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, Ontario Sault Ste. Marie, Ontario Sault Ste. Marie ( "Soo Saint Marie") is a city on the St. Marys River in Ontario, Canada, close to the US–Canada border. It is the seat of the Algoma District and the third largest city in Northern Ontario, after Sudbury and Thunder Bay. To the south, across the river, is the United States and the city of Sault Ste. Marie, Michigan. These two communities were one city until a new treaty after the War of 1812 established the border between Canada and the United States in this area at the St. Mary's River. In the