On a recent driving trip through Joshua Tree, Yosemite, and Death Valley, we also made a stop at Hoover Dam. It is impressive!
Hoover Dam is a concrete arch dam in the Black Canyon of the Colorado River, on the border between Arizona and Nevada. It was constructed between 1931 and 1935, during the Great Depression. It's construction employed thousands of workers and cost over one hundred lives. Hoover Dam formed Lake Mead. The dam's generators provide power for utilities in Nevada, Arizona, and California. Nearly a million people per year tour the dam. A new bridge opened in October 2010, so that traffic no longer must pass over the dam. The new bridge is also an engineering feat!