HomeMy WebLinkAbout2018 Municipality of Bayham Design & Construction Standards
DESIGN AND CONSTRUCTION STANDARDS
FOR
THE MUNICIPALITY OF BAYHAM
2018
SPRIET ASSOCIATES LONDON LIMITED
CONSULTING ENGINEERS
Municipality of Bayham
Design and Construction Standards 2018
I N D E X
SECTION 1 ROADS
SECTION 2 STORM DRAINAGE
SECTION 3 SANITARY SEWERS
SECTION 4 WATERMAINS
SECTION 5 LOT SERVICING AND LOT GRADING
SECTION 6 DRAWINGS
Municipality of Bayham
Design and Construction Standards 2018
TABLE OF CONTENTS
Page
No.
GENERAL REQUIREMENTS
SECTION 1 - ROADS
1.1 General .................................................................................................. 5
1.2 Street Classification ....................................................................................... 5
1.3 Road Allowance, Pavement Widths, Location and Layout ............................. 6
1.4 Grades .................................................................................................. 6
1.5 Design and Construction ........................................................................... 7
1.6 Street Lighting ....................................................................................... 11
1.7 Signing and Markings ........................................................................... 11
SECTION 2 - STORM SEWERS/STORMWATER MANAGEMENT
2.1 Storm Sewers ....................................................................................... 13
2.2 Storm Water Management ........................................................................... 16
2.3 Open Channels and Culverts ............................................................... 17
2.4 Pipe Materials ....................................................................................... 19
2.5 Maintenance Holes ....................................................................................... 20
2.6 Catchbasins .................................................................................................. 21
2.7 Installation .................................................................................................. 22
2.8 Private Drain Connections ........................................................................... 23
SECTION 3 - SANITARY SEWERS
3.1 General .................................................................................................. 24
3.2 Design .................................................................................................. 24
3.3 Sanitary Sewage Flows ........................................................................... 25
3.4 Pipe Materials ....................................................................................... 26
Municipality of Bayham
Design and Construction Standards 2018
3.5 Maintenance Hole ....................................................................................... 27
3.6 Private Drain Connections ........................................................................... 27
3.7 Installation ................................................................................................. 27
SECTION 4 - WATERMAINS
4.1 General .................................................................................................. 28
4.2 Design ..................................................................................... 28
4.2.1 Pressure ...................................................................................... 28
4.2.2 Demands ................................................................................................. 28
4.2.3 Hydraulics …………………………………………………………………… 29
4.2.4 Materials ……………………………………………………………………….. 30
4.3 Installation …………………………………………………………………….. 35
4.4 Testing ………………………………………………………………………….. 40
SECTION 5 - LOT SERVICING AND LOT GRADING
5.1 Lot Servicing .................................................................................................. 41
5.2 Lot Grading .................................................................................................. 43
SECTION 6 - DRAWINGS
6.1 General .................................................................................................. 45
6.2 Drawing Standards ....................................................................................... 45
6.3 Drawings to be Submitted ........................................................................... 46
6.4 "As-Constructed" Drawings ........................................................................... 48
Municipality of Bayham
Design and Construction Standards 2018
DESIGN AND CONSTRUCTION STANDARDS
FOR
THE MUNICIPALITY OF BAYHAM
General Requirements
These Standards provide for the standardization of the design and construction of roads,
sanitary sewers, storm sewers, watermains, and lot grading in the Municipality of Bayham.
These standards shall be used in the design and construction of the above-mentioned services.
Deviations from these standards will be acceptable only under unusual circumstances and shall
be approved in writing by the Municipality's Engineer. Notwithstanding any provision of the
Design and Construction Standards for the Municipality of Bayham, these Design
and Construction Standards may not apply to capital works undertaken by the
Municipality on existing municipal infrastructure not designed or constructed to the standards
with the same.
These standards shall apply to all design and construction projects after land use
planning approvals have been finally granted and the proposed development shall comply with
the applicable Official Plan policies, Zoning By-law regulations, subdivision and consent
approvals and site plan as required for the site. These design and construction submissions
may fulfill conditions of approval related to these planning approvals.
For developments prepared subject to these guidelines, the Developer shall retain a
Professional Engineer, licensed in the Province of Ontario, for design and preparation of
Contract Drawings, Specifications and Reports.
Approval Process
When a Developer commences a project they shall proceed by requesting a preliminary
consultation meeting with the Municipality. At this meeting the following shall be discussed:
1 Nature of development
2 Location
3 Size
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Municipality of Bayham
Design and Construction Standards 2018
Approval Process (cont'd)
4 Availability of services
5 Official Plan, Zoning By-law, subdivision, site plan, consent or other land use
planning approvals
6 Any other relevant information
7 Requirements for this development, i.e. scope of reports, plans, etc.
Following the meeting, the Developer shall submit preliminary plans and design criteria for
submission to the Municipality to ensure sufficient servicing capacity exists, where applicable.
This preliminary information shall identify the following:
8 Any preliminary investigations completed such as soils report, servicing capacities
and requirements
9 Proposed entrances/exits and connection to existing streets
10 Any relevant or required reports, soils, hydrogeological, drainage, traffic studies,
environmental assessments, etc.
After the preliminary information has been reviewed and accepted, the Municipality shall
provide a written response setting out deficiencies in the submission or provide written
acceptance and direction to proceed with final design and formal submission. Once the
preliminary information has been reviewed and accepted by the Municipality, the Developer may
proceed with final design.
Formal submission of the development shall include, but not be limited to, the following:
plans, specifications and reports.
11 Cover page with key plan locating project within the Municipality
12 Overall area and servicing plans
13 Storm drainage plan including developed area and any lands tributary to
development area, storm water management facilities or low impact development
best management practices
14 Sanitary drainage plan showing all areas to be developed as well as any exterior
areas tributary to the development where applicable
15 Lot grading plans indicating grading for each lot as well as an overall grading plan
showing existing contours and drainage direction
16 Plans and profiles (Scale 1:250 horizontal, 1:50 vertical) for each street to be
constructed as well as any easements, servicing extensions, etc.
17 Boulevard tree planting plan and landscape plan
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Municipality of Bayham
Design and Construction Standards 2018
Approval Process (cont'd)
18 Legal survey
19 Any other drawings applicable to the construction of the project shall be submitted
such as road cross-sections, swale details, outlet details, erosion control and
pumping station plans and details, etc. with sufficient detail to allow a Contractor to
construct the works
20 A detailed geotechnical report, hydrogeological report, servicing report including
stormwater management and any other required reports shall be submitted
The Municipality shall review the submission package and provide comments and
markups to the Developer for revision. The Developer shall then re-submit a revised package to
the Municipality for approval. This process shall continue until final approval from the
Municipality is obtained. The developer shall enter into a development agreement with the
Municipality and shall not commence construction until the agreement is executed and
registered on title of the lands, and securities have been received by the Municipality.
In addition to the Municipality's approval, the Developer shall obtain approval, but not be
limited to, the following agencies where applicable:
21 Ministry of Environment & Climate Change (M.O.E.C.C.)
22 County of Elgin
23 Ministry of Natural Resources and Forestry
24 Ministry of Municipal Affairs
25 Conservation Authority (L.P.R.C.A.)
26 Department of Fisheries and Oceans
27 Ministry of Tourism, Culture and Health
28 Elgin St. Thomas Public Health
29 Adjacent municipalities where appropriate
The developer shall provide copies of all reports as well as approvals from the agencies
to the Municipality.
Prior to construction:
30 Copies of all approvals shall be submitted to Municipality including the Ministry of
Environment & Climate Change
31 Plan of Subdivision (or lots) shall be registered
32 Development Agreement shall be executed
33 Security deposits shall be submitted to the Municipality
34 A signed and executed copy of the Contract Documents between the Contractor and
Developer shall be submitted to the Municipality
Municipality of Bayham
Design and Construction Standards 2018
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Approval Process (cont'd)
During the construction process the Developer shall:
35 Have the Consulting Engineer provide full-time resident inspection during
construction of the works
36 Submit "as-built" drawings of the constructed works in digital and hard copy format
37 Provide details of material testing, compaction tests, video inspection, pressure and
testing, etc.
Following construction the Developer's Consulting Engineer shall provide the
Municipality with written certification that the constructed work has been completed in
conformance with the approved Contract Drawing.
Municipality of Bayham
Design and Construction Standards 2018
5
SECTION 1 - ROADS
1.1 General
All roads shall be designed and constructed in accordance with the current edition of the
"Manual of Geometric Design Standards for Canadian Roads" as published by the
Roads and Transportation Association of Canada.
