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There are six of them on the Colorado river. Glenn Canyon dam, Hoover dam, Davis dam, Parker dam, Palo Verde diversion dam and Imperial dam.
A nickname for the Hoover Dam is Boulder Dam.
Hoover
hoover dam =D
In the hoover dam.
Hoover Dam was built by people.
Hoover dam opened in 1920
Hoover Dam was originally called Boulder Dam.
Construction of Hoover Dam began on April 20, 1931, the dam was completed on March 1, 1936.
Herbert Hoover - Boulder Dam in the Black Canyon on the Colorado River was renamed to Hoover Dam in his honor.
When the dam was in its planning stages, in 1930, Herbert Hoover was President. It was then in 1930 that Secretary Ickes stated publicly that Hoover Dam was to be built, noting that naming a dam after a president was appropriate. In 1933, when Hoover was not re-elected, the name was reverted to Boulder Dam. It remained Bould Dam until 1947, when an act of Congress officially re-named the dam Hoover Dam.