Lewiston Dam release to river is increasing

[Peterson, Eric B]

Flows from Lewiston Dam will be going up today (from a current flow of 450 cfs up to 1050 cfs) as a preventative baseflow increase to ameliorate hostile conditions in the lower Klamath River. An unusually early run of fall Chinook Salmon in the lower river is showing concerning levels of ich and columnaris, two diseases that have contributed to major fish kill events in years past. The release will be sustained for the time being and biologists will be keeping a careful eye on disease prevalence and severity to determine the effectiveness of this intervention. A release change order will likely be issued shortly.

---

Eric B. Peterson, Ph.D.

Trinity River Restoration Program

U.S. Bureau of Reclamation