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- Season 1 Episode 4 Dams

Trailer
How does a dam resist the crush of millions of gallons of water? Host David Macaulay surveys the dam -- the biggest, costliest structure of all -- from Hoover's concrete arch confronting the Colorado River to the Aswan High Dam, a veritable underwater mountain sitting on the Nile riverbed, holding back a lake the size of England.

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First Air Date: Jan 01, 1970

Last Air date: Jan 01, 1970

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