Course of the Colorado River into the Virgin River, which ran southward through what is now Overton Arm to join the Colorado River near the now-ghost town of St. Thomas, Nevada. At Hoover Dam, the Colorado turns due south through Black Canyon, a direction it will follow for the remainder of its course to the Gulf of California. It passes under the Mike O'Callaghan–Pat Tillman Memorial Bridge (Hoover Dam Bypass), the highest concrete arch bridge in the world, carrying U.S. Route 93 at a height of above the Colorado River. At the end of Black Canyon the Colorado widens into Lake Mohave, created by the
Mratinje Dam Mratinje Dam The Mratinje Dam is a concrete arch dam in the canyon of the Piva River in Montenegro. The dam was completed in 1975 with designs by Energoprojekt. Its construction resulted in the flooding of the Piva canyon and the creation of Lake Piva, which, with its 12.5 km², is the second largest lake in Montenegro. The dam is high, one of the highest in Europe. The dam is long and thick at the crest, while it is long and thick at the base. The foundations go as deep as into the ground. of concrete and 5,000 tonnes of