Glen Canyon Dam

U.S. Bureau of Reclamation

The U.S. Department of the Interior has agreed to manage the Glen Canyon Dam for at least another twenty years. 

Melissa Sevigny

The Grand Canyon is running short on sand. Sediment that once washed down the Colorado River to form beaches is now trapped behind Glen Canyon Dam. For two decades river managers have released artificial floods to rebuild the beaches … but it’s not clear if the river has enough sand for these experiments to work in the long run. That’s what scientists want to find out.

USBR

An experimental release of water begins today at Glen Canyon Dam. The artificial flood will rebuild sandbars and improve wildlife habitat on the Colorado River.


US Bureau of Reclamation

The federal Bureau of Reclamation in early November will again increase flows of Colorado River water through the Grand Canyon.

Dave Heramimtschuk-USGS/Freshwater Illustrated

Several species of aquatic insects are mysteriously missing from the Colorado River in the Grand Canyon. Scientists now know that’s because dam managers rapidly change the river’s level to meet electricity demand.


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