Conconully Safety of Dams

Conconully Dam, Okanogan Project, Washington

Aerial View of Conconully Dam, Okanogan Project, Washington

All dams are regularly monitored under the Bureau of Reclamation’s Safety of Dams program and are routinely evaluated for seismic risks using seismic models to predict how a dam behaves during earthquakes. Detailed analysis and studies are done to ensure the dam’s risk are not outside their recommended Interim Dam Safety Public Protection Guidelines - August 2011.

The Conconully Dam structure is performing as designed. Reclamation and Okanogan Irrigation District are developing construction alternatives to modify and reduce risk at Conconully Dam in the event of an earthquake. Reclamation is committed to ensuring clear and open communication with downstream residents. As the project evolves, Reclamation will update the Dam Safety Process and Schedule >>

Stay informed. To receive alerts about emergencies and other important Conconully community news by signing up for the Okanogan County Alert System >>

03/2023Public Information Meeting and Open HousePDF 1.07 mb
05/2022 Public Notice Closure Announcement
09/2021 Conconully Public Notice PDF 127 kb
03/2021 Living with Dams: A Shared Responsibility PDF 4.53 mb
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Christopher Regilski
Regional Safety of Dams Coordinator

Columbia–Pacific Northwest Region
Bureau of Reclamation
1150 N Curtis Road
Boise, Idaho 83706-1234

Last Updated: 2/20/24