The City of Roseau is located in northwest Minnesota approximately 65 miles east of North Dakota and 10 miles south of the Canadian border. In 2002, the Roseau River reached record levels and the flooding devastated the area.

The US Army Corps of Engineers (St. Paul District) hired SEH to provide flood risk management services along the Roseau River including civil, geotechnical, hydraulic and structural engineering; and preliminary and final design, and construction management services.

The project consists of restriction structures, earthen levees, flood water storage areas and 4.5 miles of diversion channel. Future flood waters will flow into the diversion channel and water storage areas, which will divert the flood waters around the city.

After future flood events, water in storage areas and the diversion channel will be discharged back into the Roseau River downstream of the City. The channel bottom will be 150 feet wide, approximately 16 ft. deep at deepest point, and 310 ft. wide at the top (widest point).