Hoover Dam

Hoover Dam (originally called Boulder Dam) is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the US states of Arizona and Nevada.

Since about 1900, the Black Canyon and nearby Boulder Canyon had been investigated for their potential to support a dam that would control floods, provide irrigation water and produce hydroelectric power. It was first authorized in 1928, constructed between 1931 and 1936, and was dedicated on September 30, 1935, by President Franklin Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over a hundred lives.

Hoover Dam in Southern Victory
In 1943, during the Second Great War, Boulder Dam was a target of a Confederate aerial raid launched from Sonora. The Dam attack was just a smokescreen for the bombing raid on the U.S. superbomb facility at Hanford Washington.