American Falls Dam
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The American Falls Dam is a concrete gravity-type dam located near the town of American Falls, Idaho on the Snake River. When built, the dam required the entire population of American Falls to relocate their town since the sizable reservoir created by the dam completely covers the original townsite.
The existing dam is the second structure to be called the American Falls Dam. The original dam, completed in 1927, had deteriorated so a second dam was built just downstream in 1978.