FLAGSTAFF, Ariz. — An abundance of sand in the Colorado River is giving federal officials an opportunity to flood the waterway to spread the sediment throughout the Grand Canyon, creating sandbars and beaches for campers as well as protection for archaeological sites.
The U.S. Bureau of Reclamation oversaw a similar high-flow experiment from Glen Canyon Dam last November. The difference in the one starting Monday is that three times as much sediment is available from monsoons to be pushed through the river. It’s enough to spread across a football field 690 feet deep.
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