The Whirlpool Rapids Bridge, commonly known as the Whirlpool Bridge or the Lower Steel Arch Bridge, is a spandrel braced, riveted, two-hinged arch bridge that crosses the Canada–United States border,
Whirlpool Rapids Bridge (left) with out-of-service Michigan Central Railway Bridge (far right). A since-removed viaduct of the Niagara Scenic Parkway is also visible in the distance.