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Modern Marvels
1993
Published on, 3 months ago
Modern Marvels
Grand Coulee Dam 1 Season 1 Episode
44 min
1993
8.7
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.
