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South St. Paul is located along the western riverbank of the Mississippi River. Because of potential flooding, the US Army Corps of Engineers and the City of South St. Paul built the current floodwall and earthen levee in 1967. The levee was initially maintained by the Corps. In the early 1980's, the levee was turned over to the City for routine maintenance. The levee/floodwall protects most of the City’s business/industrial area near the river.
In 2012, the State of MN awarded a grant to the City to study, locate and preliminarily design a levee to protect an area of property south of I-494 in South St. Paul. The City hired an engineering firm to prepare the study. Phase 1 of the Levee Extension Study (PDF) was presented to the City Council along with a Levee Extension Study PowerPoint presentation (PDF).