The Hoover Dam is constructed in the black canyon of the Colorado River on the borders between the U.S. of Nevada and Arizona. This dam is named after President Herbert Hoover and came into use on September 30, 1935, during the period of the great depression. In the early 1900 investigations began to study the potentials and capacities to support the dam and restrain the water from floods. The dam water was used to provide irrigation water and generate hydroelectric power. Hoover dam in Arizona is a famous tourist place with up to 7 million tourists in a year.
