St. Marys River (Michigan–Ontario) arch bridge, takes road traffic across the river. Directly to the west is the Sault Ste. Marie International Railroad Bridge, which carries rail traffic on a single set of tracks. The Edison Sault Electric Hydroelectric Plant, located at the eastern end of the Sault Ste. Marie Power Canal which runs between Lake Superior and Lake Huron through the city south of the American locks, is one of the longest hydroelectric plants in the world at in length. The plant consists of 74 three-phase generators capable of generating 25 to 30 megawatts. It was completed in 1902. The hydro plant is
Sault Ste. Marie, Michigan split between Canadian Pacific and Canadian National Railway (CN). CN operates the rail lines and the bridge in the Sault Ste. Marie area that were formerly part of the Soo Line. The Sugar Island Ferry provides automobile and passenger access between Sault Ste. Marie and Sugar Island, formerly a center of maple sugaring. The short route that the ferry travels crosses the shipping channel. Despite the high volume of freighter traffic through the locks, freighters typically do not dock in the Sault. However, the city hosts tugs, a tourist passenger ferry service, and a Coast Guard station along the shoreline