1.2 Street Classification
Street Classification for residential roadways (rural or urban) shall be based on the traffic
volume and number of houses with access onto the street as follows:
Street
Auto-Oriented Estimated Daily*
Classification No. of Houses Traffic Volume
Minor-Local up to 25 0 - 250
Local up to 100 0 - 1000
Collector 100 - up 1000 - 3000
Arterial -- 3000 - up
* Traffic volumes are based on trips per household as follows:
Single Family 8-10 per day
Multi-Family 7-9 per day
Apartment 6-8 per day
Municipality of Bayham
Design and Construction Standards 2018
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1.3 Road Allowance, Pavement Widths, Location and Layout
a) The minimum width of road allowances and pavement width is shown below:
Street Minimum Minimum
Classification Road Allowance Pavement Width
Local & Minor-Local 20.10 m 7.5 m
Collector 26.10 m 9.2 m
Arterial 30.48 m 9.2 m
Industrial 26.10 m 9.7 m
b) Intersections of more than two streets shall not be permitted.
c) Streets shall intersect at right angles with each other.
d) Jogged intersections will not be permitted.
e) Street intersections shall not be closer than 60 m.
f) MSD 1A, MSD 2 and MSD 3 show the standard utility locations for residential and
industrial roads.
g) The maximum length of a cul-de-sac to the turning circle shall be 215 m without a
secondary or emergency access. MSD 4 and MSD 5 show typical residential cul-de-
sacs and industrial cul-de-sacs respectively.
h) Local street patterns should be planned to minimize through traffic and also minimize
dead ends.
i) The street system should clearly indicate the characteristic nature and function of the
road.
1.4 Grades
a) The maximum and minimum vertical road grades are 8% and 0.5% respectively, for new
developing subdivisions.
b) Vertical curves are required if the algebraic difference in grades is greater than 1%. The
minimum length of the vertical curve shall not be less than 45 m.
c) Road grades at intersections shall not exceed 2% across the intersection.
d) All roadways shall be crowned on a 2% slope.
e) Boulevards are to be sloped from the property line to the edge of the roadway at 2% to
6% (10% maximum on approval).
f) Road shoulders shall be sloped from the edge of roadway at a 6% slope.
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Municipality of Bayham
Design and Construction Standards 2018
1.5 Design and Construction
a) Cross-Sections
Typical cross-sections of residential subdivision streets shall conform to the details
shown on MSD 6 and MSD 7. Typical cross-sections of industrial subdivision streets
shall conform to the details shown on MSD 8.
b) Pavement and Granular Base
i) The gradation requirements, placing and compaction of granular materials are to
conform to the current O.P.S. Specifications, O.P.S.S. 314. Hot-mix, hot-laid asphalt
shall conform to the current O.P.S. Specifications, O.P.S.S. 310.
ii) An engineered design for residential, industrial, commercial, and arterial roads based
on geotechnical data must be submitted to the Municipality for review.
iii) For residential roads the following minimum compacted depths of granular and
asphaltic pavement courses shall be provided:
40 mm HL3 Asphaltic Concrete
50 mm HL8 Asphaltic Concrete
100 mm Granular ‘A’ Base
300 mm Granular ‘B’ Sub-base
and shall be designed in accordance with the recommendations of a
Geotechnical Engineer.
iv) Compaction
Compaction for earth fill and native backfill material forming the road subgrade shall
be 100% Standard Proctor Density.
Compaction for granular materials in base course construction shall be 100%
Standard Proctor Density.
Compaction for all asphalt materials shall be 97% Marshall Density.
v) Road Cuts
The edges of all paved and concrete surfaces to remain must be properly saw cut
prior to removal.
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Municipality of Bayham
Design and Construction Standards 2018
1.5 Design and Construction (cont'd)
c) Subdrains
Two 150mm dia. pipe sub-drains with a minimum 3 meter length shall be installed
opposite to each other (parallel to the curb and gutter), for all catch basins installed.
Pipe sub-drain shall be perforated corrugated polyethylene tubing with knit filter sock
conforming to the requirements of OPSS 1840/1860 or perforated CSP (OPSS 1801)
and installed in accordance with OPSD-216.03. Bedding and backfill material shall be
coarse sand or approved granular material conforming to the requirements of OPSS
405. All sub-drains to have an approved geotextile around them together with an
approved end cap.
d) Engineered Fill
Following the removal of the topsoil and any fill material, the subgrade should be
thoroughly proof-rolled and inspected by a geotechnical engineer. Any loose or soft
zones noted in the inspection should be sub-excavated and replaced with approved
inorganic fill.
Grades can then be restored with compacted fill material. Any required fill material
should be inspected and approved by a geotechnical engineer and should be placed in
accordance with the soil engineering recommendations.
e) Curb and Gutter
i) Typical concrete barrier curb with standard gutter will be as per OPSD 600.040.
ii) Typical concrete semi-mountable curb with standard gutter will be as per OPSD
600.060.
iii) Typical concrete curb will be as per OPSS 353 - Construction Specifications for
Concrete Curb and Gutter Systems. All local and minor local streets will have
concrete semi-mountable curb with standard gutter and all other streets will have
concrete barrier curb with standard gutter unless otherwise approved by the
Municipality.
iv) Concrete shall be 30 MPa at 28 days with 7% ± 1.5% entrained air.
v) Contraction joints shall be provided every 3.0 m.
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Municipality of Bayham
Design and Construction Standards 2018
1.5 Design and Construction (cont'd)
vi) Expansion joints shall be provided at both sides of catch basins at the beginning and
end of circular curves, at any abutting sidewalk, setbacks, gutter inlets, or any
structure.
f) Radii of Curvature
The radii of curvature of the curbs and gutters at the intersections shall be as follows:
i) General
Arterial streets to: Arterial streets 12.0m R
Collector streets 12.0m R
Local streets 12.0m R
Collector streets to: Arterial streets 10.5m R
Collector streets 9.0m R
Local streets 9.0m R
Local streets to: Arterial streets 7.5m R
Collector streets 7.5m R
Local streets 7.5m R
ii) Truck Routes
Collector streets to: Collector streets 15.0m R
Note: a 3.0m daylighting triangle is required at the intersections itemized in ii)
above.
Arterial streets to: Arterial streets 15.0m R
Collector streets 15.0m R
Local streets 15.0m R
Note: a 6.0m daylighting triangle is required at the intersections itemized above.
iii) Cul-de-sac
The minimum required radii of curvature of curb and gutters for a residential and
industrial cul-de-sac are as per MSD 4 and
MSD 5.
g) Sidewalks
i) Typical sidewalks shall be as per OPSD 310.010, 310.020, and 310.030. See MSD
1A, MSD 2, MSD 6 and MSD 7.
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Municipality of Bayham
Design and Construction Standards 2018
1.5 Design and Construction (cont'd)
g) Sidewalks (cont'd)
ii) Typical concrete sidewalk will be as per OPSS 351 Construction Specification for
Concrete Sidewalk.
iii) Sidewalks shall be provided as follows:
- Sidewalks are required on one side for local roads.
- Sidewalks are required on both sides for collector and arterial roads.
- Sidewalks may be required on:
a) one side of a minor - local road;
b) both sides of a local street if the street forms a walkway to a park, shopping
area or schools.
-Sidewalks may be required on one or both sides of cul-de-sacs. This will
be reviewed on a case-by-case basis.
-Sidewalks and fencing are required on all walkways as per MSD 9.
iv) Sidewalks shall be minimum of 1.5 m wide and shall be located as shown in and
MSD 6 and MSD 7.
v) Sidewalks and curbs shall be ramped at street intersections to permit easy passage
of wheelchairs, etc. Ramps shall conform to OPSD 310.030.
vi) Concrete shall be 30 MPa at 28 days with 7% ± 1.5% entrained air and not less than
355 Kg/m3 of cement. Maximum slump shall be 70 mm.
vii) Sidewalks are to be a minimum thickness of 100 mm.
viii) Concrete sidewalks in walkways shall be 125 mm thick.
ix) Driveways to industrial, commercial or multi-family properties shall be 150 mm thick.
x) All sidewalks to be constructed on a 100 mm minimum thick Granular ‘A’ bed.
xi) Expansion joints shall be provided every 6.0 m. Where the sidewalk abuts a rigid
object, construction joints shall be provided every 1.5 m.
xii) Sidewalks shall have a 2% minimum and normal slope towards the road. Gradient in
excess of 4% is subject to approval by the Municipality.
Xiii) Sidewalks shall have tactile pad plates at all intersections, elevation changes
(steps). Pads shall confirm to OPSD 310.033 & 310.039. Pad shall cover the entire
width of the sidewalk.
h) Driveways
Driveways shall be as per MSD 10.
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Municipality of Bayham
Design and Construction Standards 2018
1.6 Street Lighting
a) General
All subdivisions shall be provided with street lights in accordance with the standards in
this section.
Proposed lighting layout, specifications, and details are subject to approval of the
Municipality and the local hydro utility provider. For Subdivisions abutting collector or
arterial roads, special lighting requirements and/or a photometric report may be required
to evaluate the intensity of light. The Subdivider's Engineer shall review lighting
requirements with the Municipality prior to final design.
Underground wiring shall be used for the electrical distribution system.
b) Design
i) Street Lights shall be located in accordance with the Utility Location Drawing MSD
1A, MSD 2 and MSD 3.
ii) All lighting systems shall meet the requirements of the current edition of the "Guide
for the Design of Roadway Lighting" as published by the Roads and Transportation
Association of Canada.
iii) On streets with sidewalks on one side, light poles are to be located on the same side
of the street as the sidewalk.
c) Installation
The installation of the electrical wiring, poles, lights and connections will be carried out
by a Municipality approved Contractor and the cost of the materials and installation shall
be borne by the Developer.
1.7 Signing and Markings
a) General
All new subdivision roadways or subdivision boundary roadways may require regulatory
or warning signs or pavement markings and will require street name signs at various
locations. All plans for signing shall be submitted for approval to the Municipality's Road
Superintendent.
