Bureau of Reclamation's Annual Drawdown of Alcova Reservoir

Annual Drawdown of Alcova Reservoir Begins October 1st

Written by on September 14, 2022

The Bureau of Reclamation will be lowering the water level in Alcova Reservoir as the 2022 irrigation season draws to a close. The annual drawdown of the reservoir will begin on Saturday, Oct. 1.


During October, “the reservoir water surface elevation will be lowered by about 10 feet, at a rate of approximately four inches per day,” the Bureau of Reclamation states. The reservoir’s normal winter operating range is between 5,487 and 5,489 feet.

Water released in the drawdown of Alcova Reservoir will be restored downstream in Glendo Reservoir.

Boat owners and recreationists should be aware of the declining level of Alcova Reservoir and take proper precautions. Alcova Dam is on the North Platte River about 35 miles southwest of Casper, Wyoming. The dam forms a reservoir from which water is diverted into Casper Canal for irrigation of lands in the Kendrick Project near Casper.

Winter releases from Alcova Reservoir generally provide power generation and relocate storage water into Glendo Reservoir for delivery the following spring and summer. Alcova Power Plant is located just downstream of Alcova Dam and has two 20.7 megawatt generating units.

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