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News & Releases
Mountain-Prairie Region

News Release

Coordinated Reservoir Releases for Endangered Fish Not Needed this Spring

For Immediate Release

June 12, 2014

Two blue fish with orange. Credit: USFWS
Bonytail Chub. Credit: Kevin Kappenman / USFWS.

“Reservoir operators worked hard to minimize impacts that might result from high flows, and were still able to meet the endangered fish flow recommended target of 23,500 cubic foot per second (cfs), as measured at the Cameo gage on May 31. The river later peaked at 26,000 cfs on June 2,” said Upper Colorado River Endangered Fish Recovery Program (Recovery Program) Director, Tom Chart. 

A voluntary program, CROS was established in 1995 as part of the Recovery Program to enhance spring peak flows for endangered fish to a section of the Colorado River upstream of Grand Junction, Colorado. In average snowpack years, reservoir operators simultaneously release water to provide an enhanced peak flow that creates habitat conditions that benefit endangered Colorado pikeminnow, razorback sucker, humpback chub, and bonytail. Water managers and the U.S. Fish and Wildlife Service will start discussing operations to meet summer baseflow targets for the endangered fish when the spring flows subside.

The State of Colorado tracks Colorado’s surface water conditions online at: www.dwr.state.co.us/Surfacewater/default.aspx.

The Bureau of Reclamation tracks snowpack and reservoirs levels at:  http://on.doi.gov/1kXxZpn

– FWS –

U.S. Fish and Wildlife Service

Office of External Affairs

Mountain-Prairie Region

134 Union Blvd

Lakewood, CO 80228


303-236-3815 FAX



Michelle Garrison
(303) 866-3441 x 3213

Jana Mohrman
(303) 236-9883

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The mission of the U.S. Fish and Wildlife Service is working with Others to conserve, protect, and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American People.
Last modified: June 12, 2014
All Images Credit to and Courtesy of the U.S. Fish and Wildlife Service Unless Specified Otherwise.
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