwater dry detention must be provided in accordance with the criteria herein:
Capacity Requirements:
The storage capacity requirement must be determined by evaluating the performance under
a number of storm events as listed in Table D1. Sufficient live storage capacity must be sized
to such that post-development flows are equal to pre-development flows.
Storm events exceeding the 1:10 year level are generally considered an overflow condition
and part of the major system. The facility must be designed to permit the controlled
overflow release of flows up to the peak 1:100 year level to an approved major flow path. If
a sufficient major flow path does not exist, or if the proposed release rate will increase the
risk of downstream impacts to an unacceptable level, then storage may be required to
ensure that the post-development 1:100 year flows do not exceed the 1:100 year pre-
development levels or other erosion control measures may be required.
1:100 year flows and volumes are to be determined by the Professional Engineer as required
to suit downstream conditions
The performance of the storage facility must be evaluated under the selection of storm
events listed in Table D5. The facility must be sized and designed for the criteria which
results in the largest storage volume. Storage facilities must be designed and evaluated
using an approved modelling program as discussed in Schedule D Section 1.7 - Rational
Method. This criteria is applicable to all service areas 0.4 hectares or greater.
Geometrical Requirements:
To minimize short circuiting dry detention facilities must have a minimum length to width
ratio of 3:1.
For slope stability, ease of maintenance, and safety, maximum side slopes are 3:1.
A freeboard of 0.3 m is required for all detention facilities.
Small Lot Criteria:
For service areas smaller than 0.4 hectares, the requirement for a detailed analysis of the
storage facility is not required.
1:100 year flows and volumes are to be determined by the Professional Engineer as required
to suit downstream conditions.
Control Structures:
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
The release rate from detention facilities must be regulated using a control structure.
The outlet control for storage facilities must be designed using standard orifice or weir
equations.
Storage facility must include provisions for discharge rates greater than the design release
rate. Designs must also provide means for rapid drawdown, such as an emergency drain.
Design of inlet/outlet structures must consider flow energy dissipation and erosion control.
Safety railings are required over all inlet/outlet openings larger than 450 mm in diameter.
Locks for access hatches are required to prevent unauthorized entrance to the structure.
Emergency Overflow:
Whether the facility is sized to control the 1:100 year event or not, an emergency overflow
with the capacity for the peak 1:100 year flow rate must be provided for all storage facilities.
The overflow surface must be finished with erosion resistant material such as concrete,
asphalt, paving stone, or an approved equivalent. The design of the spillway and/or
overflow must consider the possibility of blockages in the outlet structure. The overflow
must provide safe discharge to an accepted major flow path. If the stormwater storage
facility is an underground storage facility, overflow piping must be installed and must have
the capacity to safely convey the 100 year event.
Operation and Maintenance Requirements:
A minimum 4 m wide All-Weather Vehicle Access must be constructed from a public road
right-of-way to the control structure and other works requiring maintenance. The maximum
grade on the access is to be 12%. A maintenance access of the same type must also be
provided to a sediment sump or forebay at the inlet end of an open pond.
For facilities servicing multiple lots, and where the City agrees to assume responsibility for
operation and maintenance of the facility, six copies of the operation and maintenance
manual must be provided when the facility is completed and prior to the City assuming
ownership. The manual must include:
Record drawings of the constructed facility
Brief description of the facility operation including design flows, design depths, and
schematic diagrams of the inlet and outlet structures, connections, controls, valves,
bypasses, overflows, etc
List of manufacturer's operation, service and repair instructions and parts lists (where
applicable)
Stage-storage-discharge relationship of all controls
General maintenance requirements and emergency procedures
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Public Safety and Signage:
All above ground storage facilities must be designed to maximize public safety. Interior side
slopes must be 4:1 within the limits of the live storage volume. Side slopes above the live
storage zone may be a maximum of 3:1. The design of storage facilities must include
adequate provisions for installation of standard signage to warn of anticipated water level
fluctuations, with demarcation of the expected maximum water levels for design conditions.
Performance Monitoring:
Prior to final approval of all stormwater facilities, the Owner must prepare and submit to the
City a written monitoring program to be conducted by the Owner for a period of 12 months
following construction. Monitoring results are to be submitted to the City on a monthly
basis for review. Adjustments to the control device must be required as necessary prior to
the expiry of the 1-year warranty period.
1.11.2 Erosion and Sediment Control for Construction
An erosion and sediment control plan must be provided by the Owner's Engineer prior to
construction. The purpose of this plan is to prevent the release of silt, raw concrete, concrete
leachate and other deleterious substances into any ditch, storm sewer, watercourse or ravine.
Construction materials, excavation wastes, overburden soils, or other deleterious substances
must be disposed of or placed in such a manner as to prevent their entry into any watercourse,
ravine, Community Drainage System, or restrictive covenant area.
All siltation control devices must be situated to allow for ready access for cleaning and
maintenance. Siltation control structures must be maintained throughout the course of
construction and to the end of the maintenance period (final acceptance). Changes in the design
of the structure are required if the proposed structure is found to perform inadequately.
At minimum, the control plan must provide the following:
Section I: Narrative:
Project description: A brief description of the nature and purpose of the land- disturbing
activity and the amount of grading involved
Existing site conditions: A description of the existing topography, vegetation, and
drainage
Adjacent areas: A description of neighbouring areas, such as streams, lakes, residential
areas, and roads that might be affected by the land disturbance
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Soils: A brief description of the soils on the site including erodibility and particle size
distribution (texture)
Critical areas: A description of areas within the developed site that have potential for
serious erosion or sediment problems
Erosion and sediment control measures: A description of the methods that will be used
to control erosion and sediment on the site including, temporary erosion control and
temporary sediment control measures
Permanent stabilization: A brief description of how the site will be stabilized after
construction is completed
Maintenance: A schedule of regular inspections and repairs of erosion and sediment
control structures, and the person responsible for maintenance
Section II: Details:
Detailed drawings: Enlarged dimensioned drawings of key facilities such as sediment
basin risers, energy dissipaters, waterway cross-sections, and sediment barriers
Seeding and mulching specifications: Seeding dates, seeding, fertilizing, and mulching
rates, and application procedures
Maintenance program: Inspection schedules, spare materials needed, stockpile
locations, and instructions for sediment removal and disposal and for repair of damaged
structures
Section III: Calculations:
Calculations and assumptions: Data for design storm used to size pipes and channels
and sediment basins and traps (e.g., 5-year, 6-hour storm = 75 mm; intensity peak = 60
mm/hr), design particle size for sediment trap efficiencies, basin discharge rates, size
and strength characteristics for filter fabric, wire mesh, fence posts, etc. and other
calculations necessary to support drainage, erosion, and sediment control systems
Attachments: The erosion control plan must be accompanied by a grading plan
1.11.3 Rain Gardens
All apartment developments in the Sustainable Neighbourhood - Special Policy Area must
provide a rain garden. Design of the rain garden is the responsibly of the Landscape Architect
hired by the Developer.
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.12
Environmental Protection
1.12.1 Water Quality Protection
Oil and grit separators must be installed for all storm connections from industrial parcels and in
all parking lots. The separators must be sized to treat peak runoff flows from a 5-year rain event.
1.12.2 Slope Stabilization
The implementation of stormwater management measures, combined with controls on land
development adjacent to watercourses, is intended to minimize the impact on the receiving
watercourses.
Setbacks:
Disturbance too close to a slope bank can destabilize the bank material and contribute to
bank failures. In addition to the environmental restrictions to working within the streamside
protection area of a natural watercourse, no disruption to the native ground is permitted
within a setback zone established by a 4:1 slope measured from the bottom of the slope.
Detailed site investigations by a qualified Professional Geotechnical Engineer are required
prior to the approval of any Subdivision or Development of disturbance within this setback
zone.
Retention of Bank Vegetation:
Existing vegetation along stream channel banks and within the established riparian setback
must be retained, and the disposal of debris within this setback is prohibited. The working
limits for the protection of the riparian setback must be clearly identified and flagged or
fenced for the duration of construction.
Storm Outfalls:
The number of storm outfalls into natural watercourses are to be minimized. All storm
drains from private properties must connect to a Community Drainage System. Individual
drains to natural watercourses are not permitted.
1.12.3 Channel Erosion Protection
Bank protection must be constructed along existing and new open watercourses to provide
adequate erosion protection in the form of bank armouring, soil stabilization, flow deflection and
other methods applicable for the specific site conditions
Schedule D - Stormwater
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
It is noted that any proposed works within the streamside protection area of an existing
watercourse falls under the jurisdiction of the Provincial or Federal governments, and as such, is
subject to their approval.
1.13
Testing
Testing of installed pipes must consist of video inspection as outlined in the MMCD.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE D
STORMWATER
SCHEDULE E
ROADS
Schedule E - Roads
1 of 16
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE E - ROADS
1.0
ROADS .............................................................................................................................. 2
1.1
General ................................................................................................................................ 2
1.2
Road Classification ................................................................................................................. 2
1.3
Road Cross-Section Details ....................................................................................................... 3
1.4
Road Design Criteria ............................................................................................................... 4
1.5
Vertical Alignment .................................................................................................................. 5
1.6
Horizontal Alignment .............................................................................................................. 6
1.7
Cul-de-Sacs ........................................................................................................................... 6
1.8
Intersections ......................................................................................................................... 6
1.9
Sidewalks, Walkways, Multi-Use Pathways, Bicycle Facilities and Wheelchair Ramps .......................... 7
1.10
Curb Returns ......................................................................................................................... 8
1.11
Curb and Gutter ..................................................................................................................... 8
1.12
Driveways/Crossovers ............................................................................................................. 9
1.13
Regulatory and Information Signs ............................................................................................ 10
1.14
Appurtenances .................................................................................................................... 10
1.15
Pavement Structure .............................................................................................................. 11
1.16
Onsite Traffic Loaded Areas .................................................................................................... 15
1.17
Testing ............................................................................................................................... 15
List of Tables
Table E1: Roadway Cross Section Details
Table E2: Road Design Criteria
Table E3: K Values
Table E4: Curb Returns
Table E5: Corner Clearance
Table E6: Driveway Widths
Table E7: Equivalent Single Axel Loads
Table E8: Minimum Pavement Structures
Table E9: 40mm Granular Subbase Gradation
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
ROADS
1.1
General
The Director of Development Services will consider the sufficiency and suitability of the proposed
road system, the arrangement, width, grade and location of all roads in relation to existing and
planned roads, to topographic features, to public convenience and safety, and to the proposed
uses of the land to be served by such roads.
The arrangement of roads in a Subdivision or Development must either:
provide for the continuation or appropriate projection of existing roads in surrounding areas;
or
where topographic or other conditions make continuation or projection of existing roads
impractical, provide an adequate and suitable roadway system having regard to the uses of
the land to be served.
The dimensions, locations and standard of all roads in a proposed Subdivision or Development
must conform substantially to the Official Community Plan.
The design parameters of all roads within the City must be in accordance with the Transportation
Association of Canada's (TAC) most current edition of "Geometric Guide for Canadian Roads."
Local residential roads must be aligned so that their use by through traffic will be discouraged.
1.2
Road Classification
The existing roadway classifications within the City are described as follows:
Arterial Roadway - An arterial road has the primary function of carrying through traffic from
one area to another with as little interference as possible from adjacent land uses. An
arterial road may provide direct access to properties as a secondary function when alternate
access is not available; however, this secondary function is discouraged
Collector Roadway - A collector road has the primary function of distributing traffic
between arterial, other collector and local roads within an area. A collector road may also
provide direct access to properties
Local Roadway - A local road has the primary function of providing direct access to
properties. Local roads normally connect to other local roads or to collector roads
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Alternate Urban Roadway - Alternate Urban Roadways are to be used in the Sustainable
Neighbourhood - Special Policy Area as shown in Figure 1 of Schedule A - Works and
Services Requirements.
Some roadway classifications have been further divided into urban and rural classifications
within this bylaw. Other road network components include:
Walkways and Pathways - Walkways and pathways are paths which follow routes
independent from motor vehicle roadways, sidewalks and bike lanes.
1.3
Road Cross-Section Details
The standard roadway cross-sections must be as shown in the Supplementary Detail Drawings
and detailed in Table E1.
The standard road cross-sections detailed in Table E1 and the Supplementary Detail Drawings
applies to all roadways within the City. Where ambient conditions, (standards in existing and
substantially "built-up" areas, steep topography, etc.) are not amenable to accommodate the
required roadway standards a variance to these standards may be considered by the Director of
Development Services.
