USA HISTORY

Detailed explanation-1: -Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt.

Detailed explanation-2: -Where is Hoover Dam? In Black Canyon spanning the Colorado River between Arizona and Nevada, about 30 miles southeast of Las Vegas, Nevada.

Detailed explanation-3: -Hoover Dam, formerly called Boulder Dam, dam in Black Canyon on the Colorado River, at the Arizona-Nevada border, U.S. Constructed between 1930 and 1936, it is the highest concrete arch dam in the United States.

Detailed explanation-4: -Completed in 1936, Hoover Dam was built to provide irrigation water and hydroelectric power, and to control seasonal flooding of the Colorado River, which made downstream settlement possible.

Detailed explanation-5: -Surveyors originally recommended the dam be constructed at Boulder Canyon, leading the initiative to be called the Boulder Canyon Dam Project. Even when Black Canyon later was deemed a better location for the new structure, it continued to be referred to as the Boulder Dam.