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07/07/1930 Hoover Dam construction begins

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The History of the Hoover Dam

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Hoover Dam Construction

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The secrets of the Hoover Dam

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The Hoover Dam - Megastructures - Full National Geographic Documentary

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Us Starts Work On Boulder Dam Aka Boulder Dam Inaugurated (0)

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 during the Great Depression and its construction was the result of a massive effort involving thousands of workers and cost over one hundred lives.
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