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Hoover Dam Preview

  • Aired: 04/17/2012
  • 00:30
  • Rating: NR
During the Great Depression, Americans built the Hoover Dam, overcoming technical challenges to erect one of the greatest engineering works in history.
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Hoover Dam Preview
Hoover Dam Preview
A preview for Hoover Dam, broadcasting April 17 at 9/8c.
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