The Hoover dam has two spillways, one on the Nevada side and one on the Arizona side. The spillways are located 27 feet below the top of the dam, one on each side of the dam. Any water getting up that high will go into the spillways. There are "Drum Gates" in the spillways, but these are actually there to allow more water to be stored behind the dam. When they are raised they can allow an additional sixteen feet of level to be stored behind the dam. The spillways have only been needed twice in Hoover Dams history. The first time was in 1941 to test the system. The second time was in 1983 for an actual flood.
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 opened in 1920
Hoover Dam was built by people.
Hoover Dam was originally called Boulder Dam.
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.
the hoover dam
the hoover dam is 726.4 feet high