The City’s storm water system has been inspected and is designed to handle up to a 1 in 100 year event. The flooding that occurred in 2015 is extremely rare and very unlikely to happen again.
However, if there is a significant amount of water in a short amount of time, there may be some water pooling on the streets. This is a normal part of the way the system handles excess water.
How residents can prepare
If you are concerned about rainfall, here is what you can do:
- Keep your eavestroughs and drainage swales clear of leaves, dirt, and other debris.
- If you see clogged storm grates or garbage, and if it is safe to do so, you can remove the debris. If you are not comfortable removing the debris or there is a significant blockage, call Public Works at (403) 207-2807 and they can attempt to clear the grate.
- While the City is encouraging utility providers to ensure reliable electricity for Chestermere, no new infrastructure has yet been built. If you are concerned about your sump pump continuing to function in a power outage, you may want to consider a battery operated option or a backup source of power.
Chestermere’s storm water system and rainfall preparedness
In addition to inspecting the system as a whole, the City and CUI have been preparing to handle significant rainfall in the following ways:
- Maintaining the West creek storm water system and storm water area to allow excess water to flow more easily.
- Ensuring all pumps and hoses are functional and easily accessible should there be any backups to the storm water drainage system.
- Cleaning catch basins and ensuring that pipes are not clogged by trash or debris.
- Inspecting and removing the sediment control donuts on storm drains in new areas.
In the long term, the City has also undertaken a modeling study to better understand the drainage system and identify long term improvements. The City is also encouraging AltaLink and Fortis Alberta to ensure consistent power supply, even in the midst of storms.
If you start to experience excessive flooding in your neighbourhood, please take photos and call the City at (403) 207-2807. If you are in danger, call 9-1-1 immediately.