The Niagara Tunnel runs unseen directly below downtown Niagara Falls, Ontario. It follows Stanley Avenue, running next to two older OPG water diversion tunnels. Completed in March 2013, water that flows into the tunnel entrance, just above the Horseshoe Falls, drops about 100 metres (330 feet). Unheard and unseen, the water rushes around the falls, underneath the city, and onward towards its destination: the Sir Adam Beck Generating Stations.
The tunnel route under the city of Niagara Falls