Grand Coulee Dam

December 10, 1993
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Modern Marvels - S1 - E1

Grand Coulee Dam

The world’s largest concrete dam–and the largest concrete structure in the world–lies on the Columbia River in the State of Washington. B uilt in 1931, it is also one of the largest hydroelectric power plants in the world.

Modern Marvels: Season 1 - 6 Episode s