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Manmade flood roars through Grand Canyon

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Kristina
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« on: March 05, 2008, 01:26:32 pm »

Manmade flood roars through Grand Canyon

Story Highlights
NEW: Release of water from Glen Canyon Dam begins

Colorado River water to be relased from dam for three days starting Wednesday

Dam blocks sediment from river where it flows through Grand Canyon downstream

Officials hope release will redistribute sediment and refresh canyon ecosystem


Next Article in U.S.



     
PAGE, Arizona (AP) -- Federal officials have started a flood in the Grand Canyon in hopes of restoring its ecosystem.




Water rushes out of the Glen Canyon Dam and down the Colorado River on Wednesday.

 The torrent will flow for three days from the Glen Canyon Dam on the Arizona-Utah state line.

It began Wednesday morning.

The canyon's ecosystem was permanently changed after the construction of the Glen Canyon Dam in 1963.

The Colorado Riverdownstream used to be warm and muddy, but now it's cold and clear.

The shift helped speed the extinction of four fish species and push two others, including the endangered humpback chub, near the edge.

Officials hope the flooding will stir up sediment and redistribute it through the canyon. E-mail to a friend

Copyright 2008 The Associated Press. All rights reserved.This material may not be published, broadcast, rewritten, or redistributed.
http://www.cnn.com/2008/US/03/05/grand.canyon.flood.ap/index.html
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