COOPERSTOWN (AP) - A U.S. Army Corps of Engineers study to determine the potential need of raising the dike that protects the city of Devils Lake has been expanded.

The $5 million study is now looking at potential flood risk management measures throughout the Devils Lake region, including more water storage in the upper part of the basin.

The study also now includes the city of Minnewaukan, the Spirit Lake Nation Reservation and Nelson County.

Corps spokesman Kevin Bluhm says the agency is taking public comments until the end of April. The corps plans to complete an initial project outline by June. Bluhm says it will address what is feasible and environmentally acceptable.