Where Is The Largest Water Tunnel In The World?
The longest tunnel of any kind is the New York City West Delaware water-supply tunnel, begun in 1937 and completed in 1944. It has a diameter of 4.1m 13ft 6in and runs for 169km 105miles from the Rondout reservoir into the Hillview reservoir, in Yonkers, New York, USA. Where is the world’s longest water tunnel? …