The U.S. Army Corps of Engineers, Detroit District (Corps) has conducted an environmental analysis in accordance with the National Environmental Policy Act of 1969, as amended. The Environmental Assessment (EA), 404(b)(1) evaluation, and a Public Notice (dated 22 June 2020) addresses the environmental consequences of the repair and improvement of the Corps’ Duluth Vessel Yard in Duluth, St. Louis County, Minnesota. The proposed work will be conducted under the Corps authority for the Federal Navigation Project.