Hoover Dam - Nevada : The Concrete Gravity Arch Dam.
The Hoover Dam - Megastructures - Full National Geographic Documentary
The Great Hoover Dam - A Video Tour Of The Damn Dam.
Construction of Hoover Dam | One of the Largest Dams of the World | Documentary Film
Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. Originally known as Boulder Dam from 1933, it was officially renamed Hoover Dam, for President Herbert Hoover, by a joint resolution of Congress in 1947.