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 Canada and the United States. Algoma Steel and the Chromium Mining and Smelting Corporation were key producers for transportation and military machines. The Huron Central Railway has been important to the operation of the steel operation, but Genesee and Wyoming, Inc., owner of the railway, has announced its intention to discontinue operations. It continued to operate under an agreement which terminated on August 15, 2010. Sault Ste. Marie prospered during the 1960s and '70s, but as imported steel began to compete with domestic production, the local industry began to contract. Since the late 1980s, Algoma has declared bankruptcy twice and