Boise River flows decreasing to irrigation demands

Media Contact: Gina Baltrusch, (509) 527-7018,
Annette Ross, (208) 378-5322,

For Release: June 20, 2018

BOISE, Idaho – The Bureau of Reclamation and the U.S. Army Corps of Engineers will decrease flows from Lucky Peak Dam by 300 cubic feet per second (cfs) on Thursday, June 21, 2018, at 8 am. Flows through the city of Boise, as measured at the Glenwood Bridge gauge, will decrease to approximately 900 cfs by Thursday afternoon. Flows through town for the remainder of the season will be operated to meet irrigation demands.

Ada County Parks & Waterways will release information on when the Boise River float season begins. Please visit their Facebook page at for float season kick-off and river safety guidelines.

The Boise River reservoirs provided a full allocation for water supply this year and are currently at 93 percent of capacity.

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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Reclamation is the largest wholesale water supplier in the United States, and the nation's second largest producer of hydroelectric power. Its facilities also provide substantial flood control, recreation, and fish and wildlife benefits. Visit our website at and follow us on Twitter @USBR.

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