Summit Natural Gas of Missouri Inc. has worked hard to maintain our rates while bringing natural gasâa cleaner, lower cost energy sourceâto you and your region. In order to continue to provide you with the [...]
Hoover Dam. Hoover Dam, formerly called Boulder Dam, dam in Black Canyon on the Colorado River, at the Arizona-Nevada border, U.S. Constructed between 1930 and 1936, it is the highest concrete arch dam in the United States. It impounds Lake Mead, which extends for 115 miles (185 km) upstream and is one of the largest manmade lakes in the world.
By the time the fifth turbine is installed in 2016, Hoover Dam will likely need them all. Lake Mead, which sits on the border between Nevada and Arizona behind Hoover Dam, is expected to drop 2.4 meters in 2014, as less and less water flows downstream from Lake Powell, which straddles Utah and Â­Arizona.