Standing 726 ft (221 m) high and 1,244 ft (379 m) long, the Hoover Dam on the Colorado River between the US states of Nevada and Arizona is one of the world’s largest dams, impounding Lake Mead, the country’s largest reservoir. Upon its completion, it was the world’s largest electric power producing facility and the world’s largest concrete structure. In fact, some of the concrete is still curing today, and there is enough concrete in the dam to pave a two-lane highway from New York to where? Discuss