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table E1: Roadway Cross-section Details
Facility
Classification
Detail
Drawing
#
Right-of-
Way
(metres)
Road
Width
(metres)
Lane
Width
(metres)
Parking
Shoulder
Curb
Type
Sidewalks
(metres)
Bicycle
Facilities
WALKWAYS AND PATHWAYS
Multi-Use Path
A15
N/A
3.0
N/A
N/A
N/A
N/A
N/A
N/A
LOCAL ROADWAYS
Urban
A1
20.0
10.0
2 - 5.0
Allowed
N/A
Rollover
1.5 one side
Shared
Asphalt
Cul-de-Sac
(Urban)
A2
20.0
10.0
2 - 5.0
Allowed
N/A
Rollover
1.5 one side
Shared
Asphalt
COLLECTOR ROADWAYS
Urban
A4
22.0
12.0
2 - 6.0
Allowed
N/A
Barrier
1.5 one side
Shared
Asphalt
Commercial Urban
A5
22.0
12.0
4 - 3.0
Allowed
N/A
Barrier
1.5 both sides
N/A
Industrial (Urban)
A6
20.0
12.0
2 - 6.0
Allowed
N/A
Barrier
1.5 one side
N/A
Industrial (Rural)
A7
25.0
8.5
2 - 4.25
N/A
1.5 Gravel
N/A
N/A
N/A
ARTERIAL ROADWAYS
Arterial
A3
27.0
14.0
2 - 7.0
N/A
N/A
Barrier
2.0 both sides
side
Shared
Asphalt
LANES
Lane
A13
6.0
6.0
N/A
N/A
N/A
N/A
N/A
N/A
ALTERNATE URBAN ROADWAYS (SUSTAINABLE NEIGHBOURHOOD)
Neighbourhood
Arterial
A8
20.0
11.0
2 - 5.5
Allowed
N/A
Barrier
2.5 one side
Shared
Sidewalk
Residential (Local)
A9
20.0
10.0
2 - 5
Allowed
N/A
Rollover
1.5 one side
Shared
Asphalt
Village Centre Road
(Collector)
A10
22.0
11.0
2 - 5.5
Allowed
N/A
Rollover
1.5 one side,
2.0 other side
N/A
Neighbourhood
Arterial Stormwater
A11
22.0
10.0
2 - 5.0
Allowed
N/A
Barrier &
Rollover
2.0 one side
2.4 one
side
Residential (Local)
Stormwater
A12
20.0
9.0
2 - 4.5
Allowed
N/A
Rollover
1.5
N/A
Where roadway cuts or fill sections extend beyond the right-of-way widths noted in Table E1, the
right-of way must be widened accordingly.
1.4
Road Design Criteria
All road classifications and designations for vertical and horizontal alignment elements must be
designed utilizing the designated design speeds contained in Table E2, and in compliance with
the most current edition of the Transportation Association of Canada - Geometric Design Guide
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
for Canadian Roads. Road design criteria to be referenced from this document include
superelevation, centreline radius, maximum grade, vertical curvature and sight distance.
Table E2: Road Design Criteria
Facility Classification
Design Speed (km/h)
Maximum Grade
Desirable (%)
Absolute (%)
Asphalt Walkway
N/A
10
15
Local Roadway
50
6
12
Collector Roadway
70
6
8
Arterial Roadway
70
5
8
1.5
Vertical Alignment
The following must be considered when establishing the vertical alignment of a roadway:
The vertical alignment of roads must be set so the grades of the driveway to adjacent
properties will conform to Section 1.12
The draining grade around the outside curb of a cul-de-sac must not be less than 0.5% and
not greater than 5.0%. Longitudinal gradients of cul-de-sac bulbs must not exceed 5.0%
When a cul-de-sac is at the bottom of a hill, the longitudinal gradient of the first 50 m of
roadway uphill from the cul-de-sac bulb must not exceed 5.0%. The maximum longitudinal
gradient for the rest of the hill must not exceed 8.0%
When a cul-de-sac is at the top of a hill, the longitudinal gradient for the roadway downhill
from the cul-de-sac must not exceed 12.0%
All changes in gradient over 1.0% on arterial and collector roads and over 2.0% on all other
road classifications must be connected by vertical curves
Standard cross slopes (normal crown) must be 2% for local roads; standard cross slopes must
be 3% for all other road classifications. Design road elevations must give due consideration
to flood proofing requirements of adjacent properties. Full road crossfall (reverse crown)
may be considered in special circumstances, as a means of more closely matching property
grade on either side of the roadway
The length of a transition from a normal cross-sectioned road to a section of road where
there is super-elevation or crossfall must, in no case, be less than 70 m for a 50 km/h
designed road. In selecting the length of the transition, care and consideration must be
given to draining all of the pavement. Typically, if no horizontal spiral curve is used, 60% of
the super-elevation is introduced prior to the beginning of the curve, and the balance is
developed in the curve
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Gutter elevations on curb returns and cul-de-sacs must be shown on the drawings at the
beginning, one-quarter points and end of curb returns and at 7.5 m intervals around cul-de-
sacs
1.6
Horizontal Alignment
The following must be considered when establishing the horizontal alignment of a roadway:
The horizontal centreline alignment of the road must be in accordance to the Supplementary
Detail Drawings.
Typical locations of works and utilities in roads are shown on the Supplementary Detail
Drawings.
Centreline chainage stations must be fully referenced and dimensioned from property lines.
Horizontal curves must be fully described showing internal angle, radius, tangent length and
arc.
If reversed curves are required in a roadway alignment they must be separated by means of
tangents of sufficient length
Where angular deflections occur in a roadway alignment, the angle must be replaced by a
curve of suitable radius
1.7
Cul-de-Sacs
Cul-de-sac bulbs must be used to terminate "no exit" roads. The following applies:
A maximum cul-de-sac length of 250 m is allowed, unless a secondary emergency vehicle
access is provided at least halfway to the end of the cul-de-sac, in which case the length
specification is not prescribed.
Cul-de-sac roads, designed to be permanent, must be provided at the closed end with an
area designed to permit safe and adequate space for the turning of motor vehicles. The end
treatment must be a cul-de-sac bulb.
1.8
Intersections
90º intersections are preferred by the City.
Intersections that cannot conform to a 90º angle may be designed and located within the range
of angles between 70º and 110º at the discretion of the Director of the Infrastructure.
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
The minimum spacing between intersections must be designed as per TAC standards.
Local Street Intersecting Arterials - Intersecting local streets must have a minimum width of 11 m
for a distance of 20 m from the end of the curb return of the major street. Thereafter the road
must taper at 30:1 to the design width of the local street.
In the design of all street intersections, including those with lanes and walkways, the Professional
Engineer must give consideration to providing adequate decision sight and stopping distances for
conflicting traffic streams involving pedestrians, bicycles and/or vehicles.
Line of sight at stop signs must consider all landscaping and utility installations.
Vertical Curvature at Intersections - Providing the minor intersecting street is subjected to a
"Stop" condition, the following K values, indicated in Table E3 may be used for the minor street.
Table E3: K Values
Classification
Crest
Sag
Minimum
Preferred
Minimum
Preferred
Collector
4
6
4
6
Local
2
4
2
4
1.9
Sidewalks, Walkways, Multi-Use Pathways, Bicycle Facilities and Wheelchair Ramps
Concrete sidewalks must be provided on roads in or adjacent to Subdivisions or Developments in
accordance with Table E1 and the Supplementary Detail Drawings.
The maximum grade for sidewalks must not exceed the maximum road grades.
Concrete sidewalks must be 150mm thick with 150mm of 19mm crushed granular base at vehicle
crossings and letdowns, and 100mm thick with 100mm of 19mm crushed granular base at all
other locations. All base material to be compacted to 98% Standard Proctor Maximum Dry
Density.
Asphalt walkways must be provided for access through Subdivisions or Developments to schools,
playgrounds, shopping centres, transit, and other community facilities. The dimensions, locations
and standard of all trails in a proposed Subdivision or Development must conform substantially to
the Official Community Plan.
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
The maximum grade for walkways must not exceed 15%. Where walkways would otherwise
exceed 15%, concrete stairs must be installed. Prior to the authorization of concrete stairs,
alternate walk routes must be submitted for City review and approval. Only where other
acceptable walk routes are not available will the installation of stairs be considered.
Walkways must be designed as per the Supplementary Detail Drawings and must contain the
following design parameters:
Minimum 300 mm depth of 19 mm crush gravel base compacted to 98% Standard
Proctor Dry Density;
Minimum 150 mm concrete thickness at driveway letdowns
Minimum 100 mm concrete thickness at all other locations.
Wheelchair ramps must be provided at all intersection curb returns as an integral part of the
sidewalk or to link walkways and crosswalks. Design at the midpoint of the curb return.
Bicycle facilities must be designed in accordance with the Transportation Association of Canada
Geometric Design Guide.
In the Sustainable Neighbourhood - Special Policy Area, a 3.0 m (minimum 1.5 m) wide
perimeter trail must be provided along the Northern and Eastern edges of the site. Native trees
and shrub species are required for the vegetated buffer. This trail must meet all Agriculture Land
Reserve vegetated buffer requirements and/or guidelines.
1.10
Curb Returns
The minimum radius of curb return at intersections must meet the requirements listed in Table
E4. Curb returns located on roads within industrial and commercial areas may require a larger
radius to facilitate truck and/or bus traffic.
Table E4: Curb Returns
Roadway Classification
Curb Return Radii
Arterial
11 m
Collector
11 m
Local
9 m
When a new road with curbs intersects an existing road without curbs, full curb returns must be
constructed.
1.11
Curb and Gutter
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Curb and gutters must be provided as specified in Table E1 and the Supplementary Detail
Drawings.
Minimum gutter grade must be 0.5% for all street classifications.
1.12
Driveways/Crossovers
Each single family residential property must only have one driveway access per road frontage.
Multi-family residential, commercial, and industrial properties must only have one driveway
access per road frontage, unless there is a demonstrated need and approval is obtained from the
Director of Development Services. Where a lot abuts a lane or road of different classification, the
driveway must be located to access the lane or road of the lower classification.
Driveway letdowns must be provided for each lot. At the discretion of the Director of
Development Services, access to large parking areas must be by curb returns rather than a
driveway letdown. The Director of Development Services may require deceleration and
acceleration lanes for access off major roads for safety reasons and to minimize disruption to
traffic flows.
Driveway access grades must be designed to permit the appropriate vehicular access for the
zone, without "bottoming-out" or "hanging-up". From edge of pavement to property line, the
driveway grade must match the boulevard slope to encourage drainage towards the road. For
the first 10 m on private property, the maximum allowable driveway grade is limited to 10%.
Driveways must be located a minimum of 1 m from hydrants, poles, street lights, street signs,
and property lines.
Residential driveway access onto an arterial road is not permitted unless alternate access is
impractical. Wherever physically possible, alternate local road access must be dedicated to
preclude residential driveways accessing directly onto major roads.
Driveway accesses serving corner lots must be in accordance to Table E5.
Table E5: Corner Clearance*
Schedule E - Roads
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Road Classification
Signalized Intersection (m)
Unsignalized Intersection
(m)
Arterial
70
35
Collector
55
25
Local
5
5
*Clearance is measured from the intersection of the property lines at the corner.
All driveway accesses must be in accordance to Table E6 and the Supplementary Detail Drawings.
Table E6: Driveway Widths
Zone
Driveway widths
Single family residential
Minimum - 4.5m
Maximum - 45% of lot frontage to a maximum
of 9m
Multi-family residential
Minimum - 4.5m
Maximum - 9m
Commercial/Industrial Urban
As approved by Director of Development
Services
Industrial Rural
4m - 10m
(max culvert length - 12m)
or as approved by Director of Development
Services
* see stormwater schedule for minimum culvert sizing
1.13
Regulatory and Information Signs
Road name signs and traffic signs for new or improved roads must be provided and
installed by the Owner to match the City's standard signage and naming convention. Sign details
and locations are to be provided on the submitted drawings.
1.14
Appurtenances
All proposed traffic islands, retaining walls, guard-rails, and permanent barricades must be
designed in keeping with good engineering practices.
Traffic control devices must be designed and installed in accordance with applicable and current
City requirements.
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For all utility poles and anchors which require re-locating prior to road construction, the utility
must confirm the feasibility of their re-location prior to design completion.
All rock cuts, escarpments or retaining structures greater than 1 m high must be equipped with
protective railings or fencing.
1.15
Pavement Structure
1.15.1 General Requirements:
1.15.1.1 Hot-Mix Asphalt or Reclaimed Asphalt Pavement (RAP)
Pavement structures for Hot-Mix or Reclaimed Asphalt Pavement (RAP) must be designed by a
qualified Professional Engineer in accordance with a commonly accepted design method
(AASHTO, Asphalt Institute, etc.). The pavement must be designed to provide a 20-year design
life.
The parameters used for design must be based on site specific information which includes, but is
not limited to the following:
Existing pavement surface conditions
Subsoil conditions
Groundwater & drainage conditions
Climate
Traffic Volumes
Pavement structure designs must be submitted to the Director of Development Services for
approval.
1.15.1.2 Warm-Mix Asphalt (WMA)
Warm-Mix Asphalt (WMA) Pavement is a generic term used to describe the reduction of the
production, paving, and compaction temperatures achieved through the application of one of
several WMA technologies. WMA may be achieved by one or a combination of several
technologies involving HMA plant foaming and equipment, mineral additives, or chemicals that
allow the reduction of mix production temperatures to within 85°C to 130°C.
Pavement structures for WMA must be designed by a qualified Professional Engineer in
accordance with a commonly accepted design method (AASHTO, Asphalt Institute, etc.). The
pavement must be designed to provide a 20-year design life.
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The parameters used for design must be based on site specific information which includes, but is
not limited to the following:
Existing pavement surface conditions
Subsoil conditions
Groundwater & drainage conditions
Climate
Traffic Volumes
Pavement structure designs must be submitted to the Director of Development Services for
approval and must contain the following information:
WMA technology and/or WMA additives information
WMA technology manufacture's established recommendations for usage
WMA technology manufacturer's established target rate for water and additives, the
acceptable variation for production, and documentation showing the impact of excessive
production variation
Temperature range for mixing
Temperature range for compacting
Asphalt binder performance grade test data over the range of WMA additive percentages
proposed for use
During installation, the temperature of mix upon placement must not be less than the effective
spreading and compaction temperature of the warm mix asphalt mix.
