Las Vegas Sun

May 18, 2024

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Hoover Dam - Plans

Sun File Photo

Henry Jo Kaiser signs a contract on March 11, 1931 for the federal government to start building the Hoover Dam with the help of contractor Six Companies Inc. Six Companies Inc. was a joint venture between Bechtel Corporation, Kaiser Industries, and several smaller construction companies across the West. The project started on April 20, 1931 and finished on March 1, 1936. It cost $49 million and is the second highest dam in the country.