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Municipality of Bayham
Design and Construction Standards 2018
1.7 Signing and Markings (cont'd)
b) Design
i) All regulatory signs shall be supplied and installed in accordance with the current
edition (March, 2001) of the Ontario Traffic Manual - Book 5.
ii) All warning signs shall be supplied and installed in accordance with the current
edition (July, 2001) of the Ontario Traffic Manual - Book 6.
iii) All pavement markings shall be supplied and placed in accordance with the current
edition (March 2000) of the Ontario Traffic Manual - Book 11.
iv) Street name signs are to be placed at every intersection and are to have double
name plates. These signs are to be placed off the street lines in a location that will
make the sign easily visible, to be approved by the Municipality's Road
Superintendent.
c) Materials
i) Regulatory and warning signs will be of the size and materials as outlined in the
current editions of the Ontario Traffic Manual - Books 5 and 6.
ii) Pavement markings shall be applied using durable products such as thermoplastics,
two-component cold-reacted materials or tapes as outlined in the current edition of
the Ontario Traffic Manual - Book 11.
iii) In rural areas, road name signs shall be 14 gauge steel minimum with white
enameled 100mm letters on a 200mm high plate on a blue background. In urban
areas, street name signs shall be of 14 gauge steel minimum with white enameled
100mm letters on a 150mm high plate on a blue background. These plates are to be
secured and mounted on 50mm diameter galvanized steel post, 3.5m long, driven
1.0m into the ground, or alternatively held in position by concrete placed at the
bottom of the post.
d) Installation
All signing shall be installed in accordance with the requirements of the most current
editions of the Ontario Traffic Manual and as approved by the Municipality's Road
Department.
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Municipality of Bayham
Design and Construction Standards 2018
SECTION 2 - STORM DRAINAGE
2.1 Storm Sewers
2.1.1 General
Storm sewers shall be designed in accordance with the design principles as outlined in
the most current edition of the Ministry of the Environment & Climate Change Guidelines
for the Design of Storm Sewers. Design computation sheets shall be submitted to the
Municipality's Engineer for approval.
The basic design factors requiring evaluation are land use, design frequency,
precipitation and runoff coefficient. The storm sewers shall be designed for a period of
not less than 50 years and shall be designed to convey the 5-year minor storm event
(unless otherwise required) to a sufficient outlet or to a storm water management facility
which will control post-development peak flows to pre-development flows including the 2,
5, 25, 50 and 100-year storm events.
The design of storm sewers shall be completed using the attached Rainfall Intensity Duration
Curve, Drawing MSD-16. Alternatively, the intensities may be calculated using the following
formula for the Intensity-Duration-Frequency relationship and corresponding constants:
i = a
(t+b)÷c
2 year 5 year 10 year 100 year
a 747.96 1007.05 1181.90 1660.60
b 7.382 7.382 7.382 6.875
c 0.8048 0.8040 0.8041 0.7978
In addition, runoff from major storm events (i.e. 100-year and Regional Storms) shall be
accommodated by an overland flow route that has been designed assuming that all of
the source controls and storm water conveyance controls have failed.
2.1.2 Estimated Quantity of Storm Runoff
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Municipality of Bayham
Design and Construction Standards 2018
The Rational Formula is to be used to determine the quantity of storm water runoff. The
use of other empirical runoff formulae must be approved by the Municipality's Engineer.
The Rational Formula is:
Q = 2.78 C i A
in which Q is the storm water runoff in liters per second (l/s), C is the runoff coefficient, i
is the average rainfall intensity in mm per hour, and A is the drainage area tributary to
the point under design in hectares.
In order to determine the intensity of rainfall for use in the Rational Formula, the time of
concentrations shall be calculated using an approved method such as:
- The Airport Formula
- The Bransby Williams Formula
In the absence of calculations a Time of Concentration of 10 minutes shall be assumed.
The use of inlet times other than those indicated above, shall be subject to the approval
of the Municipality's Engineer.
The following runoff coefficients are to be used with the Rational Formula:
Runoff Coeffiecients
Sources Coefficient
(C)
Asphalt, concrete, roof areas 0.90-1.00
Grassed Areas, parkland 0.15-0.35
Commercial 0.75-0.85
Industrial 0.65-0.75
Residential:
Single Family 0.40-0.45
Semi-detached 0.45-0.60
Row housing, Townhouses 0.50-0.70
Apartments 0.60-0.75
Institutional 0.40-0.75
In general, infiltration of ground water can be ignored in storm sewer design
computations.
2.1.3 Location
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Municipality of Bayham
Design and Construction Standards 2018
Storm sewers shall be located in accordance with the Standard Utility Location Drawing
MSD 1A, MSD 2, and MSD 3.
2.1.4 Minimum Pipe Size
The minimum size of the storm sewer shall be 300mm diameter. The sewer gradient
shall be such that a minimum velocity of 0.9 m/s is attained with the maximum velocity
being:
$ 4.6 m/s for 300mm to 825mm diameter sewers
$ 6.0 m/s for 900mm diameter and larger storm sewers
2.1.5 Cover
Minimum depth of cover on storm sewers shall be 1.5m.
2.1.6 Hydraulic Calculations
Hydraulics - Gravity Sewers
The Mannings Formula shall be used to design gravity storm sewers.
The Manning Equation is expressed as:
V = 1 . r ⅔ .S½
n
where V is the velocity in metres per second
r is the hydraulic radius in metres
S is the slope of conduit
n is the roughness coefficient
‘n’ values for pipes flowing full shall be as follows:
0.013 - polyvinyl chloride (PVC) pipe
0.013 - concrete pipe 100 mm to 450 mm dia.
0.013 - all pipe larger than 450 mm dia.
2.1.7 Maintenance Hole Losses
Allowances for hydraulic losses in maintenance holes shall be as follows:
Straight through flow - 0.025 m
22½̊ change in direction of flow - 0.035m
45̊+ change in direction of flow - 0.050 m
90̊ change in direction of flow - 0.075 m
2.1.7 Maintenance Hole Losses (cont'd)
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Municipality of Bayham
Design and Construction Standards 2018
Although the above invert drops will be adequate for sewers flowing at velocities at the
low end of the acceptable range, the required drops should be calculated for high
velocity sewers.
If the lateral inflow is a significant portion of the total flow through the manhole, then
provision must be made for increased head loss. In such instances, a detailed hydraulic
analysis of the head losses shall be submitted to the Municipality's Engineer.
2.2 Stormwater Management
2.2.1 General
Storm sewer systems shall include storm water management facilities and/or measures
for both water quality and quantity in accordance with accepted practices as outlined in
the most current edition of the publication entitled "Storm water Management Planning
and Design Manual" prepared for the Ontario Ministry of the Environment & Climate
Change. Storm water storage requirements for quality control shall be in accordance
with Table 3.1 of the above noted Manual with the "Level of Protection" being
determined in consultation with the applicable Conservation Authority, the Department of
Fisheries (DFO) and the Municipality's Engineer.
The design of individual stormwater management (SWM) facilities shall apply a 3-hour
Chicago Rainfall Distribution using the Atmospheric Environmental Services (AES)
intensity chart, MSD-17. All storms provided (i.e. 2,5,10,25,50 and 100 year) shall be
evaluated for quantity control purposes.
2.2.2 Quantity and Quality of Storm Water
a) Land Use
The Municipality's Official Plan shall be used to forecast the ultimate probable land use
in any particular area. Consideration should be given to the effect of increased
urbanization. Planning and development on a watershed or a sub-watershed basis is
essential.
2.2.2 Quantity and Quality of Storm Water (cont'd)
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Municipality of Bayham
Design and Construction Standards 2018
b) General
In the absence of watershed/sub-watershed planning, the following principles must be
considered in determining water quantity and quality criteria:
• Post Development flows must be kept to Pre-Development flows for 2-year
through 100-year storm return period.
$ Water Quality control is to be done to the requirements of the M.O.E.C.C. stormwater
management manual and the classification of the downstream receiving body.
$ Overland flows from storm events greater than a 5 year event must be addressed
and conveyed to a sufficient outlet.
The use of computer software programs to determine and evaluate the storm water
management facilities, runoff generated, etc. is acceptable provided the program is
approved by the Municipality's Engineer. All design parameters and output are to be
provided to the Municipality's Engineer by hard copy and on computer disc in a format
acceptable to the Municipality's Engineer. In addition, a Certificate of Approval is
required from the Ministry of the Environment & Climate Change prior to construction
being undertaken.
2.3 Open Channels and Culverts
a) The use of open channels shall not be permitted in residential or urbanized areas,
however, open channels may be permitted, if approved by the Municipality, in industrial
or rural areas.
b) Design of open channels and culverts shall be completed using the attached Rainfall
Intensity Duration Curve, Drawing MSD-16.
Alternatively, the intensities may be calculated using the following formula for the
Intensity-Duration-Frequency relationship and corresponding constants.
i = a See Section 2.1.1 for a, b and c values.
