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Hoover Dam holds enough concrete to build a two-lane highway stretching from San Francisco to New York City. That's over 3. 25 million cubic yards of concrete! 2. Hidden within the dam's walls are 17 generators that produce electricity for millions of people. It's like a hidden power plant! 3. Did you know that the dam, in the shape of an arch, is taller than a 60-story building? It stands at a towering height of 726 feet! 4. The monument stands on the border of Nevada and Arizona, meaning you can have one foot in each state while standing on the dam! 5. Beneath Lake Mead, the reservoir created by the dam, lies the remains of the town of St. Thomas. It was once a vibrant community until it was flooded by the rising waters of the Colorado River.
