Hoover Dam
Hoover Dam
Boul′der Dam′
n.
| Noun | 1. |  Hoover Dam - a large dam built in 1933 on the Colorado River in Nevada |
| 单词 | hoover dam | |||
| 释义 | Hoover DamHoover DamBoul′der Dam′n.
Hoover DamSee also: National Parks and Monuments (table)National Parks and Monuments Hoover Dam,726 ft (221 m) high and 1,244 ft (379 m) long, on the Colorado River between Nev. and Ariz.; one of the world's largest dams. Built between 1931 and 1936 by the U.S. Bureau of Reclamation, the dam is named for President Herbert HooverHoover, Herbert Clark,1874–1964, 31st President of the United States (1929–33), b. West Branch, Iowa. Wartime Relief Efforts After graduating (1895) from Stanford, he worked as a mining engineer in many parts of the world. ..... Click the link for more information. ; from 1933 to 1947 it was known as Boulder Dam. A key unit on the ColoradoColorado . 1 Great river of the SW United States, 1,450 mi (2,334 km) long, rising in the Rocky Mts. of N Colo., and flowing generally SW through Colo., Utah, Ariz., between Nev. and Ariz., and Ariz. and Calif. ..... Click the link for more information. , the dam is a major supplier of hydroelectric power and provides for flood control, river regulation, and improved navigation. Hoover Dam impounds Lake MeadMead, Lake, 247 sq mi (640 sq km), on the Nev.-Ariz. border, formed by Hoover Dam across the Colorado River. The lake is 115 mi (185 km) long, from 1 to 8 mi (1.6–12. ..... Click the link for more information. , the largest reservoir in the United States; water is used to irrigate more than 650,000 acres (263,000 hectares) in S California and Arizona, and c.400,000 acres (162,000 hectares) in Mexico. The nearby O'Callaghan-Tillman Memorial Bridge (2010), with the longest concrete arch, 1,079 ft (329 m), in the United States, crosses the river below the dam. Hoover Dam is part of Lake Mead National Recreation Area (see National Parks and MonumentsNational Parks and Monuments National Parks Name Type1 Location Year authorized Size acres (hectares) Description Acadia NP SE Maine 1919 48,419 (19,603) Mountain and coast scenery. ..... Click the link for more information. , table). Boulder CityBoulder City, residential city (1990 pop. 12,567), S Nev., just W of Hoover Dam near Lake Mead; inc. 1959. Built (1932) by the federal government as headquarters during the dam's construction, it became a self-governing municipality by act of Congress in 1958. ..... Click the link for more information. , Nev., was built to house workers on the project. BibliographySee J. E. Stevens, Hoover Dam (1988). Hoover DamHoover Dam
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