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Responding to changing weather patterns

Like many other municipalities Edmonton’s weather patterns are changing and that means our drainage system, a massive network of pipes that collects rainwater, needs to change too.

A City-wide flood mitigation study has been launched to take a proactive approach to dealing with those changes.

Large study area

The flood mitigation study focused on more than 160 neighbourhoods in Edmonton, most built before 1981. The drainage infrastructure in these neighbourhoods were built to the standards of their day, but times and needs are different now.


Which communities will benefit from this study?
​Over 160 residential neighbourhoods and 33 industrial parks are being studied in this program. Engineering assessments are currently underway to assess the drainage systems in these areas and help identify potential mitigation measures.
Which improvements will be implemented?
​Potential improvements include improving overland drainage routes, constructing new stormwater management dry ponds, and building new underground storage tunnels and sewers. Where practical, other drainage improvements will be incorporated in the combined sewer service communities.
When will the program be implemented?

EPCOR is developing a plan to reduce the risk of flooding in Edmonton due to extreme weather. Our goal is to effectively prioritize infrastructure investments to reduce flood impacts by identifying areas of Edmonton that have the highest risk through our Stormwater Integrated Resource Planning (SIRP). SIRP is an integrated and dynamic planning process. It takes a holistic approach, integrating a range of factors including community input, risk assessments, financial analysis, planning and operational responses and environmental concerns. This work builds on and integrates earlier work completed by the City and includes consultation with other levels of government, the public and the insurance sector.

The projects associated with this study will take decades to complete. We will take into consideration project sizes and complexities, public consultation requirements, attainable workloads for the workforce, and coordination with other projects.

Where can I find more information?

​9 preliminary neighbourhood flood maps from the City-wide flood mitigation study are available for residents to review. Additional materials are also available on the public engagement page.

An additional set of maps created by the City’s consultants are also available. The information on these maps is part of an ongoing project. As such, cost estimates, engineering solutions and other data presented in these additional maps may not be current.

Disclaimer: No Warranty with Flood Risk Maps.
Your use of the flood risk maps is solely at your own risk, and you are fully responsible for any consequences arising from your use of the flood risk maps. The flood risk maps are provided on an “as is” and “as available” basis, and you agree to use them solely at your own risk. There are no warranties, expressed or implied in respect to the flood risk maps or your use of them, including without limitation, implied warranties and conditions of merchantability and fitness for any particular purpose.

Please note that the flood risk maps have been modified from their original source, and that all data visualization on maps are approximate and include only records that can be mapped.