Storm Drainage

The City's Transportation and Works Department's Standard Drawings and Development Requirements are reviewed regularly and updated as required. The most up-to-date standards are available online.

If you have questions or comments, please call the City's Transportation Asset Management Section at 905-896-5170.

There are three different ways to access the Standard Drawings. Below, all available drawings are listed by title under the sub-heading of Storm Drainage, including the complete section of this manual. If you need to view/print a drawing by individual number, use the navigation on the left hand side of this screen to select "Standard Drawings".

Documents
All of the following documents requires Adobe Acrobat Reader to be installed on your computer. This software is free and available from the Adobe Website.
  Standard Drawing 2111010
Storm Drainage Intensity,Duration,Frequency Rainfall Curves (run-off calculations)

  Standard Drawing 2112010
Storm Drainage Circular drain nomograph flowing full (storm sewer requirement)

  Standard Drawing 2112020
Storm Drainage Design chart for open channels (storm sewer requirement)

  Standard Drawing 2112030
Storm Drainage Design chart for circular drains flowing full (storm sewer requirement)

  Standard Drawing 2112031
Overland Flow Design Chart

  Standard Drawing 2112040
Storm Drainage Backfill load on pipes-on site backfill materials (storm sewer requirement)

  Standard Drawing 2112050
Storm Drainage Live loads on pipes-kN/m (storm sewer requirement)

  Standard Drawing 2112060
Storm Drainage Pipe strengths and bedding design chart (storm sewer requirements)

  Standard Drawing 2112070
Storm Drainage Minimum class of concrete pipe (storm sewer requirements)

  Standard Drawing 2112071
Storm Drainage Specified Minimum Class of Pipe

  Standard Drawing 2112080
Storm Drainage Bedding for concrete pipe (storm sewer requirements)

  Standard Drawing 2112100
Storm Drainage Sand Cover (storm sewer requirements)

  Standard Drawing 2112110
Storm Drainage Sewer bedding-19mm stone (storm sewer requirements)

  Standard Drawing 2112111
Storm Drainage Granular filter material 6mm washed chip (storm sewer requirements)

  Standard Drawing 2112120
Storm Drainage Swing grate for storm outlets 900 dia. to 3650 dia. (storm sewer requirements)

  Standard Drawing 2112130
Storm Drainage Swing grate for storm inlets 900 dia. to 3650 dia. (storm sewer requirements)

  Standard Drawing 2112131
Storm Drainage Trash rack grate for storm inlet 900 dia. to 3000 dia. (storm sewer requirements)

  Standard Drawing 2112132
Storm Drainage 900 dia. to 3000 dia. (storm sewer requirements)

  Standard Drawing 2112200
Residential Driveway Headwall

  Standard Drawing 2113010
Storm Drainage Drop pipe for manholes (manhole requirements)

  Standard Drawing 2114010
Storm Drainage Precast catchbasin without sump (catchbasin requirements)

  Standard Drawing 2114020
Storm Drainage Precast ditch inlet without sump (catchbasin requirements)

  Standard Drawing 2114030
Storm Drainage Side Inlet Catchbasin (one of two)

  Standard Drawing 2114031
Storm Drainage Side Inlet Catchbasin (two of two)

  Standard Drawing 2115010
Storm Drainage Location of services single family residential lot (roof leaders, foundation drains and storm connections)

  Standard Drawing 2115020
Storm Drainage Location of services semi-detached residential lot (roof leaders, foundation drains and storm connections)

  Standard Drawing 2115030
Storm Drainage Location of single family residential lots where double sanitary and storm house connections are used (roof leaders, foundation drains and storm connections)

  Standard Drawing 2115040
Storm Drainage Location of services single family residential lots where rear yard catchbasin connections are required (roof leaders, foundation drains and storm connections)

  Standard Drawing 2115050
Storm Drainage Sewer connections in common trench (roof leaders, foundation drains and storm connections)

  Standard Drawing 2115051
Storm Drainage Heavy Duty 'Fish' Type Catchbasin Cover

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