Today in History (United States)

July 7, 1930 was the first day of construction on this massive dam. The history is amazing.

Hoover Dam, named after Herbert Hoover, the 31st president of the United States, is a concrete arch-gravity dam located in Black Canyon, near Boulder City. The dam lies between the borders of Arizona and Nevada. President Calvin Coolidge signed the bill authorizing the dam on December 21, 1928. Construction for the structure began on July 7, 1930 and continued until 1936. Its construction was the result of an enormous endeavor involving 21,000 men and the lives of over one hundred workers.
Visit The Wonder of Hoover Dam

The blazing hot summer temperatures and the lack of facilities presented large difficulties for the men. After five years of tremendous hard work and effort, six companies turned the dam over to the federal government on March 1, 1936. They were more than two years ahead of schedule.

The dam stands at 726.4 feet and 1,244 feet long at the crest. Hoover Dam is filled with 3.25 million cubic yards of concrete. The dam is protected from over-topping waters by two spillways running parallel to the canyon walls and acts as a reservoir to Lake Mead. The lake would not exist without the development of the dam. The hydroelectric energy from the dam’s generators provides power for public and private utilities in Nevada, Arizona, and California.

You can see some stunning photos and read more of the history here

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