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 route very similar to I-75. Commercial airline service is provided to the city by the Chippewa County International Airport in Kinross, about south. Smaller general aviation aircraft also use the Sault Ste. Marie Municipal Airport about one southwest. Sault Ste. Marie was the namesake of the Minneapolis, St. Paul and Sault Ste. Marie Railway, now the Soo Line Railroad, the U.S. arm of the Canadian Pacific Railway. This railroad had a bridge parallel to the International Bridge crossing the St. Marys River. The Soo Line has since, through a series of acquisitions and mergers of portions of the system, been