1.15.2 Field and Laboratory Investigations:
A subsurface exploration program must be completed to a depth of at least 3.0 m below existing
and proposed finished roadway surface grades. At least one exploratory borehole and/or test pit
must be made at intervals of no more than 150 m along the proposed horizontal alignment.
Insitu testing must be completed, representative soil samples collected, and laboratory testing
carried out as necessary to determine the engineering properties and characteristics of the
subgrade materials. The minimum laboratory testing requirements include natural moisture
content determinations and grain-size analyses and/or Atterberg limit determinations as
appropriate to characterize the site subsoils for design purposes.
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Groundwater levels that may influence the roadway performance must be determined at the
time of the investigation and seasonal fluctuations should be estimated.
1.15.3 Design Parameters:
On the basis of the gathered information, a soaked California Bearing Ratio (CBR) value must be
determined or estimated for use in design of the pavement structure. A Resilient Modulus may
be approximated from the CBR value using the relationship:
MR (Mpa) = 10.3*CBR
The plasticity of the subgrade soils determined in the laboratory must be reported
(swelling/shrinking potential).
The frost susceptibility of the soils must be considered in the design.
1.15.4 Minimum Pavement Design:
In the absence of traffic volume data, the roads must be classified, as indicated in Table E7, with
the associated Equivalent Single Axle Loads (ESAL) for the purposes of pavement structure
design:
Table E7: Equivalent Single Axle Loads
Road Classification
Design Traffic (ESAL)
Arterial
1.0 x 106
Collector
2.8 x 105
Industrial
1.0 x 106
Local
2.0 x 105
In the event that the CBR value soaked CBR value is less than 3, the subgrade must be enhanced
to provide a CBR value of 3 to be used for the pavement structure design calculations.
Irrespective of calculated requirements, the Table E8 indicates the minimum values for pavement
structure component thicknesses for all roadways where:
the subgrade CBR value is greater than or equal to 6; and
Schedule E - Roads
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City of Dawson Creek
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the subgrade soils are not frost susceptible within 1500 mm of the finished paved surface or
groundwater is at least 1.5 m below the proposed subgrade surface.
Table E8: Minimum Pavement Structures
Road Classification
Subbase 1
40mm (minus)
(mm)
Base 2
19 mm
(minus)
(mm)
Hot and Warm Mix
Asphalt
Surface Course 3
(mm)
Arterial
500
75
100 (2 lifts)
Collector
450
75
75
Industrial
450
75
75
Local
350
75
75
Lanes
350
75
75
Asphalt Walkways
150
75
50
(1) 40mm Granular Subbase as per Table E9 gradation
(2) MMCD Granular Base
(3) MMCD Upper Course #1 for hot mix
Table E9: 40mm Granular Subbase Gradation
Sieve Designation
Percent Passing
37.5 mm
100
25 mm
70 - 94
19 mm
58 - 88
12.5 mm
44 - 77
9.5 mm
35 - 74
4.75 mm
25 - 62
1.18 mm
14 - 43
0.600 mm
8 - 34
0.300 mm
5 - 26
0.150 mm
2 - 18
0.075mm
2 - 10
Road subgrades must be compacted to 95% Standard Proctor Maximum Dry Density. For
sugbrade fills due to over-excavation compaction requirement must be 98% Standard Proctor
Maximum Dry Density. Subgrade fill lifts must be no larger than 150mm thickness unless
approved by a Professional Engineer. Non-woven geotextile and geogrid must be placed on the
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City of Dawson Creek
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prepared subgrade. Subgrade drainage must be provided using perforated drain piping wrapped
in a geotextile sock. The granular subbase must be placed and compacted to 98% Standard
Proctor Maximum Dry Density. The granular base must be placed and compacted to 100%
Standard Proctor Maximum Dry Density and must be placed in lifts no larger than 300mm
thickness or as approved by a Professional Engineer.
A Geotechnical Professional Engineer must be retained by the Owner to provide a geotechnical
design, provide geotechnical testing recommendations and approve all geotechnical testing
performed on the Works & Services.
Pavement structure designs must be submitted to the Director of Development Services for
approval.
Trenches and excavations made within existing roadways and under existing sidewalks and curb
and gutter must be backfilled to top of existing asphalt with a non-shrink fill, such as fillcrete. The
excavation is to be capped shortly thereafter with an asphalt patch of thickness conforming to
Table E8 of this section and the cap is to be made a smooth transition to the existing road surface
with no reduction in the quality of the ride of the road. The non-shrink fill must have a
compressive strength between 0.5MPa and 2MPa and must be allowed to cure for 24 hours prior
to allowing traffic loading. The excavation may be backfilled to top of existing asphalt less the
thickness of the asphalt patch if the excavation is to be capped with asphalt within 36 hours of
the non-shrink fill being installed or if approved by the Director of Development Services.
1.15.5 Construction Recommendations:
Recommendations related to roadway construction must be provided by the Owners Professional
Engineer. The recommendations should address:
Subgrade preparation and enhancement
Long-term drainage and erosion and sediment control
Road structure materials requirements
Construction methods and procedures
1.16
Onsite Traffic Loaded Areas
This Schedule applies to all onsite roads infrastructure including but not limited to parking areas,
sidewalks, walkways, driveways and permanent and temporary vehicle accesses.
1.17
Testing
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City of Dawson Creek
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Compaction testing must be completed by the Owner, at the Owner's cost, to ensure compliance
with this bylaw and MMCD specifications. Prior to paving or placement of concrete curb, gutter
and sidewalk, copies of test results must be provided to the City. In addition to compaction
testing, proof rolls of the prepared base and subbase must be completed as per MMCD
specifications, prior to paving or placement of concrete curb, gutter and sidewalk. Proof rolls
must be witnessed by City staff. The Owner must provide no less than 24 hours notice to City
staff of the intent to complete a proof roll. Any work requiring the supervision or assistance of
City staff must be completed during regular City business hours, Monday to Friday.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE F
STREET LIGHTING
Schedule F - Street Lighting
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE F - STREET LIGHTING
1.0
STREET LIGHTING ................................................................................................................. 2
1.1
General ............................................................................................................................. 2
1.2
Luminance Levels ................................................................................................................ 2
1.3
Light Pole Spacing ................................................................................................................ 2
1.4
Luminaires, Poles and Light Source .......................................................................................... 3
1.5
Lighting Calculations ............................................................................................................ 4
1.6
Traffic Signals ..................................................................................................................... 5
1.7
Conduit ............................................................................................................................. 5
1.8
Junction Boxes .................................................................................................................... 6
1.9
Conductors ........................................................................................................................ 6
1.10
Service Equipment ............................................................................................................... 7
1.11
Bases ................................................................................................................................ 7
List of Tables
Table F1: Streetlight Pole Locations
Table F2: Luminaire Lighting
Table F3: Total Light Loss Factor
Schedule F - Street Lighting
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
STREET LIGHTING
1.1
General
Design of street lighting systems must be prepared by a qualified Professional Engineer, fully
knowledgeable with the current Transportation Association of Canada (TAC) "Guide for the
Design of Roadway Lighting" and the MMCD Volume II.
Obtrusive light, light trespass, light pollution and environmental zones are key project design
issues that will be considered by the City. The Professional Engineer will utilize luminaires and
design techniques that will mitigate these issues. All light fixtures must have full cutoff optics.
1.2
Luminance Levels
Roadways will be illuminated to produce accurate and comfortable night time visibility and
safety. Pedestrian walkways and bikeways may require illumination if requested by the Director
of Development Services. The recommended minimum average maintained horizontal luminance
levels; uniformity ratios and veiling luminance ratios used by the City are listed in the current TAC
"Guide for the Design of Roadway Lighting". Illuminance method can be used for pedestrian
walkways and bikeways and where a specific circumstance warrants its use such as curved
roadways.
Prior to starting a project, the Professional Engineer will verify the road classification (i.e.; arterial,
collector, local etc) and the pedestrian activity classification with the Director of Development
Services. Definitions of these terms may be found in the current TAC "Guide for the Design of
Roadway Lighting".
The road classifications, luminance levels, ratios, road and pedestrian activity areas proposed will
be listed in a table format on the design drawings. The Professional Engineer will calculate all
luminance levels and ratios as noted under Section 1.5 - Lighting Calculations. For calculations
where the roadway surface is asphalt, R3, Road Surface Classification will be used.
1.3
Light Pole Spacing
Spacing and location of poles will be governed by road width, road configuration, intersecting
property lines, luminaire photometrics, mounting heights and recommended lumination levels.
Maintain clearances to overhead and underground utilities in accordance with MMCD
specifications and standards. The Canadian Electrical Code,
Work Safe BC and the BC Electrical Safety Act will also govern pole spacing and height.
Schedule F - Street Lighting
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City of Dawson Creek
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Poles will be generally arranged in a one sided, staggered or opposite spacing based on the road
classifications listed in Table F1 in this Section. In circumstances where overhead lines are in
conflict with street light poles, one sided spacing may be considered if the required illumination
levels and ratios can be achieved. Alternative pole spacing to those listed in Table F1 must be
acceptable to the Director of Development Services. Where possible, poles will be located close to
property lines and will avoid being placed in front of residential windows.
Where sidewalks are present, street light poles will be offset 0.3 m behind back of sidewalk.
Where sidewalks are not present, street light poles will be offset 0.5 m behind back of curb.
Alternative offsets require the acceptance of the Director of Development Services. On existing
roadways where the standard offsets cannot be maintained due to underground utility conflicts,
the Professional Engineer will make recommendations for alternate locations to the Director of
Development Services and obtain acceptance prior to proceeding.
Luminaires will be installed on all signal poles to maximize intersection illumination. The pole
spacing at intersections will therefore be governed by the signal pole locations. Additional street
light poles may be required to meet the required lighting levels.
Table F1: Streetlight Pole Locations
Road Type
Pole Location / Spacing
Arterial
Opposite or Staggered
Collector
Spaced on One Side of Road
Industrial Urban
Spaced on One Side of Road
Local
Spaced on One Side of Road
Walkways & Pathways
Entrance & Exit Points
1.4
Luminaires, Poles and Light Source
Luminaire type and pole type are as listed in Table F2. When expanding an existing street lighting
system, the wattage and mounting height should match those previously installed, if the road
classification and pedestrian conflict area are identical; unless otherwise accepted by the Director
of Development Services. New luminaires must have full cut-off optics.
Luminaire wattage, distribution type and voltage will be noted on the engineering drawings. The
preferred operating voltage for the street lighting system is 120/240V.
Schedule F - Street Lighting
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City of Dawson Creek
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Alternative voltages will require acceptance by the Director of Development Services.
Streetlighting poles in residential areas must be decorative type as noted on the City's Approved
Products List.
All luminaires will be flat glass, IESNA full cutoff type. Alternative cutoff classifications must be
acceptable to the Director of Development Services. The Professional Engineer will select the
most effective IESNA luminaire distribution type (i.e. Type 2, Type 3 etc.) to suit the roadway
geometrics. Cobra head luminaires will be used for all roadway lighting as noted on the City's
Approved Products List. Exact luminaire used in lighting calculations must be shown on design
drawings.
The light source for luminaires must be light-emitting diode (LED).
For development projects requiring pedestrian walkway/bikeway lighting, the cost for the supply
and installation of luminaires, mounting arms and lamps will be borne by the Owner. The
Professional Engineer will consult with the Director of Development Services for specific fixture
type, colour and model number information.
Table F2: Luminaire Lighting
Pole Height & Type
11.0 m Davit Pole
Cobra Head
Luminaire
9.0 m Davit Pole*
Cobra Head
Luminaire
9.0 m Decorative Pole
Cobra Head
Luminaire
6.0 m Decorative Pole
Cobra Head
Luminaire
Road
Classification
Arterial Roads
Arterial Roads
Collector Roads
Industrial Urban Roads
Local Roads
Walkways & Pathways
(*) Shorter 7.5m Davit Poles may be used to avoid conflicts with overhead lines if accepted by the Director of Development
Services.
For rural standard roads, coordinate with the local hydroelectric company to arrange for
streetlighting on utility poles.
1.5
Lighting Calculations
Lighting calculations will be carried out as follows:
Lighting calculations are based on the luminance methods described in the current TAC
"Guide for the Design of Roadway Lighting". Lighting calculations will be completed using
Schedule F - Street Lighting
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
suitable computer lighting design software designed to carry out the required calculations by
inputting the luminaire manufacturers IESNA formatted photometrics. The IESNA
photometric files for the City accepted luminaires are available in electronic format through
the specific luminaire manufacturer(s) web sites or local supplier.
Computer lighting calculations for walkways and bikeways (where required) will be
undertaken as described in the current TAC "Guide for the Design of Roadway Lighting".
Lighting calculations will be based on maintained levels using initial rated lamp lumens and
the total light loss factor (TLLF) of 0.72. Refer to Table F3 for the factors included in the TLLF.
The TLLF will be considered as the total maintenance factor.
