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 language resolution the controversy. The resolution was struck down by a court ruling in 1994, and ceased to have legal effect. In 2010, John Rowswell, a subsequent mayor of Sault Ste. Marie, apologized to French Canadians across the country for the resolution. Sault Ste. Marie was founded by French-speaking missionaries in 1623 but had become overwhelmingly English-speaking by the twentieth century. In response to a French-language education controversy which began in 1987 when a group of Franco-Ontarian families lobbied to have a new French school opened in the city, the Sault Alliance for the Preservation of English Language Rights (SAPELR) was formed