The Port of Monroe, which is directly connected to the Great Lakes-St. Lawrence Seaway System, is a deep draft commercial harbor with authorized depths of 21 feet in the main shipping channel of the River Raisin and 18 feet in the Port’s turning basin.

Authorized depths are calculated from a low water datum and on average run a minimum of +48 inches, giving the Port of Monroe roughly 25 feet of draft at its 2,000-ft Riverfront Dock, and 22 feet of draft at its 1,000-ft Turning Basin Dock. The Port also includes 1,500 feet of private dock space, serving DTE Energy’s Monroe Powerplant.