Visiting Hoover Dam, near Las Vegas, Nevada in November 1989.

View of the dam face from the Arizona side.

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Visiting Hoover Dam, near Las Vegas, Nevada in November 1989.

Two of the four intake towers through which water flows to the turbines that drive the generators.

(Scanned 35mm color negative)

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Visiting Hoover Dam, near Las Vegas, Nevada in November 1989.

One of the two spillways that can provide a path for excess water if necessary. These have only been used a very few times since the dam was completed.

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Visiting Hoover Dam, near Las Vegas, Nevada in November 1989.

Generators located in a large hall at the base of the dam.

Tags:   Hoover Dam Lake Mead concrete water storage hydroelectric electric electricity electrical power generation Nevada powerhouse generator generators

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Visiting Hoover Dam, near Las Vegas, Nevada in November 1989.

One of the 30-foot diameter steel "penstocks." These are very large pipes that transport water to the turbines that power the generators.

Tags:   Hoover Dam Lake Mead concrete water storage hydroelectric electric electricity electrical power generation Nevada penstocks

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