(t+b)÷c
2.3 Open Channels and Culverts (cont'd)
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Municipality of Bayham
Design and Construction Standards 2018
The appropriate Design Storm shall be approved by the Municipality’s Engineer.
c) Thorough soils investigations and interpretations shall be a prerequisite to the detailed
design of the open channel.
d) The Manning Formula shall be used in the design of open channels:
i) For grass-lined channels, ‘n’ values shall be based on the product of the velocity (V)
and the hydraulic radius (r):
V x r n
<0.5 0.150
0.5 to 1.0 0.120
1.0 to 2.0 0.070
2.0 to 5.0 0.050
5.0 to 10.0 0.035
>10.0 0.030
ii) Side slopes for grass-lined channels shall not be steeper than 3H:IV.
iii) Flow velocities shall be in the following ranges:
- sand, sandy loam, or silty loam
0.75 m/s to 0.90 m/s
- gravel, or clay material
0.75 m/s to 1.50 m/s
e) Full details of open channel design including energy dissipation structures shall be
submitted to the Municipality's Engineer.
f) To carry open channel drainage under driveways and across intersections, an
appropriate sized culvert shall be used with the minimum size being 375mm in diameter.
It may be necessary to increase the culvert size to accommodate higher flows from
upstream tributary areas.
g) Culverts shall be 2.8mm thick minimum galvanized corrugated steel pipe or H.D.P.E.
320Kpa Bell and Spigot pipe. This material shall conform to the requirements of CSA
Standard CAN 3- G401-M81 - Corrugated Steel Pipe Products.
2.4 Pipe Materials
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Municipality of Bayham
Design and Construction Standards 2018
Pipe material shall be concrete, polyvinyl chloride (PVC), or high density polyethylene
(HDPE).
Pipe sub-drains to be corrugated steel pipe or polyvinyl chloride (PVC) pipe.
i) Concrete Pipe
shall conform to CSA and ASTM Standards manufactured in accordance with the
following specifications:
a) Non-Reinforced to CAN/CSA A257.1 (100mm - 600mm dia.)
b) Reinforced to CAN/CSA 257.2 (300mm and larger)
ii) Polyvinyl Chloride (PVC) Pipe - smooth wall (100mm - 600mm inclusive)
shall be certified to CSA B182.1 and CSA B182.2 and conform to ASTM D3034.
Pipe sizes 200 mm diameter and larger shall be SDR 35, and less than 200 mm
diameter shall be SDR 28 for private drain connections (PDC).
iii) Ribbed Polyvinyl Chloride (PVC) Pipe (200mm - 600mm inclusive)
shall be certified to CSA B182.4 and meet the requirements of ASTM F794.
iv) High Density Polyethylene (HDPE) Pipe (200mm-600mm inclusive),
for use on storm sewers only, with integral bell and spigot, shall be certified to CSA
B182.6.
2.4.1 Pipe Joints
i) Concrete Pipe
All joints shall be rubber gasket conforming to CSA A257.3 and ASTM C443M-94.
ii) PVC Pipe
Sealing gaskets shall meet the requirements of CSA B182.2 and ASTM F477.
All PVC fabricated and moulded fittings shall be CSA certified.
iii) HDPE Pipe
All HDPE fabricated pipe and moulded fittings shall be CSA certified.
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Municipality of Bayham
Design and Construction Standards 2018
2.5 Maintenance Holes
a) Maintenance Holes shall be located at the junctions of sewers and at changes in grade,
alignment or diameter. Maintenance Holes shall be precast concrete conforming to
OPSD - 701.010 to 701.080.
b) Manhole frames and grates to be in accordance with OPSD 401.010 (Type A).
c) The precast concrete adjustment units used to extend maintenance holes and catch
basins shall be in accordance with OPSD 704.010 and OPSS 408. Three courses,
minimum, of approved adjustment units are required on precast maintenance holes.
The outside and interior faces of all concrete rings should be plastered and trowelled
smooth with mortar 6mm thick, consisting of one part masonry cement and 3 parts sand.
d) Maintenance hole steps shall be circular or rectangular aluminum and shall be in
accordance with OPSD 405.010 or OPSD 405.020. Steps to be at 300mm centres
vertically with 450mm maximum distance from top of maintenance hole to the first step.
e) Aluminum safety landings shall be provided in maintenance holes deeper than 5.0 m
from the top of maintenance hole cover to the lowest invert. Details shall be in
accordance with OPSD 404.020.
f) All precast maintenance hole section joints shall contain an approved rubber gasket or
approved equal. Joints, lifting holes and pipe connections are to be filled with a non-
shrink mortar mix.
g) Drop structures are required at maintenance holes where the difference in invert
elevations is greater than 900mm for storm sewers and shall be in accordance with
OPSD 1003.010 or OPSD 1003.020. Internal drop structures are an acceptable
alternative, when connecting to existing manholes and shall be according to OPSD
1003.030 and 1003.031.
h) Benching of manholes is to be performed in accordance with OPSD 701.021.
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Municipality of Bayham
Design and Construction Standards 2018
2.5 Maintenance Holes (cont'd)
i) A flexible joint shall be provided on all pipes, within 0.3 m of the outside wall of the
maintenance hole. Concrete bedding 20 MPa to solid ground and extending to the first
pipe joint may be used as an alternate approach.
j) All maintenance holes installed must be a “boot type” KOR-N-SEAL style, or an
approved equal.
k) Maintenance hole spacing shall be as follows:
Pipe Size Maximum Maintenance Hole Spacing
Up to 450 mm 120 m
525 mm to 750 mm 150 m
over 750 mm 180 m
l) Precast Maintenance hole tees may be used in storm sewers 1200 mm in diameter and
over. The precast riser sections shall be at least 1200 mm in diameter. Maintenance
hole tees shall be bedded on 28 MPa concrete. Full details shall be submitted to the
Municipality's Engineer for approval.
2.6 Catch Basins
a) Catch basins shall conform to OPSD 705.010, 705.020, 705.030 and 705.040.
b) Catch basin leads shall not be less than 250 mm in diameter and shall connect to the
storm sewer as shown in OPSD 708.01 or OPSD 708.03.
c) Catch basin frames and grates shall conform to the details in OPSD 400.020 and must
meet ASTM Designation A-48. Catch basin frames with curb inlet overflow, OPSD
400.090, shall be used for arterial roads and at all low points in the road. Ditch inlet
catch basin grate shall conform to OPSD 403.010. Curb inlet catch basin to be in
accordance with MSD-19.
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Municipality of Bayham
Design and Construction Standards 2018
2.6 Catch Basins (cont'd)
d) Curb inlet catch basins shall be provided at all low points in the road with single inlet
catch basins at intersections. Additional catch basins shall also be provided as follows:
Road Gradient (%) Maximum Spacing
0.5 to 3.0 90 m
3.1 to 4.5 75 m
greater than 4.6 60 m
e) The precast concrete adjustments units used to extend maintenance hole and catch
basins shall meet the OPSD 704.010 and OPSS 407. Three courses, minimum, of
approved adjustment units are required on precast maintenance holes. The outside and
interior faces of all concrete rings shall be plastered and trowelled smooth with mortar
6mm thick, consisting of 1 part masonry cement and 3 parts sand.
f) All joints, lifting holes, and pipe connections are to be filled with a non-shrink mortar mix.
2.7 Installation
a) Sewer pipe bedding shall conform to the Municipality's bedding standards for gravity and
pressure pipe and shall be in accordance with MSD 11 and MSD 12.
b) Approved excavated material may be used for backfill under roads, sidewalks and
driveways where an independent soils investigation, carried out by a Geotechnical
Engineer, indicates that this is practical. Compacting of the material shall be carried out
in accordance with the recommendations of the Geotechnical Engineer.
If the excavated material is unsuitable, the trench shall be backfilled with Granular 'B'
material conforming to OPSS 1010 and compacted to 95 percent Standard Proctor
Density.
c) Sewer service connections for rigid main pipe sewer shall be in accordance with OPSD
1006.010 and for flexible main pipe sewer shall be in accordance with OPSD 1006.020.
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Municipality of Bayham
Design and Construction Standards 2018
2.7 Installation (cont'd)
A 50mm x 100mm timber marker stake shall be installed at the end of the private service
connection from the invert to 300mm above finished ground. The stake shall be painted
brown.
d) All installations shall be subject to the inspection, approval and acceptance of the
Municipality.
e) If any utilities or services are encountered during construction they are to be supported
in accordance with the requirements of the various utility companies as applicable.
f) Road surfaces shall be restored to its original condition where existing roads are
disturbed, all to the satisfaction of the Municipality.
g) All new sewers shall be inspected by means of a closed circuit television inspection in
accordance with OPSS 409 and one copy of the video given to the Municipality for its
records. This work shall be performed by an independent inspection company under the
supervision of the Municipality and paid for by the Contractor.
h) Ring deflection testing shall be performed on all new pipe sewers constructed using
plastic pipe in accordance with OPSS 410.07.15.05. Testing is to take place no sooner
than 30 days after the completion of backfilling and installation of service connections
and again just prior to the end of warranty.
2.8 Private Drain Connections
Refer to Section 5.1.
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Municipality of Bayham
Design and Construction Standards 2018
SECTION 3 - SANITARY SEWERS
3.1 General
All subdivisions shall be serviced with sanitary sewers connected to the municipal
sanitary sewer system. Consideration will be given on an individual case by case basis
for small residential developments where no municipal sanitary sewer system exists
(less than 5 lots by severance). All plans of such works shall be approved by the
Municipality's Engineer.