The Director of Development Services may require a printed copy of the computer lighting
calculations from the Professional Engineer.
Table F3: Total Light Loss Factor
Lamp Lumen
Depreciation
(LLD) (1)
Lamp Dirt
Depreciation
(LDD)(1)
Lamp Component
Depreciation (LCD)(2)
Equipment
Factor (EF)(3)
Total Light
Loss Factor
(TLLF)(4)
0.82
0.94
0.98
0.95
0.72
Notes:
(1) Based on a 5 year maintenance schedule
(2) Degradation of the reflector and refractor
(3) Effect of ambient temperature on the lamp including the ballast and lamp factors
(4) TLLF = LLD x LLD x LCD x EF
1.6
Traffic Signals
Traffic signal designs are highly specialized and, if traffic signals are required for a Subdivision or
Development, will therefore be prepared by a Professional Engineer qualified in this area of
expertise. Traffic signals will be designed in general accordance with Sections 402.6 of the
Ministry of Transportation Electrical and Traffic Engineering Manual. Traffic signal designs will
also conform to the British Columbia Motor Vehicle Act and the Manual of Uniform Traffic
Control Devices for Canada. Traffic engineering and timing/coordination plans will be provided by
the Owner and prepared by a qualified traffic Consulting Engineer with PTOE certification.
1.7
Conduit
Conduit design for street lighting and traffic signals will conform to the following criteria:
Schedule F - Street Lighting
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City of Dawson Creek
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Conduits will generally be parallel or perpendicular to the roadway, and routed to run in a
direct line between adjacent poles or junction boxes. The exception would be where existing
or proposed trees conflict with the conduit run.
There will be a maximum four (4) 90° bends in a conduit run. Where this cannot be avoided
junction boxes will be used as noted under Section 1.8 - Junction Boxes.
Street lighting conduits will be minimum 30mm diameter rigid polyvinyl chloride (RPVC).
Signal conduits will be minimum 50mm RPVC and minimum 25mm RPVC for loop stub-outs.
Where conduits cross an existing road, they will be installed by a suitable trenchless
technology to avoid cutting pavement and interrupting traffic. Prior to specifying trenchless
technology, confirm that the site specific soil conditions are suitable. Open cutting of existing
roadways is only permitted at the discretion of the Director of Development Services.
1.8
Junction Boxes
The design of junction boxes for street lighting and traffic signals will conform to the following
criteria:
Large round plastic junction boxes (2 sections deep) with galvanized steel lids will generally
be used: where the maximum number of 90° bends in a conduit run is exceeded, where
branch conduit runs are required, in conduit runs over 100 metres in length, and at service
panels.
Concrete junction boxes with galvanized steel lids can be used for installations in sidewalks
or hard landscape areas.
Large concrete junction boxes with galvanized steel lids will be used for traffic signal
installations only in the quadrant where the traffic controller is to be installed.
1.9
Conductors
The design of conductors for street lighting and traffic signals will conform to the following
criteria:
For the purpose of standardization and to accommodate future expansion, street lighting
feeder conductors will be No. 6 RW90. The use of alternate conductor sizes will require the
acceptance of the Director of Development Services.
For traffic signal installations, multi-conductor cable will be used. The cable will run
continuously from the traffic controller to each pole with no splices.
All conductors must be stranded copper.
Schedule F - Street Lighting
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City of Dawson Creek
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1.10
Service Equipment
Street lighting and traffic signal service equipment will be designed with the following items
being taken into consideration:
The Professional Engineer will confirm service locations with the local hydroelectric utility
company.
Street lighting systems are controlled with a lighting contactor and photocell. The photocell
will be located on the luminaire nearest the service panel.
Service panels for street lighting systems will have a 40 Amp - 2 Pole breaker, contactor and
photocell bypass switch and will be mounted in a service base as shown on the MMCD
Standard Detail Drawings. Smaller size service panels must be accepted by the City and must
be detailed on the drawings in the form of a "Wiring Diagram" or "One Line" Diagram.
Where possible, traffic signal and street lighting systems will be fed from the same service
panel. The combination street lighting and traffic signal service panel will have a 100 Amp -2
Pole main breaker, sub-breakers, contactor and photocell by-pass switch. The service panel
will be mounted in a service base or on the side of a street light pole or post located near the
traffic controller. No other signal equipment will be mounted on the same pole as the
service panel. Refer to the MMCD Standard Detail Drawings.
All services will be 120/240V single phase, 3 wire. Alternative service voltage must be
accepted by the Director of Development Services.
1.11
Bases
The design of bases for street lighting and traffic signal pole installations will take the following
items into consideration:
When selecting pole base locations, search out proposed or existing utility locations and
identify sensitive tree root zones to avoid conflicts. The pole base will be positioned outside
the drip line of trees proposed for retention. The Professional Engineer will coordinate the
design with a Landscape Architect where applicable.
For traffic signal poles, the Professional Engineer will select a concrete base to suit the
required pole from those shown in the MMCD Standard Detail Drawings. Where a
customized base is required to accommodate unusual soils conditions, or to avoid
underground utilities and sensitive tree root zones, the customized base design will be
prepared by a qualified Professional Engineer. The design must also be acceptable to the
Director of Development Services.
Schedule F - Street Lighting
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City of Dawson Creek
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All pole height and type indicated in Table F2, as well as all other styles of lamp standards
will be installed on screw pile or concrete bases. The base design will be prepared by a
qualified Professional Engineer and must be acceptable to the Director of Development
Services.
Avoid running more than two conduits into a street light pole base. Where this situation
cannot be avoided, a junction box will be used.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE G
LANDSCAPING
Schedule G - Landscaping
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE G - LANDSCAPING
1.0
LANDSCAPING ..................................................................................................................... 2
1.1
Objectives .......................................................................................................................... 2
1.2
Related Standards ............................................................................................................... 2
1.3
Application of Standard ........................................................................................................ 2
1.4
Landscape Consultant ........................................................................................................... 2
1.5
Landscape Plan ................................................................................................................... 2
1.6
Landscape Requirements ...................................................................................................... 3
1.7
Retaining Walls ................................................................................................................... 4
1.8
Stormwater Management Facilities ......................................................................................... 4
1.9
Erosion Control ................................................................................................................... 5
List of Tables
Table G1: Sustainable Neighbourhood Tree Requirements
Table G2: Rates of Application of Hydraulic Mulch with Tackifier Additive
Table G3: Stormwater Management Requirements
Schedule G - Landscaping
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
LANDSCAPING
1.1
Objectives
These design standards are intended to enhance the safety, aesthetics and sustainability of
public lands and to ensure efficiency and effectiveness of maintenance and operations of these
lands.
1.2
Related Standards
This standard must be referenced to and integrated with, at minimum, the following:
BC Landscape Standard, Current Edition
National Guide to Sustainable Municipal Infrastructure (Canada)
Irrigation Association - Turf and Landscape Irrigation Best Management Practices
1.3
Application of Standard
These standards apply to the following areas:
Boulevards
Public walkways and access routes
Stormwater management facilities
Parks
1.4
Landscape Consultant
The Owner must retain a Landscape Consultant to be directly supervised by a Landscape
Architect or a Registered Irrigation Designer. All landscape drawings and specifications must be
sealed by a professional Landscape Architect.
1.5
Landscape Plan
The Landscape Designer must consider, at minimum, the following criteria:
The functional relationship of the landscape design to existing and proposed land uses,
utilities, flood patterns, drainage facilities, roads, driveways and pedestrian facilities
Schedule G - Landscaping
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City of Dawson Creek
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Accessibility as it relates to pedestrians, cyclists and people with limited physical or visual
abilities
Horticultural use of plant material, including plant suitability, survival rate, growth habit,
size, disease resistance and water demand
Appearance of the proposed plant material and site landscape, including appropriateness,
aesthetics, visual screening and sight lines
Protection of existing trees
Protection of the natural environment and restoration or enhancement of natural habitat
Site drainage, water levels, ponding and overland flow
Minimization of the opportunity for crime and undesirable behaviour
Weed control
Erosion control
Fire hazard reduction
The estimated costs and efficiency of maintenance practices that will be required for the
public land
Restoration of disturbed areas
1.6
Landscape Requirements
In boulevards within urban public road right of ways, the area from the back of curb or back of
sidewalk to the front property line must be graded as per the site grading plan. Minimum
landscaping by the Owner must consist of 100 mm of topsoil to property line. For rural road right
of ways, minimum landscaping by the Owner must consist of 100 mm of topsoil to property line
and seed.
Trees must be installed on private property as per the Supplementary Detail Drawings and meet
the list of approved species. The landscape plan must identify the proposed location for each
tree to avoid conflict with any utilities, appurtenances, or driveways.
Developments in the Sustainable Neighbourhood - Special Policy Area must provide trees as
detailed in Table G1. Approved species, planting sizes and best practices are outlined in
Supplementary Detail Drawing G10.
Table G1: Sustainable Neighbourhood Tree Requirements
Schedule G - Landscaping
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City of Dawson Creek
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Road Classification
Requirement
Neighbourhood Arterial
One Side
Residential (local) Roads
not within one block of the reserve site
At least one side
Residential (local) Roads
within one block of the reserve site
Both sides
Grass seed must be a mixture of 60% creeping red fescue, 20% perennial ryegrass and 20%
Kentucky bluegrass or approved equivalent. All seed to meet requirements of Canada Seed Act
for Canada No. 1 seed. Mechanical and hand application rates for this mixture are a minimum
240 kg/ha. Hydraulic mulch material to consist of approved grass seed, mulch and tackifier with
application rates as detailed in Table G2. Sod is an approved equivalent to mechanical or
hydraulic seeding.
Table G2: Rates of Application of Hydraulic Mulch with Tackifier Additive
Grass Seed
Mulch
Tackifier
55 kg/ha
2500 kg/ha
7 kg/ha
For public access routes, walkways and parks, minimum landscaping by the Owner must consist
of:
100 mm of topsoil and hydroseed
Perimeter fencing where required by the Director of Development Services
Lighting where required by the Director of Development Services
1.7
Retaining Walls
Retaining walls on all residential lots, except those required as a condition of subdivision
approval, must not exceed a height of 1.2 m measured from grade on the lower side,
and must be constructed so that any retaining walls are spaced to provide at least a 1.2
m horizontal separation between them and setback 1.2m from the parallel property line.
1.8
Stormwater Management Facilities
Landscape requirements for dry detention stormwater facilities must consist of the following:
The bottom of dry ponds and infiltration basins must be turf on 50 mm depth smooth
growing medium
Side slopes with a 4 (horizontal) to 1 (vertical) or shallower slope must have a turf surface on
50 mm minimum depth smooth growing medium. Side slopes steeper than 4 (horizontal) to
1 (vertical) slope must be naturalized with low maintenance riparian plantings in 100 mm
minimum depth growing medium.
Schedule G - Landscaping
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City of Dawson Creek
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Above the design high water level the ground surface must be turf on 50 mm depth smooth
growing medium, with a maximum slope of 4 (horizontal) to 1 (vertical), except as required
for vehicle access and pedestrian surfaces
Shrubs and trees must be selected, planted and maintained to provide screening, habitat,
shade and aesthetics as required
Residential land uses in the Sustainable Neighbourhood - Special Policy Area are subject to
the stormwater management design requirements as per Table G3.
Table G3: Stormwater Management Requirements
Designation
Required Stormwater Management
Country Residential
absorptive topsoil (457 mm)
Single Family Village Residential
absorptive topsoil (457 mm)
Multi Family Village Residential
absorptive topsoil (457 mm)
extra area allowed for rain gardens on lots that are
across the street and down slope from single family lots
absorptive topsoil (457 mm)
absorptive topsoil (457 mm)
Apartment Residential
absorptive topsoil (457 mm)
Site drains to rain garden
for 6 month storm (31 mm)
1.9
Erosion Control
Land proposed as public land where there is evidence of active or historic erosion that may have
maintenance or liability implications for the City will not be accepted by the City as public land.
The Owner is responsible for undertaking erosion control and restoration works on proposed
public land as necessary for the long-term prevention and control of erosion. The Owner must
develop an erosion and sediment control plan for construction in accordance to Schedule D -
Stormwater.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE G
LANDSCAPING
SCHEDULE H
SITE GRADING
Schedule H - Site Grading
1 of 6
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE H - SITE GRADING
1.0
SITE GRADING ..................................................................................................................... 2
1.1
General ............................................................................................................................. 2
1.2
Site Grading Plans ................................................................................................................ 2
1.3
Geotechnical Evaluation ........................................................................................................ 3
1.4
Design Criteria - Lot Grading .................................................................................................. 4
1.5
Design Criteria - Swales ........................................................................................................ 4
1.6
Siltation Abatement and Erosion Control .................................................................................. 5
1.7
Site Preparation .................................................................................................................. 6
1.8
Compaction ........................................................................................................................ 6
1.9
Detailed Site Surveys ............................................................................................................ 6
Schedule H - Site Grading
2 of 6
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
SITE GRADING
1.1
General
The Owner must execute site grading work in accordance with the regulations, standards and
specifications set out in this Schedule. Site grading must ensure proper drainage of individual
properties and establish an effective surface drainage system for the whole Subdivision or
Development area as part of the major drainage system. Supplemental to the requirements for
drainage systems outlined in Schedule D of this bylaw, the Owner must design site grading and
drainage works to:
Accommodate drainage from adjacent areas (including off-site areas) through the site
Accommodate drainage generated on-site
Avoid drainage from one lot to another
Mitigate groundwater problems
Mitigate soil erosion potential
Produce buildable lots that provide:
access from fronting roadways
drainage from each lot and into drainage infrastructure
structural competence of undisturbed and embanked soils to support building loads
1.2
Site Grading Plans
Prior to commencement of construction, site grading plans prepared by the Owner's Professional
Engineer must be submitted to the Director of Development Services for approval. These site grading
plans are to include the following information:
Clearing and grubbing boundaries
Fill and excavation areas (by shading) including structural fill areas and any required retaining
walls
Locations of required siltation abatement and control measures
Predevelopment topography - Showing existing contours within the Subdivision or Development
and extending into the adjacent lands, at a maximum 0.5 m interval as well as arrows showing
natural flow paths.
