Normandale Lake is a 112-acre waterbody in Bloomington, providing opportunities for walking, biking, picnicking, and boating. The lake was created in the late 1970s to help control downstream flooding. Nine Mile Creek flows through the lake on its way to the Minnesota River.

Normandale Lake 1971 aerial

Normandale Lake was created by the District in partnership with the City of Bloomington in the late 1970s to control flooding. It proved its worth in the 1987 superstorm. While parts of 494 were under 13 feet of water, Normandale Lake prevented considerable downstream damage by containing extra water.

Water QualityNormandale-Lake-Water-Quality

Normandale Lake is a shallow lake, which means aquatic plants naturally grow throughout the lake. The lake is not on the state’s impaired waters list. However, Nine Mile Creek flows through Normandale Lake. Due to the large, urban nature of the area that drains to the creek, which then flows to Normandale Lake, the lake receives nutrient pollution from these upstream areas. Nutrient pollution is when too many nutrients, like phosphorus, act like fertilizer and contribute to excessive algal growth.

Normandale Lake Report Oct 2017 (PDF)

Fish Survey

The District conducted a fish survey on Normandale Lake during the summer of 2018 and 2019 to determine the carp population in the lake and understand the fisheries community of the lake.

Normandale Lake 2019 Fish Survey Summary (PDF)

Normandale Lake 2018 Fish Survey Summary (PDF)

Normandale Lake Water Quality Improvement Project

To help improve the health of Normandale Lake, the District and City of Bloomington conducted a  drawdown, alum treatment, and herbicide treatment. The projects occur between August 2018-May 2020.

Learn more

How can you help?People cleaning up a stormdrain

Because Normandale Lake suffers from nutrient pollution, keep grass clippings, leaves, and fertilizer out of the street and stormdrains. These things feed algae.

Do you live in the watershed? Sign up at to adopt a stormdrain, and keep it clean. Once you have adopted your drain, sweep and rake the leaves and other debris from the surface of the drain year-round. As a thank you, you will receive a small, attractive yard sign. Put it in your yard to let your neighbors know you’re protecting clean water!