3.2 Design
a) Sanitary sewers shall be located in accordance with the Standard Utility Location
Drawing MSD 1A, MSD 2 and MSD 3.
b) Sanitary sewers shall be designed in accordance with the design principles
recommended in the most current edition of the Ministry of the Environment & Climate
Change Guidelines for the Design of Sanitary Sewers. Design computation sheets are
to be submitted to the Ministry for approval and shall be in accordance with the design
criteria as outlined in Section 3.3 - Sanitary Sewage Flows.
c) The minimum size of sanitary sewer shall be 200 mm in diameter.
d) Sewer Gradients shall be such that the minimum velocity is 0.6 m/s and the maximum
velocity is 3.0 m/s. At the upstream sections of a 200 mm diameter sanitary sewer the
slope shall be governed by the number of dwelling units connected:
1 to 5 units S = 0.70%
6 to 8 units S = 0.60%
9 to 12 units S = 0.50%
13 or more units S = 0.40%
The minimum slope for a 200 mm diameter sanitary sewer shall be 0.40%.
The minimum slope for a 250mm diameter sanitary sewer shall be 0.28%.
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Municipality of Bayham
Design and Construction Standards 2018
3.2 Design (cont'd)
e) The minimum depth of cover over the crown of the pipe in residential areas shall be:
Basement Drainage required 2.75 m
f) The Mannings formula shall be used to design gravity sanitary sewers, as shown in
Section 2.3.
g) Allowances for hydraulic losses in manholes shall be as shown in Section 2.3.
h) Hydraulics - Forcemains
i) The Hazen-Williams Formula shall be used to design forcemains for peak sanitary
sewage flows and is expressed as:
V = 0.849 C r.63s.54
where V is the velocity in metres per second
C is the roughness coefficient = 120
r is the hydraulic radius in metres
s is the slope of the conduit
ii) Head losses in forcemains shall be computed and submitted to the Municipality for
approval. Allowances shall be included for hydraulic losses due to valves, bends and
other miscellaneous fittings.
3.3 Sanitary Sewage Flows
Sanitary sewage flows shall be based on the following:
a) Tributary population densities in accordance with the recommendations of the Official
Plan and Zoning Bylaw.
b) Daily per capita sewage flows of 365 litres (excluding infiltration allowance) shall be used
to compute sewage flows for residential.
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Municipality of Bayham
Design and Construction Standards 2018
3.3 Sanitary Sewage Flows (cont'd)
c) Sewage flow allowances for industrial and commercial development shall not be less
than 22,500 litres per gross hectare per day. Industry shall be required to provide the
Municipality with their estimated average and peak daily flow rates.
d) i) Peak residential sewage flows shall be based on the “Harmon Formula”.
M = 14 + 1 0.5
4 +( p)
where P is the tributary population in thousands
M is the peaking factor.
ii) Peak industrial/commercial sewage flows shall be "Harmon" x 0.8
iii) A maximum peaking factor of 4 will overrule where applicable.
e) Infiltration allowance for all types of development shall be as follows:
$ 8640 litres per hectare per day or 0.100 litres per hectare per second
The infiltration allowance shall be approved by the Municipality's Engineer prior to design
of the sanitary sewer system.
3.4 Pipe Materials
Pipe material shall be concrete or polyvinyl chloride (PVC).
i) Concrete Pipe
shall conform to CSA and ASTM Standards manufactured in accordance with the
following specifications:
a) Non-Reinforced to CAN/CSA A257.1 (100mm - 600mm dia.)
b) Reinforced to CAN/CSA 257.2
ii) Polyvinyl Chloride (PVC) Pipe - smooth wall (100mm - 600mm inclusive)
shall be certified to CSA B182.1 and CSA B182.2 and conform to ASTM D3034.
Pipe sizes 200 mm diameter and larger shall be SDR 35, and less than 200 mm
diameter shall be SDR 28 for private drain connections (PDC).
iii) Ribbed Polyvinyl Chloride (PVC) Pipe (200mm - 600mm inclusive)
shall be certified to CSA B182.4 and meet the requirements of ASTM F794.
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Municipality of Bayham
Design and Construction Standards 2018
3.4.1 Pipe Joints
i) Concrete Pipe
All joints shall be rubber gasket conforming to CSA A257.3 and ASTM C443M-94.
ii) PVC Pipe
Sealing gaskets shall meet the requirements of CSA B182.2 and ASTM F477.
All PVC fabricated and moulded fittings shall be CSA certified.
3.5 Maintenance Holes
a) Refer to Section 2.6 regarding maintenance hole specifications.
b) The maximum spacing between sanitary manholes is 120m.
c) Drop structures are required at sanitary maintenance holes where the difference in invert
elevations is greater than 600mm. Refer to Section 2.6 regarding OPSD references.
3.6 Private Drain Connections
Refer to Section 5.1.
3.7 Installation
a) The installation of sanitary sewers shall be carried out in accordance with the
requirements of Section 2.8.
b) The test pressure for forcemains shall be 700 kPa and may be measured at any point on
the forcemains by applying an appropriate connection. The test pressure shall be
maintained for at least one hour. The maximum permissible leakage shall not exceed
4.45 litres per mm diameter of pipe per kilometre length of pipe per day.
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Municipality of Bayham
Design and Construction Standards 2018
SECTION 4 - WATERMAINS
4.1 General
All water distribution systems including watermains, services, private watermains and
appurtenances shall be designed and installed to the following:
• Municipality of Bayham Standards
• Reg. 435/93, 170/03 and any other regulations under the Safe Drinking
Water Act and the Ontario Water Resources Act.
4.2 Design of Watermain
The water requirements in the design of the distribution system are to be based on the
following three basic needs:
(a) Domestic Uses
(b) Fire Protection
(c) Industrial Uses
Minimum Sizes
The minimum watermain size to be used in the design of watermain systems is 150mm
in diameter. A hydrant lateral is to be 150mm in diameter.
4.2.1 Pressure Requirements
Water supply systems should be designed to satisfy the greater of either of the following
demands:
(a) Maximum day plus fire flow at a minimum pressure of not less than
140kPa (20psi) at a fire hydrant connection.
(b) Maximum hourly demand at a pressure not less that 275kPa (40psi) in
residential areas and not less than 310kPa (45psi) in industrial areas.
4.2.2 Demands
a) Domestic Demand (Population Range 500-1000)
( i) Per capita consumption - 350 litres per capita per day
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Municipality of Bayham
Design and Construction Standards 2018
4.2.2 Demands (cont’d)
( ii) Maximum Daily Demand Factor - 3.0
(iii) Peak Hourly Demand Factor - 4.1
b) Fire Demand
The level of fire protection to be provided will require the approval of the Municipality’s
Engineer and the Municipality’s Fire Chief. In general, the minimum fire flow, as
recognized by various fire underwriting groups is 30 litres/sec and to receive credit, the
water system must be simultaneously capable of satisfying the maximum day demand.
To estimate the fire flow requirements for a particular structure or area of a municipality,
the designer should refer to a guide such as, “Water Supply for Public Fire Protection - A
Guide to Recommended Practice”, (latest revision) prepared by Fire Underwriters
Survey Insurers’ Advisory Organization, 180 Dundas Street West, Toronto, Ontario M5G
1Z9. For further fire related requirements refer to Ontario Building Code and the Ontario
Fire Code.
c) Industrial Demand
Industrial water consumption varies considerably and is dependent on the type of
industry. If the development under consideration is known, the actual water
requirements should be determined prior to the design of the water system.
4.2.3 Hydraulics
The Hazen-Williams Formula is to be used in the design of water distribution systems.
The following values of C (pipe roughness constant) are to be used in the Hazen-
Williams equation regardless of material.
C-Factor Diameter (mm)
100 100 - 150
110 200 - 250
120 300 - 600
130 Greater than 600
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Municipality of Bayham
Design and Construction Standards 2018
4.2.3 Hydraulics (cont’d)
The Hiram-Mills Formula is to be used in the design of large diameter pipes.
If required by the Municipality's Engineer, an analysis of flow in the pipe network by an
approved modelling software shall be submitted.
4.2.4 Materials
a) Materials
i) Ductile Iron Pipe
The use of ductile iron pipe is not acceptable to the Municipality.
ii) Asbestos Cement Pipe
The use of Asbestos Cement Pipe is not acceptable to the Municipality.
iii) High Density Polyethylene Pipe (HDPE)
The use of HDPE pipe is only acceptable to the Municipality within
proposed directional drilling sections of watermain. See Section 4.12.
iv) Polyvinyl Chloride (PVC) Pipe
The Polyvinyl Chloride (PVC) plastic pipe shall be constructed of rigid
polyvinyl chloride compound and shall conform to the current AWWA C-
900 or CSA B-137.3 specifications. Polyvinyl chloride plastic pipe shall
be Class 150 (SDR 18) for sizes up to and including 300mm diameter.
For watermains larger than 300mm diameter the type of watermain shall
be determined in consultation with the Municipality's Engineer.
Pipes shall be supplied in standard lengths of not less than 6
meters nor more than 11.6 meters except that short lengths and special
adaptors shall be provided as required for completing connections or
where ground conditions are such that shorter lengths are necessary.
Pipes shall be jointed by means of a "Tyton" type rubber ring bell joint
which shall be an integral and homogeneous part of the pipe barrel.
Rubber rings shall conform to ASTM Specifications D1869. The class
and type of pipe shall be stencilled on each length of pipe.
