Interesting Hoover Dam Facts

Interesting Hoover Dam Facts

  1. A total of 2,480,000 cubic meters (3,250,000 cubic yards) of concrete was used in the dam before the pouring of concrete stopped on May 29, 1935. 
  2. The water, after falling approximately 150 meters (500 feet) through the pipes to a hydroelectric power station at the base of the dam, spins 17 Francis-type vertical hydraulic turbines, which run a series of electric generators with a total output of 2,080 megawatts.
  3. In addition to hydropower, the dam is used for flood and silt control, agricultural irrigation, and domestic water supply.
  4. Hoover Dam is a dam in the Black Canyon on the Colorado River on the border between the US states of Nevada and Arizona.
  5. Since about 1900, the Black Canyon and nearby Boulder Canyon have been explored for their potential to support a dam that would control flooding, provide irrigation water, and produce hydroelectric power. In 1928, Congress approved the project.
  6. The dam was built between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt.
  7. It is a concrete structure with a thick arch, 221.4 meters high and 379 meters long.
  8. Hoover Dam was the world's tallest and most powerful dam until 1948.
  9. Today, Hoover Dam is a National Historic Landmark and still the tallest concrete arch dam in the United States. It is also listed as one of America's Seven Modern Civil Engineering Wonders.
  10. Its construction was the result of an enormous effort involving thousands of workers, and cost more than a hundred lives.
  11. Construction within the strict time frame proved a daunting challenge as the crew became bored in carbon monoxide-choked tunnels and dangled from a height of 244 meters (800 feet) to clear the canyon walls.
  12. Originally known as Boulder Dam in 1933, officially renamed Hoover Dam was for President Herbert Hoover, by a joint resolution of Congress in 1947.
  13. It takes Lake Meadbeslag, stretching over 185 kilometers (115 miles) upstream and one of the largest artificial lakes in the world.
  14. It is also a major sightseeing destination, with about seven million visitors a year, nearly a million of whom tour the dam. Lake Mead, the world's largest reservoir, is home to another 10 million as a popular recreation area.
  15. Construction of a long-planned Hoover Dam Bypass project began in January 2005, and in October 2010 a concrete arch bridge with a span of 322 meters (1,060 feet) - the longest in North America for that type of bridge - was opened for through traffic within view of Hoover Dam.
  16. During the Second World War, the dam was the target of a German bombing raid. In November 1939, as World War II was underway, US officials learned of an alleged plot by German agents to bomb the Hoover Dam by planting bombs at the intake towers to sabotage power to the Southern California aviation industry.
  17. Hoover Dam is the symbol of an era when an urban, industrial America enjoyed exploiting its natural resources.

 

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