Schedule H - Site Grading
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Post development topography - Showing proposed contours within the Subdivision or
Development and extending into adjacent lands, at a maximum 0.5 m interval as well as arrows
showing natural flow paths
Representation of the major conveyance system - The nature and detail of the major
conveyance system is to be shown, including all major drainage flow directions, ponding areas
and the extent and maximum depth of ponding anticipated for a 1 in 100 year return frequency
rainfall event. The overall major drainage flow route is to be clearly defined and designated with
prominent arrows. Include the direction of surface flows on all surfaces and elevations of
overflow points from local depressions, details of channel cross sections etc.
Surface slopes of roadways and other surfaces with arrows indicating the direction of flow.
Proposed or existing elevations along the boundaries of the Subdivision or Development and
design elevations at all lot corners and changes of surface slope along property boundaries.
Lot drainage pattern - The direction of surface drainage for each lot is to be identified, to
indicate whether split drainage or through drainage is contemplated. Proposed surface drainage
for abutting future lands is to be shown to the extent that it will impact on the subject lands.
Lot grading details - Typical detail diagrams of the various types of lot grading arrangements,
which will normally conform to the figures provided in the Supplementary Detail Drawings G11
& G12, are to be used, identifying for each lot which typical detail applies.
Minimum finished ground elevations (adjacent to future building foundations) must be specified
for each lot.
Swale details including locations, easement requirements, slopes, cross sections and
construction details for the swales.
Easements and restrictive covenants - Requirements and locations for all easements and
restrictive covenants related to drainage provisions and development restrictions associated
with the drainage of the property.
1.3
Geotechnical Evaluation
The Owner must engage the services of a qualified Professional Geotechnical Engineer to investigate
surface soil and sub-surface conditions with respect to site grading within the proposed subdivisions.
The Professional Geotechnical Engineer must prepare a report outlining his findings and must
provide clear, definitive recommendations on the geometry and placement of fill sections,
compaction requirements for structural and non-structural fills, cut and fill slope geometry handling
of topsoil and any other geotechnical issues affecting site grading construction within the proposed
subdivision or development. A copy of the geotechnical evaluation must be submitted to the
Director of Development Services at the time the engineering drawings are submitted for approval.
Schedule H - Site Grading
4 of 6
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.4
Design Criteria - Lot Grading
Refer to Supplementary Detail Drawings G11, G12 and G13 for typical lot grading details. Wherever
possible, lots must be graded from rear to front, towards roadways. Split drainage or front to rear
drainage will be permitted only where site topography prohibits drainage to roadways. In this
situation, portions of lots may be graded to a drainage swale that is then graded to convey drainage
to a public right of way. See Section 1.5 for detailed swale design criteria.
Property line elevations must be established such that lots have maximum overall slopes of 15% and
minimum overall slopes of 2%.
Areas around buildings (or proposed building sites) must be graded away from the (proposed)
foundations to prevent flooding. Finished building elevations must be established such that the
ground will slope away from the building at a minimum of 10% for a distance of 2.0 m (or to the
property line), on all sides, with the slope directing drainage away from the building. The lot grading
must then provide for minimum slopes in the order of 1.5% to 2.0% from all points within the
property to the property boundaries, from which the drainage may escape.
Finished ground elevations adjacent to (proposed) foundations must be located a minimum of 300
mm above the maximum flow or ponding surface elevations for the 1:100 year major storm event.
The Owner must ensure that builders are informed of any potential problems or restrictions
respecting building design and lot grading. The site grading plan and covenants will be used as the
principle means by which this information is communicated.
1.5
Design Criteria - Swales
A swale is a shallow sloped linear depression for conveyance of surface runoff. Drainage swales
must be located in an easement and protected by registration of a covenant on the lot title.
For grassed swales serving lots on one side only:
Location: Rear of upstream lot in a 3.0 m easement
Cross Section: V-shape, 150 mm minimum depth and 4H:1V maximum side slope
Longitudinal slope: 1.5% minimum
For grassed swales serving lots on both sides:
Location: Common rear property line as centre of a 6.0 m easement.
Schedule H - Site Grading
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Cross-section: Trapezoidal with 1.0 m bottom, 150 mm minimum depth and 4H:1V maximum
slope.
Longitudinal slope: 1.5% minimum
Concrete swales or alternate configurations may be considered where minimum slope
requirements for grassed swales cannot be achieved or when swales are located within existing
developments or at locations where infill development is proposed.
Additional swale design criteria include:
Swales must have capacity to contain the 1:100 year storm major flow within the easement
Where swales intersect walkways, provide a catchbasin upstream of walkways to intercept the
1:5 year storm flow.
The number of lots draining to swale is dependent on the swale capacities and the catchbasin's
1:5 year storm flow inlet capacity.
Avoid bends greater that 45 degrees in swale alignments where possible.
Swales that convey flows from more than two lots must not be routed along the side yard of a
single family or duplex residential lot.
Future swale extensions must be identified and evaluated to ensure that anticipated constraints
and capacities are addressed.
Calculations for the swale's minor and major flow capacities must be submitted with the
Professional Engineer's drawings.
1.6
Siltation Abatement and Erosion Control
Siltation abatement and erosion control works must be designed and implemented during
construction in accordance with the requirements specified in Schedule D - Stormwater.
Schedule H - Site Grading
6 of 6
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.7
Site Preparation
All areas of the site where excavations or embankments are to be constructed must be cleared of
trees, structures and debris; grubbed; and stripped of organic topsoil.
1.8
Compaction
Unless specified otherwise by the Professional Geotechnical Engineer all non structural
embankments must be compacted to a minimum 95% Standard Proctor maximum dry density.
Compaction requirements for structural embankments are to be specified by the Owner's
Professional Geotechnical Engineer.
1.9
Detailed Site Surveys
Detailed site surveys are required throughout the site and of relevant areas beyond the site to
ensure grading meets requirements. The Owner must rough grade all lots to within 150 mm of the
proposed grading plan elevations along the perimeter of lots and construct all swales to within 150
mm of the proposed grade. Final lot grading and landscaping will be enforced through the building
permit process.
An as-built plan showing lot and swale elevations surveyed after rough grading must be submitted as
a prerequisite to the issuance of the Certificate of Provisional Completion of All Works.
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE I
QUALITY CONTROL
Schedule I - Quality Control
1 of 5
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE I - QUALITY CONTROL
1.0
QUALITY CONTROL AND ASSURANCE ....................................................................................... 2
1.1
Engineering Requirements .................................................................................................... 2
1.2
Construction Requirements ................................................................................................... 3
1.3
Quality Control and Assurance Plans ........................................................................................ 3
Schedule I - Quality Control
2 of 5
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
QUALITY CONTROL AND ASSURANCE
This Schedule sets out the City's minimum standards for quality in design, quality in construction and
quality in record-keeping for the Works and Services to be designed and constructed in accordance with
this bylaw.
1.1
Engineering Requirements
The Owner must demonstrate to the satisfaction of the Director of Development Services that the
Owner has retained or will retain the services of a Professional Engineer to undertake the design,
inspection, testing and record-keeping for the Works and Services.
The Owner must complete and provide the Director of Development Services with the following
information in an Owner/Professional Engineering confirmation letter to demonstrate that the
Professional Engineer is qualified to undertake the Works and Services and more particularly, has
successfully undertaken projects similar in scope, nature and value to the Works and Services:
The name and address of the Professional Engineer and a summary of the projects that the
Professional Engineer has undertaken that are similar in scope, nature and value to the
Works and Services.
The names of the individuals assigned to various aspects of the project by the Professional
Engineer together with a summary of the projects that the individual Professional Engineers
have undertaken that are similar in scope, nature and value to the Works and Services.
The names and the curriculum vitae for the person(s) that the Professional Engineer
proposes/has retained to undertake the inspections and testing on its behalf during the
construction of the Works and Services together with a summary of the projects that the
person(s) has completed that are similar in scope, nature and value to the Works and
Services.
The names and addresses of all sub-consultants that the Professional Engineer has/proposes
to retain and a summary of the projects that the sub-consultants have completed that are
similar in scope, nature and value to the Works and Services.
The Owner must ensure the Professional Engineer designs all Works and Services in
accordance with this bylaw.
The Owner must also confirm that the Professional Engineer will provide the Design,
Construction and Record-keeping Quality Control and Assurance Plans described herein. A
copy of the agreement must be filed with the Director of Development Services.
Schedule I - Quality Control
3 of 5
City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.2
Construction Requirements
The Owner must demonstrate to the satisfaction of the Director of Development Services that the
Owner has or will retain the services of one or more qualified contractors to undertake the
construction of the Works and Services. The Owner must provide the City with the name and
address of its contractor(s) together with a summary of the projects that the contractor(s) has
undertaken that are similar in scope, nature and value to the Works and Services prior to
awarding the contract(s) to the contractor.
In the case where the contractor has not performed similar Works and Services in the City, the
Director of Development Services may require that the Owner provide a list of projects and
references from other municipalities that demonstrates that the contractor(s) is qualified to
undertake the Works and Services.
The Owner must ensure that its contractor(s) constructs the Works and Services in accordance
with the design, drawings, plans and specifications approved for construction by the Director of
Development Services.
1.3
Quality Control and Assurance Plans
Requirements regarding the Design Quality Control and Assurance Plan is as follows:
The Owner must submit or cause the Professional Engineer to submit a Design Quality
Control and Assurance Plan to the City for approval coincident with submission of the first
design drawings.
The Owner's proposed Design Quality Control and Assurance Plan must detail the
procedures that will be used to ensure and verify that the design for the Works and Services,
including all plans, drawings and specifications, must be completed in accordance with the
minimum design standards set out in this bylaw.
In the case of design items related to pump stations, structures, structural fills, geotechnical
or hydro-geotechnical items or any item not described in other Schedules, the Design Quality
Control and Assurance Plan must show such specialist and/or sub-consultants with suitable
experience in these works.
Schedule I - Quality Control
4 of 5
City of Dawson Creek
Subdivision and Development Servicing Bylaw
Construction Quality Control and Assurance Plan is as follows:
The Owner must submit or cause the Professional Engineer to submit a Construction Quality
Control and Assurance Plan to the Director of Development Services coincident with
submission of the first design drawings to the City.
The Owner's proposed Construction Quality Control and Assurance Plan must detail the
procedures that will be used to ensure and verify that the Works and Services must be
constructed in accordance with the Professional Engineer's design, plans, drawings and
specifications. The Construction Quality Control and Assurance Plan must include:
A proposed construction schedule showing milestone dates and the dates of Provisional
Completion of the Works and Services.
The nature and frequency (periodic or full-time resident) of the proposed site
inspections during construction to ensure that all Works and Services constructed satisfy
the intent of the design and conform to the drawings, plans and specifications.
The nature and frequency of the proposed field and laboratory testing requirements for
the Works and Services including what materials and equipment are to be tested, what
types of tests will be performed and when these tests are to take place.
Such information as the Director of Development Services may stipulate from time to
time.
Record-keeping Quality Control and Assurance Plan is as follows:
The Owner must submit or cause its Professional Engineer to submit a Record-keeping
Quality Control and Assurance Plan to the Director of Development Services coincident with
submission of the first design drawings.
The Owner's proposed Record-keeping Quality Control and Assurance Plan must detail the
procedures that will be used to ensure and verify that proper records will be kept and
maintained throughout the design, construction and warranty phases of the Works and
Services. The Record-keeping Quality and Assurance Control Plan must ensure that the
following records are kept as a minimum:
Quality manual and standards.
Details of any field design or construction changes to the drawings, plans and
specifications to which changes are approved in writing by the City.
Deficiency identification forms (Items of the work that are either not supplied or
constructed in accordance with the design (drawings, plans and specifications) or that
require remedial or corrective action).
Schedule I - Quality Control
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Deficiency disposition/verification Forms (List of the foregoing items of the work that
have been corrected).
Inspection and test records.
Field measurement records of completed Works and Services that have been used by
the Professional Engineer to accurately prepare reproducible record drawings that are
filed with the City.
Notwithstanding the generality of the foregoing, the Owner must ensure that its Professional
Engineer provides the City with the following at the times and in the manner set out below:
Certification prior to paving that it has inspected those items of the Works and Services that
are below areas to be paved such as roads, walkways, driveways and parking lots, have been
inspected and that same comply with the design (drawings, plans and specifications). Such
certification must be accompanied by all test and inspection reports and by video tapes and
reports on pipe lines.