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Municipality of Bayham
Design and Construction Standards 2018
4.2.4 Materials (cont’d)
Joints shall be bell and spigot with rubber gaskets. The spigot shall be
lubricated. A solid 12 gauge TWN copper wire must be supplied along
the full length of the pipe to provide electrical continuity for location
purposes.
v) Fittings
PVC Pipe
Fittings shall be cast iron with mechanical joint or push-on ends adapted
for use in making connection with PVC pipe and in accordance with
AWWA C110.
b) Watermain Valves
All watermain valves shall be gate valves or butterfly valves.
Gate valves shall be iron body, bronze-mounted, non-rising stem with mechanical joints.
Gates may be double disc parallel seal or solid wedge. Valves shall be manufactured in
accordance with AWWA Standard C500/C509 or other approved specification. Minimum
design working water pressure shall be 1.21 MPa (175 psi). "O" rings shall be used for
valve stem stuffing box packing.
Butterfly valves shall be iron body rubber seated with mechanical joints. Valve vane
shall be cast iron with stainless steel shaft. Valves shall be manufactured in accordance
with AWWA Standard C504 Class 150B. "O" rings shall be used for valve stem stuffing
box packing.
Valves to open to the LEFT i.e. counter-clockwise and stems fitted with 50mm square
operating nut with arrow showing opening direction.
A 10.9kg zinc anode shall be connected to all watermain valves.
c) Valve Chambers
A cast iron valve chamber or valve box shall be supplied and installed on every
watermain valve and hydrant shut-off valve. Box shall have a minimum internal diameter
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Municipality of Bayham
Design and Construction Standards 2018
4.2.4 Materials (cont’d)
of 125mm and be adjustable for total length. Box to have attachable base of sufficient
size to prevent box bearing on the valve. Cover to be marked WATER. Valve boxes
may be the No. 5 Slide Type Valve Box or the No. 5 Screw Type W\No. 6 base as
manufactured by EMCO or approved equal.
d) Fire Hydrants
Fire hydrants shall be manufactured in accordance with AWWA Standard C502.
Hydrants shall be post type with compression valve control designed for a working
pressure of 1.03 MPa (150 psi) and to close with water pressure. Hydrants shall be
suitable for a minimum 1830mm trench and shall be supplied with two Standard 64mm
hose nozzles and a 100mm pumper nozzle (Storz) with caps. Nozzle threads shall be
Ontario Provincial Standards threads. Barrel to have ground line flange and designed so
that all internal parts can be removed through the top of hydrant. Hydrant barrel to drain
automatically when hydrant is closed. Base connection shall be 150mm. Hydrant must
be open LEFT ie. counter clockwise. Hydrants shall be installed 600mm within the road
right-of-way. Flange at base of hydrant shall be at 100mm above finished grade.
Hydrants shall be shop painted YELLOW epoxy all over. All field painting shall be
carried out in accordance with the AWWA Standards for fire-hydrant designations as
indicated in the Hydrant Paint Code.
Hydrants are to be Clow M67 Brigadier, non-draining, and with a storz connection. The
storz cap is to be black in colour with the top bonnet and body of the hydrant yellow in
colour.
Hydrant installation shall include mechanical joint restraint and 10.9kg zinc anodes
connected to both gate valve and hydrant barrel. Refer to OPSD-1105.010 for hydrant
installation.
Service access to be provided to fire hydrant consisting of 3.0m wide lane of 300mm
Granular 'B' and 150mm Granular 'A'. Should the access cross a ditch, a culvert shall be
installed to sufficient length with minimum 375mm diameter corrugated steel pipe (c.s.p.)
as per OPSD 217.05
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Municipality of Bayham
Design and Construction Standards 2018
4.2.4 Materials (cont’d)
e) Service Pipe
Copper - Type 'K' copper tube of not less than 20mm nominal size in conformance with
A.S.T.M. B88. No solder joints permitted. Stainless steel appurtenances. Bedding to
be Granular 'B' Type 1 (clean sand/conforming to OPSS-1010. Include 5.4 kg zinc
anode clamped to service.
Polyethylene Plastic - of not less than 25mm (CTS) nominal size in conformance with
ASTM F1282 or CSA B137.1 with a working pressure of 1.10 MPa (160 psi). Where
houses are located further than 30m from the main, the size of the water service shall be
approved by the Municipality.
f) Service Main Stop
Main stop for copper tube shall be brass stop with inlet AWWA thread. Outlet copper
flange with two piece nut and tail shall be Ford F600.
Main stop for plastic tube shall be brass with inlet AWWA thread. Outlet plastic tube
compression. 25mm shall have stainless steel insert. Main stop to be Ford F1002 for
25mm. Main stop shall open LEFT ie. counter clockwise.
g) Service Curb Stop
Curb stop for 20mm to 50 mm copper tube shall be bronze inverted ground plug type
with inlet and outlet copper flange with two piece nut and tail and shall be Ford B21-333.
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Municipality of Bayham
Design and Construction Standards 2018
4.2.4 Materials (cont’d)
Curb stop and drain for 25mm plastic tube shall be bronze inverted ground plug type
with inlet and outlet plastic tube compression with stainless steel insert and shall be Ford
B41-333.
The curb stop shall be located 300mm from the street line on the Municipality side.
MSD-15 shows the orientation of the water service.
Curb stop for 38mm and 50mm plastic tube shall be bronze ball valve with inlet and
outlet plastic tube compression and shall be similar to Ford 38mm – B41-666-NL, 50mm
– B41-777-NL or approved equal.
Curb stop shall open LEFT ie. counter clockwise.
Curb stops shall include 5.4kg sacrificial zinc anodes to OPSS 702.
h) Service Curb Box
All curb stops shall have adjustable service boxes with rods of sufficient length to suit
bury of valve. Base shall be cast iron. Cover shall be cast iron with 19mm hexagon
brass plug. Service boxes for valves up to 25mm shall be similar to Mueller A726 or
approved equal. Services boxes for 38mm and 50mm valves shall be similar to Mueller
A728 or approved equal.
i) Service Saddle Clamps
Service saddles shall be full body stainless steel. Clamps shall be double strap broad
band stainless steel body and shall be Ford FS 300.
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Municipality of Bayham
Design and Construction Standards 2018
4.2.4 Materials (cont’d)
j) Sampling Station
Requirement and location of water sampling station(s) shall be determined by the
Municipality.
Sampling stations shall be constructed in accordance with the attached Drawing MSD-
19.
k) Watermain Valves
In developments of single family and semi-detached units, valves shall be distributed so
that any section of the watermain serving up to sixty (60) units can be isolated by
operating not more than (4) four valves. All valves shall be resilient, epoxy coated with
stainless steel nuts and bolts. All water valves are to have stem extensions made of 1”
square solid steel with the operating nut located 12’ below grade.
4.3 Installation
All trench excavation shall be carried out in conformance with the latest requirements of
the Occupational Health and Safety Act.
4.3.1 Installation of Pipe and Appurtenances
a) Pipe Deflection
Wherever it is necessary to deflect the pipe from a straight line either in the vertical or
horizontal plane, the amount of deflection shall not exceed that required for satisfactory
making up of the joint and shall not exceed that recommended by the manufacturer.
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Municipality of Bayham
Design and Construction Standards 2018
4.3.1 Installation of Pipe and Appurtenances (cont’d)
b) Pipe Joint
Mechanical joint and/or "Tyton" joint shall be used. The use of poured joint bell and
spigot pipe will not be permitted.
Only those methods approved by the manufacturer shall be used in the jointing of
mechanical or Tyton joint pipe. Substitution of accessories will not be permitted.
This shall apply to nuts, bolts, follower rings and rubber rings. Lubricants used shall be
vegetable soaps, approved by the Contract Administrator.
c) Anchorage for Plugs, Caps, Tees, Bends and Other Fittings
All fittings shall be anchored to prevent movement by providing mechanical joint
restraints. No concrete thrust blocks will be allowed without written permission from the
Municipality.
Metal hangers, tie rods, or clamps of adequate strength to prevent movement may be
used instead of concrete backing by written permission of the Contract Administrator.
d) Electrical Conductivity
It shall be the responsibility of the Contractor to use such materials and methods in
making joints as to ensure continuity of electrical conductivity in any IRON watermain
piping. Such materials and methods shall be in accordance with the manufacturer's
specifications and shall meet with the approval of the Contract Administrator.
4.3.2 Pipe Bedding
PVC watermain pipe shall be placed on a coarse sand bedding with a particle size not
greater than 20mm.
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Municipality of Bayham
Design and Construction Standards 2018
4.3.2 Pipe Bedding (cont’d)
Bedding shall extend to a minimum depth of 100mm below the pipe barrel and shall be
brought up around the pipe to a minimum depth of 300mm above the top of pipe and
shall be compacted to 98% modified Proctor Density. The width of coarse sand bedding
shall be the width of the trench.
4.3.3 Installation of Water Services
a) Layout
Watermains are to be located 4.7 meters on the street side of the street line and on the
opposite side of the storm sewer. Watermains are to have a minimum depth of cover of
1.7 meters.
b) Valve Placement
Shut off valves shall be placed as follows:
- At intersections (T Type) at least 2 valves
- At intersections at least 3 valves
- On straight runs at start of runs, at end of runs, at all road intersections, and not
greater than 1km apart.
c) Location of Service
Main cocks shall not be spaced closer than 450mm and shall be tapped at the 2:00
o'clock or 10:00 o'clock positon only, and left fully open by the Contractor. Service pipe
shall be at a depth of not less than 1700mm and not more than 2000mm below the final
grade.
