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.
Named one of the Top 10 Construction Achievements of the 20th Century, Hoover Dam continues to draw crowds 80 years after its creation. Attracting more than a million visitors a year, Hoover Dam is located in Black Canyon, just minutes outside of Las Vegas. On April 20, 1931, construction began on the Hoover Dam, the largest of its kind at the time. Despite the remote location and harsh working conditions, it was completed on March 1, 1936 in less than five years -- two years ahead of schedule -- and well under budget.