Certification prior to acceptance by the City that surface works including paving, drainage,
curbs and gutters, sidewalks, street lights, etc. have been constructed in accordance with the
design (drawings, plans and specifications).
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE J
STANDARDS FOR SUBMISSION BY DEVELOPER
Schedule J - Standards for Submission by Developer
1 of 26
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE J - STANDARDS FOR SUBMISSION BY DEVELOPER
1.0
GENERAL ........................................................................................................................... 3
1.1
Introduction ....................................................................................................................... 3
1.2
General Requirements .......................................................................................................... 3
1.3
Abbreviations ..................................................................................................................... 3
2.0
DRAFTING STANDARDS ......................................................................................................... 4
2.1
Sheet Layout ...................................................................................................................... 4
2.2
Dimensions and Units ........................................................................................................... 4
2.3
Lettering ............................................................................................................................ 4
2.4
Scales................................................................................................................................ 5
3.0
DRAWING STANDARDS - DIGITAL ............................................................................................ 5
3.1
CAD Creation Guidelines ....................................................................................................... 5
3.2
Layer Naming Convention ..................................................................................................... 6
3.3
SPECIAL LAYERS................................................................................................................... 7
3.4
STANDARD LAYERS .............................................................................................................. 8
3.5
STANDARD OBJECT PROPERTIES ........................................................................................... 15
3.6
SYMBOLS ......................................................................................................................... 16
4.0
REQUIRED DRAWINGS ........................................................................................................ 16
4.1
Cover Sheet (Title Page) ...................................................................................................... 16
4.2
Key Plan(s) ....................................................................................................................... 16
4.3
Building Envelope Plan (if applicable) ..................................................................................... 17
4.4
Composite Plan(s) (as required) ............................................................................................ 17
4.5
Plan / Profile Drawings ....................................................................................................... 18
4.6
Grading Plan(s) ................................................................................................................. 20
4.7
Landscape Plan(s) .............................................................................................................. 22
4.8
Integrated Stormwater Management Plan (ISMP) ..................................................................... 22
4.9
Erosion and Sediment Control Plan(s) .................................................................................... 23
4.10
Street Lighting Plan(s) ......................................................................................................... 23
4.11
Street Sign, Paint Marking, and Traffic Control Device Plans ....................................................... 23
4.12
Traffic Management Plan(s) ................................................................................................. 24
4.13
Road Cross Section Plan(s) ................................................................................................... 24
4.14
Construction Details ........................................................................................................... 24
4.15
Electrical, Gas, and Communication Utilities ............................................................................ 24
5.0
DRAWING SUBMISSIONS ..................................................................................................... 24
5.1
Design Submissions ............................................................................................................ 24
5.2
Record Drawings ............................................................................................................... 25
5.3
Electronic Drawings ........................................................................................................... 25
5.4
Digital Hard Copies ............................................................................................................ 26
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
List of Tables
Table J1: Layer Naming Conventions
Table J2: Special Layers
Table J3: Details
Table J4: Grading
Table J5: Landscaping
Table J6: Legal/Cadastral
Table J7: Planning
Table J8: Roads
Table J9: Sanitary Sewer
Table J10: Storm Sewer
Table J11: Stormwater Management
Table J12: Structures and Surface Features
Table J13: Survey
Table J14: Topography
Table J15: Shallow Utilities
Table J16: Water
Table J17: Titleblock
Table J18: Point Group Types
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
1.0
GENERAL
1.1
Introduction
This Schedule outlines the minimum standards and requirements for design and record drawing
submissions for Works and Services.
Where a City or MMCD detail drawing exists, it is sufficient to refer to the appropriate drawing by
reference number and date of issue. Where a detail drawing does not exist, or is unsuitable for a
particular case, detail drawings must be prepared to accurately portray the various elements of
the installation.
Where no standard is defined in this Schedule for the preparation of a drawing to portray a
particular service, structure, or other item, instructions and requirements may be obtained by
discussion with City staff.
1.2
General Requirements
Drawings must clearly show existing and proposed locations of all utilities using offsets from
property lines or boundaries of rights-of-way.
All drawings must be signed and sealed by a Professional Engineer registered in the Province of
British Columbia.
Elevations must be relative to geodetic datum. Horizontal coordinates must be referenced to
UTM coordinate system NAD83. Vertical datum is CGVD 1928 - BC.
1.3
Abbreviations
UTM
Universal Transverse Mercator
NAD83
1983 North American Datum
BOC
Back of Curb
EC
End of Curve
BC
Beginning of Curve
PI
Point of Intersection
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
2.0
DRAFTING STANDARDS
2.1
Sheet Layout
Drawing sheet layout(s) must conform to and include the following:
Sheet size to be ANSI D 22 x 34 in (558.8 x 863.6 mm).
A north arrow must be placed close to the top right side of each plan view on the sheet.
A title block that describes the contents of the drawing (eg. Key plan, road, etc.) and clearly
indicates the location of the works by road name(s) and/or legal description.
Drawing scale, date, revision history block, and a detailed legend must also be included on
each sheet layout.
2.2
Dimensions and Units
The following conventions must be used:
Dimensions and units must be shown in metric. No imperial units are permitted.
All distances, elevations, and coordinates must be given in metres to accuracy of 3 decimal
places.
Grades must be given as a percentage to accuracy of 2 decimal places.
Areas must be in square meters rounded to the nearest square meter.
All pipe sizes must be given in millimeters as per ASTM specifications using:
1 inch = 25 mm
Existing imperial dimensions, except for pipe sizes, are to be soft converted using the factors:
1 inch = 25.4 millimetres
1 foot = 0.3048 metres.
2.3
Lettering
Lettering is to be an open style of Vertical Gothic (eg. CG Omega or AutoCAD - 'romans').
All lettering to maintain a 1:10 ratio between plotted text height and plotted pen thickness.
The minimum plotted text height must be 1.5 mm.
The maximum plotted text height must be 5.0 mm.
The standard lettering height is 2.0 mm.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
2.4
Scales
The following are acceptable scales to be used:
Location and Key Plans
-
1:1000; 1:2500; 1:5000; 1:10000
Composite Plans
-
1:500; 1:1000; 1:2500
Plan/Profile Drawings -
Horizontal 1:500 or 1:250 Vertical 1:50 or 1:25
Cross Sections
-
Horizontal 1:100 Vertical 1:50
Details
-
1:100; 1:20; 1:10
3.0
DRAWING STANDARDS - DIGITAL
3.1
CAD Creation Guidelines
3.1.1
Software Guidelines
All drawings must be in standard AutoCAD Version 2004 or later with no extensions. All
drawing objects must be standard AutoCAD entities. In order for this to occur, set the
AutoCAD system variable PROXYGRAPHICS to 1.
The use of third party software for AutoCAD will be at the discretion of the
contractor/consultant. As these packages typically generate proprietary layers, linetypes and
blocks, the contractors/consultant must ensure these items conform to the specifications as
outlined in this document.
All linetypes, fonts, font styles, dimensioning styles, symbols, blocks and layers not deemed
as project critical must be purged. Please note that these items may be needed for future
project work.
Drawings are to be submitted in .PDF format.
All AutoCAD drawing entities must be on modelspace for the final drawings with title block
only in paperspace.
3.1.2
Layers and Symbology
A base drawing containing all the standard blocks and layering will be provided by the as part of
these specifications.
3.1.3
Colour and Pen Assignments
A .ctb file with colour and layer specifications will be provided by the City.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
3.1.4
Fonts and Text Sizes
Only standard text fonts supplied with AutoCAD will be used.
3.1.5
Base Drawings
The layer "BMBASE" must be used as the staging layer for inserting and referencing
external drawings. The XREF drawings will be inserted as symbols (blocks) at the coordinates
(0,0) with a scale factor of 1.
3.1.6
File Storage and Transfer
All files transferred back to the City must be in the standard AutoCAD DWG format. Any AutoCAD
blocks and XREF's must also be included.
3.2
Layer Naming Convention
The following is the standard for layering name conventions to be used on all drawings being
submitted:
3.2.1
Naming Convention:
X-<TYPE>-DESC
X = Prefix
TYPE = Types (see Table K1)
DESC = Description of the layer or layer name (see Section 3.4)
Example: E-SAN-MH = Existing Sanitary Manhole
3.2.2
Prefixes:
The following are to be used as the prefix 'X' in the naming convention:
E - Existing
D - Detail
P - Proposed
F - Future
T - Titleblock
3.2.3
Types:
The following Table J1 shows the 'TYPE' to be used in the naming convention.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J1: Layer Naming Conventions
LAYER CATEGORY
CATEGORY DESCRIPTION
ELEC
Electrical Diagrams (Not Shallow Utilities)
GRADE
Grading
LAND
Landscaping
LGL
Legal/Cadastral
MECH
Mechanical Diagrams
PLAN
Planning
ROAD
Roads
SAN
Sanitary
STM
Storm
SWM
Stormwater Management
STRUC
Structures and Surface Features
SURV
Survey
TOPO
Topography
UTIL
Shallow Utilities
WAT
Water
NOTE: When 'T' or 'D' is the prefix, go directly to 'DESC' (i.e. T-border)
3.2.4
Suffixes:
Suffixes may be used to describe in more detail the layer or to further separate objects of a
similar type. For example, instead of placing all sanitary sewer mains on a layer called 'E-SAN-
MAIN', you could place them on layers 'E-SAN-MAIN-150-DR35' and 'E-SAN-MAIN-200-DR35'.
3.3
SPECIAL LAYERS
The following list of layers are pre-set layers contained in the City's Standard Drawing Template
file (DC_CITY_BASE.dwt). Table J2 describes a few special layers that do not follow the layer
convention set out in Section 3.2
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J2: Special Layers
LAYER NAME
PEN #
LINE TYPE
TYPE OF DATA
_MVIEW
7
Continuous
Viewports
_IMAGE
7
Continuous
Images (i.e. Aerial, etc.)
_TEMP
7
Continuous
Temporary Lines, Notes, Etc
_XREF
7
Continuous
General Cross References
_XREF-DES
7
Continuous
Design Dwg Cross Reference
_XREF-LAN
7
Continuous
Landscape Dwg Cross Reference
_XREF-LGL
7
Continuous
Legal Dwg Cross Reference
_XREF-UTL
7
Continuous
Utility Dwg Cross Reference
3.4
STANDARD LAYERS
The following layers are defined in the City's Standard Drawing Template file (DC_CITY_
BASE.dwt). Each of these layers will use the prefixes defined in Section 3.2.
Table J3: Details
LAYER NAME
PEN #
LINE TYPE
TYPE OF DATA
LINE-LGT
26
Continuous
Linework Lgt Penweight
LINE-MED
24
Continuous
Linework Med Penweight
LINE-HVY
20
Continuous
Linework Hvy Penweight
PAT
27
Continuous
Hatch Patterns
TEXT-LGT
26
Continuous
Text Lgt Penweight
TEXT-MED
24
Continuous
Text Med Penweight
TEXT-HVY
20
Continuous
Text Hvy Penweight
Table J4: Grading
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
GRADE-ARROW
65
64
252
Continuous
Grading Arrows
GRADE-ELEV
63
62
252
Continuous
Spot Elevations
GRADE-PAT
253
252
254
Continuous
Hatch Patterns
GRADE-TEXT
65
64
252
Continuous
Grading Text
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J5: Landscaping
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
LAND-BOLLARD
73
72
252
Continuous
Bollards
LAND-BORDER
73
72
252
Continuous
Borders
LAND-CONC
73
72
252
Continuous
Concrete Features
LAND-FIXTURES
73
72
252
Continuous
Fixtures/Furniture
LAND-HEDGE
73
72
252
Continuous
Hedges
LAND-PATH
73
72
252
Continuous
Pathways
LAND-PLANTER
73
72
252
Continuous
Planters
LAND-RETWALL
73
72
252
Continuous
Retaining Walls
LAND-SHRUB
71
70
252
Continuous
Shrubs
LAND-TREE
71
70
252
Continuous
Trees
LAND-TREELINE
73
72
252
Continuous
Edge Of Treeline
LAND-TEXT
75
74
252
Continuous
Landscaping Text
Table J6: Legal/Cadastral
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
LGL-ADRS-TEXT
145
144
252
Continuous
Address Text
LGL-BLOCK-TEXT
145
144
252
Continuous
Block Text
LGL-BLOCK
141
140
252
Continuous
Block Linework
LGL-DIM-TEXT
145
144
252
Continuous
Dimension Text
LGL-EASE
141
140
252
Hidden
Easement Linework
LGL-EASE-TEXT
145
144
252
Continuous
Easement Text
LGL-LOT
141
140
252
Continuous
Lot Linework
LGL-LOT-TEXT
145
144
252
Continuous
Lot Text
LGL-PLAN-TEXT
145
144
252
Continuous
Plan Of Subd. Text
LGL-SEC-TEXT
145
144
252
Continuous
Section/Range/Tp.
