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| Hoover Dam www.youtube.com/watch?v=EmuDKEwywaU Hoover Dam is a concrete gravity-arch dam in the Black Canyon of the Colorado River, on the border of Arizona and Nevada. The dam located 48 kilometers (30 miles) southeast of Las Vegas and is named after Herbert Hoover, who played a in its construction, first as Secretary of Commerce and later as President of the United States. Hoover Dam was built by Six Companies, Inc., under Frank Crowe. Construction began in 1931 and was completed in 1936, over two years ahead of schedule. The dam is operated by the Bureau of Reclamation of the U.S. Department of the Interior. Listed on the National Register of Historic Places in 1981, Hoover Dam was designated a National Historic Landmark in 1985. Lake Mead is the reservoir created behind the dam, named after Elwood Mead who oversaw the construction of the dam. video: www.usbr.gov/lc/hooverdam/ Category: power interesting station lake public dam electricity generator turbine works hoover staumauer
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