Washington is for Adventure on MSN
The largest concrete structure in the country sits in Washington, and it lights up for free every summer night
Grand Coulee Dam holds nearly 12 million cubic yards of concrete and generates more power than any other dam in the U.S.
Historic construction footage, photos, and newsreels help illustrate Grand Coulee Dam's construction, engineering challenges, and regional impact including power and irrigation. Produced by the Bureau ...
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