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How did they build the Hoover Dam?

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Originally called Boulder Dam, the Hoover Dam straddles the border of Arizona and Nevada. Construction began in 1933 and was completed two years later. read more

Meanwhile, the U.S. government set about finding a contractor to build the proposed 60-story arch dam. The contract was awarded in March 1931 to Six Companies, a group of construction firms that had pooled its resources to meet the steep $5 million performance bond. read more

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. read more

Hoover Dam did, and continues to do, all the things its supporters hoped it would. It protects southern California and Arizona from the disastrous floods for which the Colorado had been famous. It provides water to irrigate farm fields. read more

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