The culmination of a century-long dream to link the Great Lakes interior industrial hubs to the Atlantic Ocean, the St. Lawrence Seaway and Power Project stands as one of the largest public works initiatives of the 20th century. Between 1954-1959, the billion-dollar St. Lawrence Seaway and Power Project was the largest waterway and hydro dam project ever jointly built by two nations. It comprised seven locks, the widening of various canals, the taming of rapids, and the erection of the 3,216-foot long, 195.5-foot high Robert Moses-Robert H. Saunders Power Dam. Through the decades the Seaway has seen the transport of 2.5 billion tons of cargo (equivalent to 87 million truckloads) valued in excess of $375 billion. It also produces hydroelectric power for both countries.