LGL-STRNAME
141
140
252
Continuous
Street Names
LGL-RW-ROADS
141
140
252
Continuous
Road Right Of Way
LGL-RW-ROADS-TEXT
145
144
252
Continuous
Road Row Text
LGL-RW-UTIL
141
140
252
Dashed
Utility Right Of Way
LGL-RW-UTIL-TEXT
145
144
252
Continuous
Utility Row Text
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table K7: Planning
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
PLAN-AREA
41
40
254
Continuous
Areas Of Measurement
PLAN-BDY
48
10
254
Dashdot
Boundaries
PLAN-PAT
49
47
254
Continuous
Hatch Patterns
PLAN-LU
43
42
254
Continuous
Land Use
PLAN-MET
43
42
254
Continuous
Planimetrics
PLAN-SAN
91
90
254
Continuous
Sanitary
PLAN-STM
211
210
254
Continuous
Storm
PLAN-WAT
151
150
254
Continuous
Water
PLAN-TEXT
45
44
254
Continuous
Text
PLAN-ZON
43
42
254
Continuous
Zoning
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J8: Roads
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
ROAD-CL
25
24
252
Center
Road Centreline
ROAD-CURB-ASP
23
22
252
Continuous
Asphalt Curb
ROAD-CURB-BACK
21
20
252
Continuous
Back Of Curb
ROAD-CURB-CONC
23
22
252
Continuous
Concrete Curb
ROAD-CURB-FACE
21
20
252
Continuous
Face Of Curb
ROAD-CURB-LIP
23
22
252
Continuous
Lip Of Curb
ROAD-CURB-TEXT
25
24
252
Continuous
Curb Text
ROAD-DRIVE-ASP
23
22
252
Continuous
Asphalt Driveway
ROAD-DRIVE-CONC
23
22
252
Continuous
Concrete Driveway
ROAD-DRIVE-GRAVEL
23
22
252
Continuous
Gravel Driveway
ROAD-DRIVE-PSTONE
23
22
252
Continuous
Paving Stone Driveway
ROAD-DRIVE-TEXT
25
24
252
Continuous
Driveway Text
ROAD-EOG
23
22
252
Continuous
Edge Of Gravel
ROAD-EOP
23
22
252
Continuous
Edge Of Pavement
ROAD-MARK
25
24
252
Continuous
Pavement Markings
ROAD-SHLD
23
22
252
Dashed
Edge Of Shoulder
ROAD-SIGN
23
22
252
Continuous
Road Sign
ROAD-TEXT
25
24
252
Continuous
Text
ROAD-WALK
23
22
252
Continuous
Misc. Sidewalk
ROAD-WALK-ASP
23
22
252
Continuous
Asphalt Sidewalk
ROAD-WALK-CONC
23
22
252
Continuous
Concrete Sidewalk
ROAD-WALK-TEXT
25
24
252
Continuous
Sidewalk Text
Schedule J - Standards for Submission by Developer
12 of 26
City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J9: Sanitary Sewer
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
SAN-MAIN
91
90
252
Center
Gravity Lines
SAN-CASING
93
92
252
Continuous
Casing Pipe
SAN-FM
91
90
252
Center
Forcemains
SAN-LS
93
92
252
Continuous
Lift Stations
SAN-MH
93
92
252
Continuous
Manholes
SAN-SEPTIC
93
92
252
Continuous
Septic Lines/Fields/Tanks
SAN-SERV
91
90
252
Center
Service Hookups
SAN-SERV-IC
93
92
252
Continuous
Cleanout/Insp. Chamber
SAN-STRUC
93
92
252
Continuous
Structures
SAN-TEXT
95
94
252
Continuous
Text
Table J10: Storm Sewer
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
STM-MAIN
211
210
252
Phantom
Gravity Lines
STM-CASING
213
212
252
Continuous
Casing Pipe
STM-CB
213
212
252
Continuous
Catch Basins
STM-CBLEAD
215
214
252
Phantom
Catch Basin Lead
STM-CBMH
213
212
252
Continuous
Catch Basin / Manholes
STM-CULVERT
213
212
252
Continuous
Culverts
STM-DITCH
213
212
252
Arrow
Ditch
STM-DITCH-TEXT
215
214
252
Continuous
Ditch Text
STM-MH
213
212
252
Continuous
Manholes
STM-SERV
211
210
252
Continuous
Service Hookups
STM-STRUC
213
212
252
Continuous
Structures
STM-SWALE
213
212
252
Arrow
Swales
STM-SWALE-TEXT
215
214
252
Continuous
Swale Text
STM-TEXT
215
214
252
Continuous
Text
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J11: Stormwater Management
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
SWM-BDY
253
251
254
Continuous
Swm Boundary
SWM-PAT
253
251
254
Continuous
Swm Hatch/Pattern
SWM-POND
95
94
252
Continuous
Swm Ponding
SWM-POND-TEXT
95
94
252
Continuous
Swm Pond Text
SWM-TEXT
95
94
254
Continuous
Swm Text
Table J12: Structures and Surface Features
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
STRUC-BLDG
243
242
252
Continuous
Buildings
STRUC-BLDG-TEXT
245
244
252
Continuous
Building Text
STRUC-BRIDGE
243
242
252
Continuous
Bridges
STRUC-FNC
243
242
252
Fence
Generic Fenceline
STRUC-FNC-CLINK
243
242
252
Fence
Chainlink Fenceline
STRUC-FNC-POST
243
242
252
Fence
Post & Cable Fenceline
STRUC-FNC-TEXT
243
242
252
Continuous
Fence Text
STRUC-FNC-WOOD
243
242
252
Fence
Wood Fenceline
STRUC-RETWALL
243
242
252
Continuous
Retaining Walls
STRUC-TEXT
245
244
252
Continuous
Structures Text
Table K13: Survey
LAYER NAME
E
P
LINE TYPE
TYPE OF DATA
SURV-CONTROL
45
44
Continuous
Control/ASCM's
SURV-FIP
45
44
Continuous
Found Iron Pins
SURV-GEOTECH
45
44
Continuous
Mon. Well, Test Pit, BH, PZ
SURV-TRAV
45
44
Phantom
Traverse Lines
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J14: Topography
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
TOPO-CONT-MAJ
67
64
252
Continuous
Major Contours
TOPO-CONT-MIN
69
66
252
Continuous
Minor Contours
TOPO-CONT-TEXT
65
66
252
Continuous
Contour Text
TOPO-SPOTELEV
63
62
252
Continuous
Spot Elevation
TOPO-TOE
63
62
252
Continuous
Toe Of Slope
TOPO-TOP
63
62
252
Continuous
Top Of Slope
TOPO-TEXT
65
64
252
Continuous
Slope Text
TOPO-TREELINE
63
62
252
Continuous
Treeline
TOPO-WATER-CL
63
62
252
Continuous
Single Line Wat Feature
TOPO-WATER-EDGE
63
62
252
Continuous
Double Line Wat Feature
Table J15: Shallow Utilities
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
UTIL-CABLE
191
190
252
Cable
Tv Cable
UTIL-CABLE-TEXT
195
194
252
Continuous
Tv Cable Text
UTIL-ELEC
191
190
252
Elec
Line, Box, Mh, Trans.
UTIL-ELEC-LIGHT
193
192
252
Continuous
Light Std
UTIL-ELEC-PP
193
192
252
Continuous
Power Pole
UTIL-ELEC-SERV
191
190
252
Elec
Electricity Service
UTIL-ELEC-TEXT
195
194
252
Continuous
Electricity Text
UTIL-GAS
191
190
252
Gas
Gas
UTIL-GAS-SERV
191
190
252
Gas
Gas Service
UTIL-GAS-TEXT
195
194
252
Continuous
Gas Text
UTIL-TEL
191
190
252
Tel
Telephone Line
UTIL-TEL-MH
193
192
252
Continuous
Telephone Manhole
UTIL-TEL-SERV
191
190
252
Tel
Telephone Service
UTIL-TEL-TEXT
195
194
252
Continuous
Telephone Text
UTIL-CON1
191
190
252
Con1
1 Use Conduit
UTIL-CON2
191
190
252
Con2
2 Joint Use Conduit
UTIL-CON3
191
190
252
Con3
3 Joint Use Conduit
UTIL-CON-TEXT
195
194
252
Continuous
Conduit Text
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Table J16: Water
LAYER NAME
E
P
F
LINE TYPE
TYPE OF DATA
WAT-MAIN
151
150
252
Dashed
Watermains
WAT-CASING
155
154
252
Continuous
Casing Pipe
WAT-CHAMB
153
152
252
Continuous
Chambers
WAT-SERV-CS
153
152
252
Continuous
Curb Stops
WAT-FTG
153
152
252
Continuous
Fittings
WAT-HYD
153
152
252
Continuous
Hydrants
WAT-IRRIG
151
150
252
Dashed
Irrigation
WAT-SERV
151
150
252
Dashed
Water Service
WAT-STRUC
153
152
252
Continuous
Lift Sta, Reservoirs
WAT-TEXT
155
154
252
Continuous
Water Text
WAT-VALVE
153
152
252
Continuous
Valves
Table J17: Titleblock
LAYER NAME
PEN #
LINE TYPE
TYPE OF DATA
T-BDR
180
Continuous
Border Linework
T-BLK-TEXT-LGT
184
Continuous
Titleblock Info Text
T-BLK-TEXT-MED
182
Continuous
Titleblock Info Text
T-BLK-TEXT-HVY
180
Continuous
Titleblock Info Text
T-GRID-MAJ
185
Continuous
Major Grid Line
T-GRID-MIN
187
Continuous
Minor Grid Line
T-GRID-TEXT
180
Continuous
Grid Text
T-LEGEND
184
Continuous
Legend
T-NORTH
184
Continuous
North Arrow
T-STAMP-DISCLAIMER
184
Continuous
Disclaimer Stamp
T-STAMP-FORISSUE
184
Continuous
For Issue Stamp
T-STAMP-PERMIT
184
Continuous
Permit To Practice Stamp
T-STAMP-PLOT
184
Continuous
Plot/Date Stamp
3.5
STANDARD OBJECT PROPERTIES
All objects colour and linetype properties should be set to "bylayer". This ensures the greatest
amount of control over the entire drawing and enables changes to be made quickly and easily.
Schedule J - Standards for Submission by Developer
16 of 26
City of Dawson Creek
Subdivision and Development Servicing Bylaw
3.5.1
Point Groups
Naming Convention: <TYPE>-<SOURCE>-<DATE>
Type = See Table J18
Source = Data source, surveyor, etc...
Date = Current date in the format yyyy-mm-dd
Table J18: Point Group Types
Name
Description
SURV
Field Surveys
UTIL
Record Utility Information (not for surface use)
CTRL
Survey Control Points
INTP
Interpolated Points
3.6
SYMBOLS
Submitted drawings must include symbols provided in the City's Standard Drawing Template file.
Symbols must be inserted using the specified insertion point, which is to be centre point of the
symbol unless otherwise indicated. Where possible, symbols are to be inserted at the end or mid
points of line segments.
4.0
REQUIRED DRAWINGS
4.1
Cover Sheet (Title Page)
The cover sheet must show the following information:
Name of Development or Subdivision
Name and address of Owner and Professional Engineer.
Site location plan of Development or Subdivision.
Legal description of subject properties.
File numbers of approving authorities. (i.e. City and/or Ministry).
Complete drawing index of all sheets belonging to the set.
Other pertinent information
4.2
Key Plan(s)
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Key Plans must show the following information:
Lot numbers, plan numbers, and road names of the subject Development or Subdivision and
adjoining properties.
Cross reference of the drawings by outlining the area contained in each drawing and
referencing that drawing by drawing number.
General construction notes.
Other pertinent information.
4.3
Building Envelope Plan (if applicable)
Building Envelope Plans must show the following information:
Overall plan of current phase
Lot numbers
Roads, curbs, gutters and sidewalks
Rights of way and easements
Offset lines from all property boundaries indicating required building setbacks
10 metre by 10 metre square on each parcel indicating the required minimum building
envelope
Notes that indicate the required setbacks from all property boundaries pursuant to the
Zoning Bylaw
Other pertinent information
4.4
Composite Plan(s) (as required)
Composite Plans must show the following information:
All existing and proposed utilities, roads, walkways, and sidewalks.
All rights of way and easements including widths.
Control monuments with identification number.
All legal information, including bearings, dimensions, lot numbers, block numbers, legal plan
numbers, and street names. All lots must be numbered.
Show legal lot line dimensions.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
All roadway dimensions including width of right of way, BOC to BOC and BOC to edge of right
of way.
Area of each parcel.
Other pertinent information.
4.5
Plan / Profile Drawings
Plan/Profile drawings must show the following information:
4.5.1
General
The following criteria applies to all drawings:
Both plan and profile stationing must be tied to a property line or road boundary.
The profile must be shown at true centerline length and projected below the plan in as close
a horizontal relationship as possible.
The top half of a plan/profile sheet must show the plan view and must show the legal layout
with legal descriptions of all properties, the location of all sidewalks, catch basins,
underground utilities such as sewer, water, telephone, television power, manholes, valves,
hydrants, and all survey monuments, etc.
Drawings must also show existing dwellings, fences, trees, hedges, unusual ground features,
existing roads and driveways including the type such as asphalt, concrete or gravel.
Plan/profile drawings for various services may be combined on one plan providing the plans
are clear and readable. Plan/profile drawings may combine the following services:
Roads & Storm Drains
Sanitary Sewers & Water
Roads, Storm Drains, Sanitary Sewers and Water may be included on one drawing
depending on the complexity of the design and at the discretion of the Director of
Development Services.
