24 Apr 2025

Dredged Material Management Plan: Pool 3 and Upper Pool 4, Minnesota and Wisconsin

The U.S. Army Corps of Engineers operates and maintains the Upper Mississippi River 9-Foot Channel Navigation Project, and one method the U.S. Army Corps of Engineers uses to keep the channel the right size is dredging river soils or “material.” The purpose of the Dredged Material Management Plan is to prepare a coordinated, long-term plan for managing dredged material in Pool 3 and Upper Pool 4. This plan was initiated due to needs for dredged material management upland placement sites.

21 Apr 2025

Minnesota River Navigation Project, Minnesota

The St. Paul District is responsible for maintaining the 9-foot navigation channel on the Minnesota River from its mouth in St. Paul, Minnesota, to river mile 14.7 in Savage, Minnesota, and the 4-foot channel depth from river miles 14.7 to 25.6 in Shakopee, Minnesota. Annual channel maintenance actions are required to maintain the congressionally authorized 9-foot channel depth. These channel maintenance activities consist of dredging, snag removal, and close monitoring of channel conditions.