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Glen Canyon Dam is a concrete arch-gravity dam in the southwestern United States, located on the Colorado River in northern Arizona, near the city of Page.The 710-foot-high (220 m) dam was built by the Bureau of Reclamation (USBR) from 1956 to 1966 and forms Lake Powell, one of the largest man-made reservoirs in the U.S. with a capacity of more than 25 million acre-feet (31 km 3). [4]
Glen Canyon Dam and Lake Powell near Page, Arizona. The dam and lake are major components in the Colorado River Storage Project's attempt to regulate the flow of the Colorado River. The Colorado River Storage Project is a United States Bureau of Reclamation project designed to oversee the development of the upper basin of the Colorado River.
Dams on tributaries are listed if they are taller than 250 ft (76 m), store more than 50,000 acre⋅ft (62,000 dam 3), or are otherwise historically notable. Tributary dams are organized into two lists; those in the Upper Basin, defined as the half of the Colorado River basin above Lee's Ferry , Arizona , and the Lower Basin.
In January 1963, the newly completed Glen Canyon Dam began impounding water. That August, with the dam releasing water at about 1,000 cubic feet per second (28 m 3 /s), Dock and others cruised the entire Colorado River in Marble Canyon and the Grand Canyon, just downstream of Glen Canyon Dam.
After decades of drought, the reservoir created by Glen Canyon Dam has dwindled to just a third full. Now, as the San Juan River flows toward Lake Powell, it rambles over a huge pancake of mud ...
The dam is named for Glen Canyon, a colorful series of gorges, most of which now are buried under the reservoir. Construction of Glen Canyon Dam began in 1956 and was finished in 1966. When the reservoir filled, the dam began to deliver a steady, regulated flow of water downstream and generate a cheap, plentiful supply of electricity.
Tourists look up at an old turbine runner during a tour of Glen Canyon Dam in Page, Ariz. on Sunday, June 21, 2015, as the U.S. Bureau of Reclamation wraps up a project to replace the eight ...
Newly discovered damage in Glen Canyon Dam would require releasing less water at low reservoir levels — a problem that increases water risks in the Southwest.