The Hoover Dam is an engineering marvel, truly one of the great monuments to American ingenuity and strength. Like Mount Rushmore in South Dakota, I couldn’t help being struck by the sheer size of the dam. It was a massive project on an unprecedented scale, like the ancient pyramids. An entire city was built to house the thousands of workers.
The Hoover Dam spans the Black Canyon on the Colorado River, between Nevada and Arizona. U.S. Route 93 used to cross the dam, but a bypass was opened in 2010 to divert traffic away from the structure. The steel and concrete bridge, called the Mike O’Callaghan–Pat Tillman Memorial Bridge, is impressive in itself. The bridge is 1,900 feet long and 900 feet above the Colorado River.
The dam was built between 1931 and 1936 and cost $49 million ($700 million today). It was originally called the Boulder Dam, but Congress changed its name in 1947 in honor of former President Herbert Hoover. It rises 726.4 feet and spans 1,244 feet.