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Silt run begins for irrigation districts | Rural Radio Network

Silt run begins for irrigation districts

Silt run begins for irrigation districts
Water cuts through canyon on way to Guernsey Reservoir. KNEB/RRN/Guzman

MILLS, Wyo. – Boaters and recreationists will see the water levels at Guernsey Reservoir decrease beginning July 5, as the annual silt run for the Guernsey Reservoir begins.

The Wyoming Area Office of the Bureau of Reclamation in Mills began lowering the water level in the Guernsey Reservoir July 4.

“The run is done by contract between the bureau of reclamation and the Goshen District in Wyoming and the Gering-Fort Laramie, and Pathfinder Irrigation Districts in Nebraska,” said Mahonri Williams, chief of the resource management division of Wyoming Bureau of Reclamation. “Silt in the water goes into the canals and settles out to act as a seal for the canal bottom and sides to reduce the seepage from the canals, as irrigation deliveries are made through the summer.”

On July 4, the release of water from Glendo Reservoir will be decreased from approximately 5,000 cubic feet per second (cfs) to a flow of approximately 3,000 cfs. The decreased flow will cause a rapid decline of the Guernsey Reservoir level of about 25 feet starting the morning of July 5 through July 10.

Williams said by July 8, the boat ramps at Guernsey Reservoir will no longer be usable due to the low reservoir level.

The silt run will run through July 25, when the Bureau of Reclamation will begin to refill Guernsey Reservoir.

The level of Guernsey Reservoir is expected to be suitable for boating again by July 28.

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

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