Geography of Arizona of which the one most vital to Arizona is the Central Arizona Project. The Central Arizona Project, which is 336 miles (541 km) long, diverts of water from Lake Havasu City into central and southern Arizona. The river is also utilized for hydroelectric power through various dams along the river. The dams on the Colorado River, going downstream, are the Glen Canyon Dam, Hoover Dam, Davis Dam, Parker Dam, Imperial Dam, Laguna Dam, and the Morelos Dam. The Gila River is long, and extends from southwestern New Mexico to its confluence with the Colorado River near Yuma. While the upper
Risks to the Glen Canyon Dam Risks to the Glen Canyon Dam Glen Canyon Dam, a concrete arch dam on the Colorado River in the American state of Arizona, has been associated with a large amount of risk, most notably the risk of its siltation and failure. Because of high silt content carried in by the Colorado and San Juan rivers, Lake Powell is gradually filling with sediment, decreasing its capacity; eventually the sediment will build up against the dam and affect its safe operation. The dam, anchored in unstable Navajo sandstone (sometimes said to be "solidified sand dunes"), nearly failed in 1983 as the result