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Hoover Dam Bridge

A new concrete arched bridge connecting Nevada and Arizona is constructed to replace the current route across the top of the Hoover Dam.

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  • Originally Aired December 5, 2008
  • Runtime 45 minutes
  • Content Rating United States of America TV-PG
  • Created October 13, 2013 by
    Administrator admin
  • Modified October 13, 2013 by
    Administrator admin