Largest drain hole in the world

February 14, 2007


This is the world's largest drain hole, and is located at the Monticello Dam in northern California. When the dam reaches capacity the spillway swallows water at a rate of 48,800 cubic feet per second, emptying about 700 feet away. Super cool? Hecks yeah it is.

  • mitchell


  • mitchell

    wow thats scary

  • proman55

    Sorry guys, but this is not the biggest in the world. Geehi dam  part of the Snowy Mountains Scheme of Australia has a Bellmouth spillway of 105ft Dia that can discharge 55,000 cusecs (Cubic feet per second)

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