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Storm drains in Calgary

Example of a Storm Drain in Calgary

Storm drains (or catch basins) are a part of Calgary's storm water drainage system. There are about 48,000 drains in Calgary. They drain water off sidewalks, streets and roads, into our storm system, and eventually into our rivers.

Snow and ice plugging your storm drain

If it's safe and possible to do, we recommend that you clear ice and snow that's blocking your storm drain to help water flow. If you are unable to clear the ice and snow yourself, please call 311 or fill out the online 311 request below.

Water - Storm Drain Concerns

Please note: Do not attempt to clean a catch basin if it's submerged in water. You cannot be sure if the grate is intact, presenting a safety risk. If the drain is covered in water, please call 311.

Pooled water on your street

In some areas, we install inlet control devices in the drain to control how fast water flows. They are designed to keep water on the road until the system can accept the extra water.

The flooding on your street will eventually drain once water volumes lower. These devices prevent the storm system from being overwhelmed, causing water backups or flooding to houses, garages and businesses.

If your storm drain is full of debris or damaged, please call 311 or complete the online 311 request below.

Water - Storm Drain Concerns

If you experience any of the of the following issues, please call 311 immediately:

  • The lid or grate is off or missing
  • Trapped animals
  • Storm drains backing up causing flooding in a house, garage or business
  • Safety issues such as water pooling on high speed highways

When sending your request, please make a note if you are near any of the following:

  • Bus shelter
  • Playground
  • Handicap zone
  • Daycare
  • Hospital
  • School
  • Senior home

Catch basins in your community

Help protect our rivers and streams!

Protect what's precious! Never pour or dump anything down a storm drain

All of our storm drain system enters into the Bow and Elbow Rivers without going through a treatment plant, so we need to make sure that the water draining into it is clean.

  • In the summer and fall, clear leaves, branches and sticks from the storm drain and throw them in the garbage.
  • In the winter and spring, clear snow and ice from the storm drain
  • Wash your car at a car wash (using soap or any other chemicals that rinse into storm drains is prohibited).
  • There aresubstantial fines for the dumping or pouring material down storm drains.