News Release Archive

Guernsey Reservoir Levels

Media Contact: John H. Lawson, (307) 261-5671, 09/03/2009 06:00
Michael R. Odle, modle@usbr.gov

For Release: September 03, 2009

The Wyoming Area Office of the Bureau of Reclamation in Mills, Wyo., will be lowering the water level in Guernsey Reservoir as the 2009 irrigation season draws to a close, according to John H. Lawson, Wyoming Area Manager.

Beginning September 8, 2009, the release of water from Glendo Reservoir will be decreased from approximately 4,000 cubic feet per second (cfs) to 1,000 cfs by September 11 to lower the water elevation in Guernsey Reservoir. Releases from Glendo Reservoir are anticipated to be reduced to 25 cfs during the week of September 14.

Guernsey Reservoir is expected to remain accessible for boating recreation through the weekend of September 5-7. Reclamation will begin drawing down Guernsey Reservoir on Tuesday, September 8. To avoid potential problems associated with declining reservoir levels, Reclamation advises that watercraft be removed from the reservoir by the evening of Monday, September 7. Beginning on September 8, the reservoir will begin to decline as the irrigation season draws to a close. The reservoir will not be suitable for boating recreation until next year.

Glendo Reservoir is expected to reach a water surface elevation as low as 4583 feet (110,000 acre-feet) by mid September. Glendo Reservoir levels will then stabilize and slowly increase during the winter.

Boaters, recreationists, and irrigators should take proper precautions regarding changing river flows between Glendo and Guernsey Reservoirs and the lowering of Guernsey Reservoir.

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The Bureau of Reclamation is a federal agency under the U.S. Department of the Interior and is the nation's largest wholesale water supplier and second largest producer of hydroelectric power. Our facilities also provide substantial flood control, recreation opportunities, and environmental benefits. Visit our website at https://www.usbr.gov and follow us on Twitter @USBR; Facebook @bureau.of.reclamation; LinkedIn @Bureau of Reclamation; Instagram @bureau_of_reclamation; and YouTube @reclamation.

Relevant Link:

Wyoming Area Office Home Page