Straight Flush

Researchers' latest effort to shape the Grand Canyon

By Sid Perkins, 15:52 PM April 15, 2008

Last November, the Grand Canyon experienced its largest flood in more than 8 years. For nearly 4 days late that month, flow rates along the Colorado River swelled as much as 20 percent above typical peak flows. The massive inundation, rather than resulting from the series of storms that had soaked the region for months, occurred when engineers at Arizona's Glen Canyon Dam cranked open the floodgates to send extra water downstream.

The planned flood, designed and scheduled by scientists, was i...

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