4.5.2
Road Plan/Profile Drawings (may be combined with Storm Drains)
Road plan views must show the following information:
Drawings must show width of road, width of shoulders, and the offset of curb from property
line.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Chainages of the B.C. and E.C. of horizontal curves must be shown together with the delta
angle, centerline radius, tangent length, and centerline arc length. Curb radii are not
required if the centerline radius and road width are shown, except on curb returns at
intersections and at the end of cul-de-sacs.
Road profile views must show the following information:
The design gutter and/or centerline grade (%).
Vertical curve chainage and elevations of B.C., E.C. and P.I.:
the external value, e;
the length of vertical curve;
the chainage and elevation of the low spot of sag curves; and
K value of vertical curvature (crest on sag).
Existing ground elevation along the centerline of the proposed roadway and/or the edge of
existing asphalt.
4.5.3
Water Plan/Profile Drawings (may be combined with Sanitary Sewer)
Water plan views must show the following information:
Offset of pipelines from property lines.
Length and size of pipe.
Offset of connections from property lines.
The locations of hydrants, valves, services, end-of-main, or other appurtenances referenced
to the nearest property line.
Information on any curves or pipe deflections.
Easements (existing and/or required).
Water profile views must show the following information:
Surface profiles (existing and design, if applicable) over proposed main.
Length, size, grade, type, and material of pipe.
Profiles of invert and crown of pipes.
Location, type and invert elevation of all crossing utilities.
Schedule J - Standards for Submission by Developer
20 of 26
City of Dawson Creek
Subdivision and Development Servicing Bylaw
4.5.4
Storm Drains and Sanitary Sewer Plan/Profile Drawings
Storm and Sanitary plan views must show the following information:
The structural details of all manholes and chambers, etc. not covered by standard drawings.
Offset of pipelines from property lines.
The size of pipe.
Offset of connections from property lines.
The locations of manholes, clean-outs and services relating to property lines.
Information on any curves or pipe deflections.
Easements (existing and/or required).
Future curb and gutter lines (if applicable).
Manhole identification numbers.
Inverts of service connections at property line (if applicable).
For storm drainage, features such as ditches, culverts, streams, channels, etc.
Storm and sanitary profile views must show the following information:
Surface profiles (existing and design, if applicable) over proposed main.
Length, size, grade, type, and material of pipe.
Profiles of invert and crown of pipes.
Location, type and invert elevation of all crossing utilities.
Invert elevations of manholes.
Alignment station of manholes.
Manhole identification number.
Rim elevations of proposed or adjusted manholes.
4.6
Grading Plan(s)
In addition to any other requirements presented, grading plans must show the following
information:
Schedule J - Standards for Submission by Developer
21 of 26
City of Dawson Creek
Subdivision and Development Servicing Bylaw
4.6.1
General
Clearing and grubbing boundaries
Fill and excavation areas (by shading) including structural fill areas
Locations of required temporary (during construction) and permanent siltation abatement and
erosion control measures,
Pre-development contour lines at a maximum 0.5 m interval. The topographic information
must extend a minimum 30.0 m outside the development site
Proposed contours, slopes, grades, and spot elevations including surface slopes of roadways
and other surfaces with arrows indicating the direction of flow.
Proposed or existing elevations along the boundaries of the subdivision and design elevations at
all lot corners and changes of surface slope along property boundaries.
The minor (5 year return) storm sewer system with the flows calculated per section and the
accumulated flows from all upstream sections. Provision must be made for upstream
development potential where applicable;
The major (100-year return) system. The nature and detail of the major conveyance system is
to be shown, including all major drainage flow directions, ponding areas and the extent and
maximum depth of ponding anticipated for a 1 in 100 year return frequency rainfall event along
with the maximum hydraulic grade line. The overall major drainage flow route is to be clearly
defined and designated with prominent arrows. Include the direction of surface flows on all
surfaces and elevations of overflow points from local depressions and details of channel cross
sections.
Swale details including locations, easement requirements, slopes, cross sections and
construction details for the swales.
Easement and restrictive covenants - Requirements and locations for all easements and
restrictive covenants related to drainage provisions and development restrictions associated
with the drainage of the property.
4.6.2
Lot Grading
All existing corner lot elevations
All proposed corner lot elevations
Lot drainage pattern - The direction of surface drainage for each lot is to be identified, to
indicate whether split drainage or through drainage is contemplated. Proposed surface drainage
for abutting future development lands is to be shown to the extent that it will impact on the
subject lands.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Lot grading details - Typical detail diagrams of the various types of lot grading arrangements,
which will normally conform to the figures provided in the Supplementary Detail Drawings, are
to be used, identifying for each lot which typical detail applies.
The proposed building envelope with the minimum finished ground elevation adjacent to the
proposed building noted for each lot.
4.7
Landscape Plan(s)
Landscape plans must show the following information:
Extent of proposed landscape works and services
Existing and proposed property information, including lot lines, easements, right of ways,
legal descriptions, addresses and dimensions
Existing and proposed contours, slopes, grades and spot elevations for landscaped areas (if
not already shown on grading plan)
Existing and proposed buildings, structures, roads, curbs, sidewalks, walls, fences, signs, site
features and other appurtenances
Existing vegetation proposed to be removed, relocated or retained
Areas of proposed preservation, naturalization, restoration, lawn and landscaping, including
soil types, depths and amendments
Proposed plant species name (botanical and common), size and planting condition
Existing and proposed irrigation systems (if required)
Construction details and specifications or other pertinent information as required.
4.8
Integrated Stormwater Management Plan (ISMP)
In addition to any other requirements presented, Integrated Stormwater Management Plans
must show the following information:
Site and surrounding area (400 m minimum outside development) showing roads and major
features. A small location plan of the watershed is also to be included.
Major contours at 1.0 m and minor contours at 0.2 m elevation intervals (existing and
proposed)
Existing and proposed major surface flow paths.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
Detention pond details, if applicable.
Area, in hectares, of development and the total area of drainage basin.
Directional arrows of flow within the site and on surrounding areas.
Sub-catchment boundaries, coefficients and areas.
Pipe system including size, grade, and minor and major flows (a table may be utilized).
The subject development is to be highlighted.
Other pertinent information (see Schedule D)
4.9
Erosion and Sediment Control Plan(s)
In addition to any other requirements presented in this bylaw, Erosion and Sediment Control
Plans must show the following information:
Existing contours of the site at an interval sufficient to determine drainage patterns.
Final contours if the existing contours are to be significantly changed.
Final drainage patterns/boundaries.
Existing vegetation such as significant trees, shrubs, grass, and unique vegetation.
Limits of clearing and grading.
Erosion and sediment control measures (temporary and permanent) including locations,
names and details, in accordance with "Land Development Guidelines for the Protection of
Aquatic Habitat".
Storm Drainage systems including drain inlets, outlets, pipes, and other permanent drainage
facilities (swales, waterways, etc.).
4.10
Street Lighting Plan(s)
A plan view of the street lighting must be provided. General notes on the plan must reference
municipal standards, specifications and appropriate design criteria.
4.11
Street Sign, Paint Marking, and Traffic Control Device Plans
A drawing identifying signs, markings, and required control devices must be provided. Detailed
drawings may be required for traffic control devices. These plans can be added to road plan
drawings if the plan is clear and readable.
Schedule J - Standards for Submission by Developer
24 of 26
City of Dawson Creek
Subdivision and Development Servicing Bylaw
4.12
Traffic Management Plan(s)
Detail routes for construction traffic and traffic controls for traffic on existing roads affected by
construction may be required if requested by the Director of Development Services.
4.13
Road Cross Section Plan(s)
Must be scaled at 1:100 horizontal and 1:50 vertical and must note the existing ground elevation,
the proposed elevations of the road centreline, the curb and gutter (or road edge) and property
lines. Cross-sections are required at critical locations as required by the Director of Development
Services.
4.14
Construction Details
Show all proposals for construction which are not covered or specifically detailed in the City's
standards. Where there is a City or MMCD standard, it is expected to refer to the detail drawing
number.
4.15
Electrical, Gas, and Communication Utilities
The Owner's Professional Engineer must obtain and submit engineering drawings from each
utility drawing showing detailed design and construction requirements for any necessary Works
and Services. The Professional Engineer must assemble all drawings and superimpose them onto
an overall subdivision compilation drawing(s) to ensure that there are no conflicts between any
of the municipal services and the shallow utilities both underground and above ground. The
Owner's Professional Engineer must also provide sealed Shop Drawings of the screw piling design
for all lamp standards as part of their Electrical design drawings.
5.0
DRAWING SUBMISSIONS
5.1
Design Submissions
3 full size paper copies of all design drawings are required for design submissions. The Owner
must also submit to the City a complete set of electronic design drawings of the subdivision or
development in a digital hard copy in Adobe PDF format in accordance with this Schedule.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
5.2
Record Drawings
Record drawings must be submitted prior to issuance of a Certificate of Provisional Completion of
All Works. Record drawings must be delivered in both paper and electronic format(s) to the City.
Record drawings must include all drawings in approved design submission or as requested by
Director of Development Services.
The Owner must submit to the City a complete set of electronic drawings of the subdivision or
development in a digital hard copy in Adobe PDF format in accordance with this Schedule.
In conjunction with the record drawings, service connection records must be provided for each
lot. The service connection records must be submitted in Adobe PDF format, 8.5" x 11" letter
size, using the City's service connection record AutoCAD template form. The service connection
record must include the following record information:
Lot, Block & Plan number
Civic address
Water & sanitary service invert and depth at main and at property line
Water & sanitary service and main sizes, materials and dates of install (both in the City
boulevard and on-lot)
Date service connection record was created (date plotted)
A plan drawing (location map) showing:
Lot relative to road and other lots, clearly identified
North arrow
Lot services and all other underground services maintained by the City (water, sanitary
sewer, storm sewer , and street lighting)
Any lot features like swales, easements or right of ways
Perpendicular distance from closest adjacent property line to water shutoff
Lot grading information
5.3
Electronic Drawings
5.3.1
General Requirements
The Owner must submit to the City a complete set of electronic drawings of the Subdivision or
Development in AutoCAD .dwg format.
Schedule J - Standards for Submission by Developer
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
The electronic drawing must be prepared in accordance with Section 3. All external files
associated with the electronic drawing (e.g. special fonts, line types, and/or images) must be
supplied with the electronic drawing submission. No drawing is to be submitted that contains any
external references (xrefs). All externally referenced drawings must be bound prior to submittal.
5.4
Digital Hard Copies
A digital hard copy is any digital file that is reproducible without the ability to modify the
drawings contents or appearance.
5.4.1
General Requirements
Adobe's Portable Document Format (*.pdf) is the preferred file type.
Drawing sets submitted as a digital hard copy must be electronically sealed by the Professional
Engineer.
5.4.2
Device/Document Settings for Plotting Adobe Portable Document Format
Ensure all text is legible and the shading and hatching ordered so as not to block or hide other
line work and/or text.
The following settings must be used when plotting the drawings to Adobe PDF:
paper size to be ANSI D 22" x 34"
layout to be "landscape"
graphic print quality to be no less than "600 dpi"
City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE K
SUPPLEMENTARY DETAIL DRAWINGS
Schedule K - Supplementary Detail Drawings
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
SCHEDULE K - SUPPLEMENTARY DETAIL DRAWINGS
Naming of Supplementary Detail Drawings follows MMCD Standard Detail Drawings naming convention.
Supplementary drawings that replace an existing MMCD Standard Detail Drawing are denoted with an "S" in front
of the MMCD Standard Detail Drawing number.
Drawing
Number
Drawing Title
A
Roads
A1
Local Road - Typical Section
A2
Local Road (Cul-De-Sac) - Typical Section
A3
Arterial Road - Typical Section
A4
Collector - Typical Section
A5
Commercial Urban - Typical Section
A6
Industrial Urban Standard - Typical Section
A7
Industrial Rural Standard - Typical Section
A8
Neighbourhood Arterial - Typical Section
A9
Residential (Local) Road - Typical Section
A10
Village Centre Road - Typical Section
A11
Neighbourhood Arterial Stormwater Street - Typical Section
A12
Residential (Local) Stormwater Street - Typical Section
A13
Paved Lane - Typical Section
A14
Road Widths and Underground Utility Locations
A15
Multi-Use Path - Typical Section
A16
Approved Driveway Configuration Examples for Duplex Lots
G
General
SG4
Typical Utility Trench Section and Pipe Bedding Detail
SG8
Pipe Anchor Blocks
G9
Water and Sewer Crossings
G10
Landscaping and Approved Tree Species
G11
Lot Grading Typical Detail - Rear to Front Drainage
G12
Lot Grading Typical Detail - Split Drainage
G13
Lot Grading Typical Detail - Front to Rear Drainage
G14
Corrosion Protection in Native Soil at Steel or Iron Fittings
S
Storm and Sanitary
S16
Large Diameter Water and Sewer Services
S17
Rainfall Intensity-Duration-Frequency Curve
S18
Driveway Culvert Placement
W
Water
SW4
Typical Hydrant Assembly
Schedule K - Supplementary Detail Drawings
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City of Dawson Creek
Subdivision and Development Servicing Bylaw
SW6/SW7 Standard Air Valve Assembly
SW8
Buried Standpipe Detail
W11
Pressure Main Thrust Blocks
W12
Double Water Service Connection
x
x
x
x