Introduction to the Flood Risk Maps

There were nine preliminary maps released on November 9, 2016 that covered four areas of the City, as shown below. The fifth area is an industrial area in north west Edmonton and will be studied in the future.

Because Edmonton's drainage system was built over time, older parts of the city were built to different standards than what exists now. The Edmonton of decades past, remember, had a much smaller population, with less demand on the system, and experienced different, less-severe rainstorms.

After severe storms in 2004 and 2012 overwhelmed the drainage system, City officials and staff realized that the best way forward would be to start a proactive study of urban flood mitigation measures. This initiated the City-Wide Flood Assessment which produced the flood maps and future project planning to be brought forward to Council on June 9, 2017.