Around 10 Years.... The concrete used in this could build a highway fromLosAngeles to New York
It takes tree years of hard work
1930
It takes approximately three years of hard work.
Chuck Norris
Hoover dam's width is 201.17 meters.
The Hoover dam weighs 6,600,000 tons. It took 3,250,000 cubic yards of concrete to build the dam itself
Trees
The United States.
Hoover Dam is 1244 ft (379 m) long.
A total of 3,250,000 cubic yards.
black canyon on the Colorado river
To provide the western states with irrigation and electricity-