News Release Archive

Lucky Peak Reservoir pool to begin lowering on August 17

Media Contact: Joe Saxon , (509) 527-7020,
Michael Coffey,

For Release: August 05, 2020

BOISE, Idaho -- The U.S. Army Corps of Engineers and the Bureau of Reclamation will begin lowering the pool elevation of Lucky Peak Reservoir on Monday, August 17. The lowering of Lucky Peak Reservoir follows a typical end of season reservoir drawdown for irrigation as experienced in prior years. Lucky Peak Reservoir pool began lowering on August 14 in 2018 and on August 18 in 2019.

Graph showing Lucky Peak Lake elevation near Boise Idaho

Currently, the Boise River System reservoirs are at 73 percent of capacity. Near normal to slightly above normal carryover is projected in the Boise River System reservoirs at the end of the irrigation season.

For real-time Boise River flows at Reclamation facilities in the Pacific Northwest Region, visit

The Corps of Engineers and the Bureau of Reclamation operate three dams on the Boise River as a system to manage flood control and irrigation storage needs — Lucky Peak Dam, Arrowrock Dam and Anderson Ranch Dam. Storage capacity provided by Reclamation’s Arrowrock and Anderson Ranch dams, and the Corps’ Lucky Peak Dam, combined with well-planned water releases, help manage Boise River flows through the City of Boise.

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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 and follow us on Twitter @USBR; Facebook @bureau.of.reclamation; LinkedIn @Bureau of Reclamation; Instagram @bureau_of_reclamation; and YouTube @reclamation.

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