Service connections passing under roadside ditches shall have a minimum of 1700mm
cover at all times and shall be installed at a depth of not less than 1850mm at the
property line.
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Municipality of Bayham
Design and Construction Standards 2018
4.3.3 Installation of Water Services (cont'd)
The curb stop shall be located 300mm from the street line on the Municipal side of the
line.
On "cul-de-sac" or similar type streets, where it may not be feasible to lay a water
service at right angles to the main, the service shall be laid in such a manner that the
curb stop and main stop are in a straight line.
d) Installation of Service
A "Goose Neck" shall be formed into the service pipe, "laid over" into a horizontal
position. Service pipe shall be continued to the curb stop, which shall be located 300mm
from the street line, and on the street side of the property line.
4.3.4 Dead End
Dead end sections of watermain shall be avoided wherever possible. The sections of
watermain shall be looped to provide flow from two directions where possible.
Subdivisions will not be allowed to exceed occupancy of 85 residences with only one
source of flow, prior to the system being looped.
All dead ends are to be equipped with a 50mm diameter blow-off. Blow-off must be
operable without necessity of excavating.
4.3.5 Directional Drilling Watermain
a) Pipe Material
Watermain pipe material shall be either H.D.P.E. or P.V.C. pipe. H.D.P.E. pipe shall be
in conformance with AWWA Standard C906-99 for PE Pressure Pipe and Fittings
100mm through 1575mm for Water Distribution and Transmission. PE pipe shall be
manufactured with resin conforming to Standard PE Code PE3406. PE pipe shall be
DRll Ductile Iron pipe size.
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Municipality of Bayham
Design and Construction Standards 2018
4.3.5 Directional Drilling Watermain (cont'd)
a) Pipe Material (cont'd)
The Polyvinyl Chloride (PVC) plastic pipe shall be constructed of rigid polyvinyl chloride
compound and shall conform to the current AWWA C900 or CSA B-137.3 specifications.
Polyvinyl chloride plastic pipe shall be Class 150 (DR 18).
Tracer wire shall be 12 gauge TWU multi-strand copper and shall be installed along all
watermains at the 12 o'clock position strapped to the pipe at 6 meter intervals. The
tracer wire shall be brought to the surface at all fire hydrants, looped twice around the
hydrant barrel 100mm below finished grade and fastened by means of washer to a
breakaway flange bolt.
PVC pipes shall be jointed by means of either "Royal Cobra Lock System" as
manufactured by Royal Pipe Systems, or "Terrabrute" as manufactured by IPEX Inc.
b) Construction
Directional boring of the PE or PVC watermain pipe shall be carried out under the
supervision of a Project Engineer or Superintendent with previous proven experience
who shall be in continuous charge of the directional boring operation.
Approved joints to the PVC watermain shall be provided at each end of the PE
watermain pipe.
c) Boring Water Service Pipe
In general, the installation of water services under existing roadways shall be performed
using trenchless techniques, i.e. boring methods. All required water service installation
not crossing under roadways shall be performed using open cut techniques.
In general the length of augering or boring shall extend a minimum of three (3) meters
beyond the edge of the travelled portion of the roadway on either side, or one (1) meter
beyond the edge of shoulder, whichever is greater, unless existing site conditions dictate
otherwise and approved by the Municipality Engineer.
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Municipality of Bayham
Design and Construction Standards 2018
4.4 Testing
4.4.1 Pressure Test and Allowable Leakage
All tests are to comply with all current provincial regulations and AWWA standards.
Contact municipality a minimum of 48 hours prior to testing.
4.4.2 Disinfection
All disinfection testing is to comply with all current provincial regulations, AWWA / AWSI,
OPSS standards. Contact municipality a minimum of 48 hours prior to testing.
4.4.3 Soil Testing
Soil samples shall be taken on each street to identify soil class and resistivity for pipe
design.
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Municipality of Bayham
Design and Construction Standards 2018
SECTION 5 - LOT SERVICING AND LOT GRADING
5.1 Lot Servicing
a) General
The servicing of all lots is to be in accordance with the standards set out in this section.
Before any work is to commence in the Municipality's right-of-way, approval must be
given by the Municipality's Engineer.
b) Sanitary Private Drain Connections
i) Pipe materials shall conform to Section 3.4.
ii) Each property will be provided with a private drain connection of a minimum diameter
of 125 mm having a minimum slope of 2%, as per MSD-18.
iii) Private drain connections to industrial, commercial or high density residential
properties shall not be less than 150 mm diameter with an inspection manhole
placed at the property line just onto private property.
iv) MSD 15 shows the orientation of the private drain connections.
v) Roof water leaders shall not be connected to the sanitary PDC. Connection of
foundation weeping tiles to the sanitary sewer is prohibited.
vi) The installation of private drain connections shall meet the standards set out in
Section 2.7.
c) Storm Private Drain Connections
i) Pipe materials shall conform to Section 3.5.
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Municipality of Bayham
Design and Construction Standards 2018
5.1 Lot Servicing (cont'd)
ii) Each property will be provided with a private drain connection of a minimum diameter
of 100 mm having a minimum slope of 2%, as per MSD-18.
iii) Private drain connections to industrial, commercial or high density residential
properties shall not be less than 150 mm diameter with an inspection manhole
placed at the property line just onto private property.
iv) MSD 15 shows the orientation of the private drain connections.
v) Roof water leaders shall not be directly connected to the storm sewers. Direct
connection of foundation weeping tiles, as well as perimeter foundation tiles and
sump pump discharge to the storm sewer is prohibited. Weeping tiles may be
connected to the Storm Sewer in accordance with the Storm Sewer use by-law or
pumped above the foundation elevation prior to connection into the storm PDC.
vi) The installation of the private drain connections shall meet the standards set out in
Section 2.7.
d) Water Services
Refer to Section 4 - Watermains, OPSD-1104.010 and OPSD-1104.020.
e) Utilities
i) All other utilities are to be installed in accordance with the standards of the utility
company.
ii) Refer to MSD 15 for the location of required services and utilities.
f) Driveways
i) All driveways shall meet the requirements shown in MSD 10.
ii) Driveways are to be designed and installed perpendicular to the roadway.
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Municipality of Bayham
Design and Construction Standards 2018
5.1 Lot Servicing (cont'd)
iii) No part of the driveway shall encroach upon the property boundaries when extended
from the edge of the right-of-way to the roadway.
iv) If a concrete driveway is installed, expansion joints are to be installed at the property
line, at both sides of the sidewalk and at the curb.
5.2 Lot Grading
a) General
All subdivisions shall be graded in accordance with these specifications and the details
shown on MSD 13. Lot grading plans shall be prepared by the developer and approved
by the Municipality along with the subdivision servicing drawings.
Existing elevations and grading details to be shown shall include sufficient area of
adjacent lands to define total drainage patterns.
b) Lot Grading Specifications
i) Yard surfaces shall have a minimum slope of 2% (in special cases 1% to be
approved by the Municipality's Engineer).
ii) Drainage flows shall be directed away from foundations.
iii) Drainage flows which are carried around houses are to be confined in defined swales
located as far from the houses as possible.
iv) The desirable sideyard swale depth is to be 225 mm. The minimum allowable depth
shall be 150 mm. The maximum swale depth is to be variable, but dependent on
location and safety considerations.
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Municipality of Bayham
Design and Construction Standards 2018
5.2 Lot Grading (cont'd)
v) The minimum major/rear yard swale depth is to be 300mm, located a minimum 1.5m
from rear property line with minimum 4H:IV slope.
vi) Grades:
a) Minor swales - provides drainage for up to four lots
- the minimum grade shall be 2% (special cases 1% to be approved by the
Municipality).
b) Major/rear yard swales - provide drainage for more than four lots
- the minimum grade shall be 1%.
vii) The maximum flow allowable in a side yard swale shall be that from four back yards.
viii) The maximum flow in a rear yard swale shall be that from 16 back yards, depending
on lot size and grade. The maximum length of a rear yard swale to a catch basin
shall be 80 m. The maximum area contributing to the rear yard swale shall be 1.0
ha. The maximum flow in a rear yard swale which is discharged directly onto the
road allowance, is that from six backyards.
ix) Where possible, it is preferred to have lots drain to the front of the property, rather
than to a rear yard catch basin.
x) Ground elevations at buildings shall be 300mm above any adjacent downstream
overland flow routes.
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Municipality of Bayham
Design and Construction Standards 2018
SECTION 6 - DRAWINGS
6.1 General
All contract drawings are to be on the Municipality's Standard drawing size which is
609mm x 914mm. The Municipality's Standard title block is to be used and placed in the
lower right hand corner of the sheet. All drawings are to be signed and sealed by a
Professional Engineer at the location provided in the title block. All drawings shall be
submitted in an electronic format, Autocad 2014 and a pdf version. Base drawings are to
be located in UTM17 North, NAD83.
.
