PAGE, Ariz. — A five-day flood of water from Glen Canyon Dam that’s meant
to build up beaches and sandbars along the Colorado River starts Monday.
Most of the sediment that once flowed into the Grand Canyon now is trapped
upstream of Glen Canyon Dam.
Periodic flooding mimics the conditions of the dam before it was built in the
1960s, giving boaters a place to camp and helping out endangered fish that spawn
in pockets of warmer water.
The U.S. Bureau of Reclamation says the bypass tubes at Glen Canyon Dam near
the Arizona-Utah border will be opened Monday afternoon. Releases will return to
normal Nov. 16.
The flood will be the second since the Interior Department declared them
routine in a 10-year protocol.