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 Airport not affiliated with a municipality, since the city of Sault Ste. Marie declined to assume control. In 2002, the SSMADC opened "Runway Park", an entertainment and recreation area, on unused airport property to help generate revenue to support the airport's operation. The Sault Ste. Marie airport has equipment to support instrument approaches for all-weather operation, and a Nav Canada control tower. Air Canada Express operated by Jazz Air flies to Toronto Pearson International Airport six times daily using Bombardier Dash 8-100 aircraft. Porter Airlines operates four daily roundtrip flights to Toronto Billy Bishop airport during weekdays and two daily flights