Hoover Dam is what is called an arch-gravity dam. The name curved-gravity dam or arched dam might also be applied. This type of dam uses a curve or arch which has it's apex or "top" directed ''against'' the force of the water it is retaining. This sets up a condition wherein the water will compress the dam against the sides to which it is anchored. Less material fill is required to hold this dam in place compared to a simple gravity dam. Use the link below to learn more. Another link will show lots of images of this and other dams of the same type.
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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.
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hoover dam =D
In the hoover dam.
No The Fort Peck Dam is the largest dam in the US. It's only 1/3 the height, but much longer (nearly four miles long compared to Hoover's 1/3 of a mile), and has a total volume of over 30 times that of Hoover Dam. Hoover Dam is a different type of dam than Fort Peck Dam, but still, they're not even close.
Hoover dam opened in 1920
Hoover Dam was built by people.
Hoover Dam was originally called Boulder Dam.
gravity arch bridge
Herbert Hoover - Boulder Dam in the Black Canyon on the Colorado River was renamed to Hoover Dam in his honor.