6.2 Drawing Standards
All drawings must meet the following standards:
a) Existing conditions are to be drawn with a lighter pen than the proposed construction.
b) North shall be shown on all drawings to the top or to the right.
c) All elevations shall be to Geodetic Survey of Canada Datum.
d) The zero chainage shall start at the projection of an intersecting street’s center line.
Chainages shall be indicated at 25m stations. Where possible, the profile must be a
vertical projection of the plan. Calculated chainages of the beginning and ending of
horizontal or vertical curves must be noted on the plan and profile.
e) A legend shall be used to indicate services as shown in MSD 14.
f) All revisions to original drawings must be recorded in a revision block and dated.
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Municipality of Bayham
Design and Construction Standards 2018
6.3 Drawings to be Submitted
The following drawings are to be submitted when applicable. (3 complete sets.)
1) Cover Sheet
The cover sheet shall indicate the following:
a) A list of drawings included in the Contract Set.
b) A Key Plan showing the location of the proposed development (scale 1:10,000).
c) The project title and the name and address of the Owner and the Consulting
Engineer.
2) Master Plan - Services to be constructed
A drawing showing all services to be constructed using a scale of 1:1000.
3) Lot Grading Plans
The lot grading plan shall meet the following requirements:
a) Indicate north by an arrow on the plan.
b) Basic Plan:
- scale 1:250
- showing all existing and proposed lot numbers
- show all street names
- show all lot frontages and depths
- show all sidewalks to be constructed by the subdivider
- indicate all lots that are semi-detached (SD) or back split (BS)
c) Elevations that are to be shown on the Grading Plan include:
- all elevations are to be Geodetic
- final ground elevations at lot corners and house corners
- final centre line of road elevation every 25 m
- existing ground elevations are to be shown by means of spot elevations and
contours.
These contours shall extend a minimum of 25 m beyond the limit of the plan;
- for single lot applications, the difference between the building sill elevation and
the centre road elevation shall be shown. The rear lot difference to sill elevation
shall also be shown.
d) Drainage Information
-show the location and direction of flows of swales by means of arrows. At least one
arrow is to be shown at the rear of each lot;
- show all proposed rear lot catch basins, leads and easements.
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Municipality of Bayham
Design and Construction Standards 2018
6.3 Drawings to be Submitted (cont'd)
- show the location and direction of swales by means of waved arrows.
- show the location and direction of overland flow routes by means of bold arrows.
See Drawing MSD-14 for typical arrows.
4) General Plan - Sanitary Sewer System
A drawing showing the Sanitary Sewerage System and Areas to a scale of 1:1000,
including Sanitary Design Sheet.
5) General Plan - Storm Drainage System
A general plan to a scale of 1:1000 showing the Storm Drainage System and Drainage
Areas, including Storm Design Sheet.
6) General Plan - Water Distribution System
A drawing showing the existing and proposed water distribution system to a scale of
1:1000.
7) General Plan - Street Lighting
A general plan to a scale of 1:1000 showing the proposed street lighting layout.
8) Plan and Profile
A plan and profile drawing for each street in the subdivision and all rear yard catch
basins. These drawings shall include all pertinent information as deemed necessary by
the Municipality's Engineer. The location and brief description of soil investigations shall
be shown on the plan and profile drawings. (Boreholes)
Scale - Horizontal 1:250
Vertical 1:50
9) Typical Road Cross-Section
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Municipality of Bayham
Design and Construction Standards 2018
6.3 Drawings to be Sumbitted (cont’d)
10) Detailed Drawings
The detailed drawings shall include all details necessary for the proper construction of
the works. It will be the Developer’s responsibility to ensure that the Contractor is
provided with the miscellaneous details included in these Servicing Standards and other
various details for the completion of the project.
6.4 “As-Constructed" Drawings
On completion of the project, the drawings must be revised to show the services as they
were actually constructed. The completed works shall be on a CD and must be of a
quality acceptable to the Municipality's Engineer.
The Municipality shall be provided with one CD and two sets of prints of all the “as-
constructed” drawings used for the project.
The following details shall be shown on the Contract Drawings and shall be amended to
indicate the “as-constructed” locations of all services:
- street names
- registered plan numbers, lot numbers, and/or Municipal number, lot lines, street lines,
frontages, and easements;
- ties to property bars for all water services (0.30m accuracy);
- the chainage of private drain connections measured from the nearest downstream
manhole (0.30m accuracy);
- the location and elevation shown on the profile of all services encountered while
undertaking the work (0.30m location accuracy, 0.02m elevation accuracy);
- the location on plan of all services (0.50m accuracy);
- center line road profile (25m minimum intervals);
- the full details for all services i.e. sizes, grades, materials, elevations, etc.
- the digital as-constructed drawing should be geo-referenced shape files and include
all items such as water, sanitary sewer, storm sewer and roadwork
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Municipality of Bayham
Design and Construction Standards 2018
LIST OF STANDARDS
Bayham
Standard Drawing Description
MSD-1A Utility Locations for Residential Roads - 20.1m Road Allowance
MSD-1B Standard R.O.W. - Residential - Asphalt, Ditches
MSD-2 Utility Locations for Residential Roads - 26.1m Road Allowance
MSD-3 Utility Locations for Industrial Roads - 26.1m Road Allowance
MSD-4 Residential Cul-de-sac
MSD-5 Industrial Cul-de-sac
MSD-6 Standard Cross-Section - Local and Minor-Local Roadway Residential
MSD-7 Standard Cross-Section - Collector/Arterial Roadway Residential
MSD-8 Standard Cross-Section - Industrial Roadway
MSD-9 Walkway Details
MSD-10 Residential Driveway Entrance
MSD-11 Pipe Bedding Details Class B and Class C
MSD-12 Pipe Bedding Details Class A-1 and Class A-2
MSD-13 Lot Drainage Plan
MSD-14 Plan and Profile Legend
MSD-15 Lot Servicing
MSD-16 Rainfall Intensity Duration Curves
MSD-17 SWM Rainfall Intensity Chart
MSD-18 Private Drain Connections at Street Line
MSD-19 600 x 840 Precast Concrete Curb Inlet Catchbasin
MSD-20 Water Sampling Station
Municipality of Bayham
Design and Construction Standards 2018
OPSD
Standard No. Description
216.010 Boulevard Treatments, Urban Section
310.010 Concrete Sidewalk
310.030 Concrete Sidewalk Ramps at Signalized Intersections
400.020 Cast Iron, Square Frame with Square Flat Grate for Catchbasins, Herring
Bone Openings
400.090 Cast Iron, Curb Inlet Overflow for Catchbasins
401.010 Cast Iron, Square Frame with Circular Closed or Open Cover for
Maintenance Holes
403.010 Galvanized Steel Honeycomb Grating for Ditch Inlets
404.020 Aluminum Safety Platform for Circular Maintenance Holes
405.010 Maintenance Hole Steps (Hollow)
405.020 Maintenance Hole Steps (Solid)
600.040 Concrete Barrier Curb with Standard Gutter
600.060 Concrete Semi-Mountable Curb with Standard Gutter
701.010 Precast Concrete Maintenance Hole - 1200mm dia.
701.011 Precast Concrete Maintenance Hole - 1500mm dia.
701.012 Precast Concrete Maintenance Hole - 1800mm dia.
701.013 Precast Concrete Maintenance Hole - 2400mm dia.
701.014 Precast Concrete Maintenance Hole - 3000mm dia.
701.015 Precast Concrete Maintenance Hole - 3600mm dia.
701.021 Maintenance Hole Benching and Pipe Opening Alternatives
701.030 Precast Concrete Maintenance Hole Components - 1200mm dia.
701.040 Precast Concrete Maintenance Hole Components - 1500mm dia.
701.050 Precast Concrete Maintenance Hole Components - 1800mm dia.
701.060 Precast Concrete Maintenance Hole Components - 2400mm dia.
701.070 Precast Concrete Maintenance Hole Components - 3000mm dia.
701.080 Precast Concrete Maintenance Hole Components - 3600mm dia.
704.010 Precast Concrete Adjustment Units for Maintenance Holes, Catch Basins,
And Valve Chambers
705.010 Precast Concrete Catch Basin 600mm x 600mm
705.020 Precast Concrete Twin Inlet Catch Basin 600mm x 1450mm
705.030 Precast Concrete Ditch Inlet 600mm x 600mm
707.010 Precast Concrete Maintenance Hole Manufactured Tee
708.010 Catch Basin Connection for Rigid Main Pipe Sewer
708.030 Catch Basin Connection for Flexible Main Pipe Sewer
Municipality of Bayham
Design and Construction Standards 2018
OPSD
Standard No. Description
1003.010 Cast-in-Place Maintenance Hole Drop Structure Tee
1003.020 Cast-in-Place Maintenance Hope Drop Structure Wye
1003.030 Internal Drop Structure for Existing Maintenance Holes
1003.031 Internal Drop Structure for New Maintenance Holes
1006.010 Sewer Service Connections for Main Pipe Sewer
1102.01 Trench Bedding for Pressurized Conduits up to 900mm Diameter
(Rigid Pipe)
1102.02 Bedding for Pressurized Conduits (Flexible Pipe)
1104.010 Water Service Connection - 19 and 25mm Diameter Sizes
1104.020 Water Service Connection - 32, 38 and 50mm Diameter Sizes
1104.030 Blow Off Installation
1105.010 Hydrant Installation
1109.011 Cathodic Protection for PVC Watermain Systems