The Hoover Dam is a concrete gravity dam.
It was built for flood control and for hydroelectric power generation.
It took four years to build the dam and it was built for $1,000,000 UNDER budget.
Boulder City, Nevada was built for the men and their families that helped to build the dam. It is located about 20 miles from Las Vegas, near the dam.
Ninety-six men were killed building the Hoover Dam and their names are on a wall to remember them.