The tunnel at Niagara Falls, completed in 2013, is one of the largest hydropower tunnels in the world with a length of 10 kilometers and a diameter of 14 meters. Thanks to the electronically verifiable waterproofing developed by ProGeo®, around 250,000 square meters of waterproofing could be checked for damage before concreting the tunnel tube.
Tunnel, Niagara Falls (Canada)
References, Civil engineering