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Seminary Pond

Capitol Region Watershed District (CRWD), the City of Lauderdale, the City of Falcon Heights, Ramsey County, and the University of Minnesota are working together to help minimize flooding and reduce pollution entering the Mississippi River by improving Seminary Pond in Lauderdale, Minnesota.

Partial funding for the project is provided by the State of Minnesota Clean Water Fund administered by Minnesota Board of Water and Soil Resources.

The Challenge

Seminary Pond is a regional stormwater pond receiving runoff from a 128-acre subwatershed in Lauderdale, Falcon Heights, and Saint Paul. The pond was created in 1994 and was originally designed to move and temporarily store water runoff. It has provided minimal treatment of polluted water going to the storm sewer system and the Mississippi River.

“Capitol Region Watershed District worked doggedly to pull together the partners and financial resources needed to accomplish the project. The beneficiaries are the Mississippi River and all of us who are committed to doing our part to protect and improve our local natural environment.” - Heather Butkowski, City of Lauderdale Administrator

The Solution

The Seminary Pond improvements include:

• removing over 25 years of built up sediment,
• expanding the pond’s capacity by deepening it and raising an earthen berm,
• stabilizing the channel, steep slopes and ravines leading up to the pond, and
• adding iron-enhanced sand filters on two edges of the pond to remove dissolved phosphorus, a pollutant in stormwater runoff that fuels algae growth.

The project will help minimize flooding downstream and remove an estimated 1.64 tons of sediment and 8.5 pounds of phosphorus annually. Preventing pollution from entering the Mississippi River will help meet the river’s water quality standards. In addition, the project will improve wildlife habitat by controlling invasive plants and replacing them with native plants in and around the pond.

Projects Updates

Construction will start in early October 2020. The project will be mostly completed at the end of 2020. Crews will return in late spring 2021 to restore the site with native plants.

Please check back to this page for construction updates.

Construction Camera