AHSAHKA, Idaho -- Water discharged from Dworshak Dam and Reservoir will increase at 11:59 p.m. today, May 22, from about 9,500 cubic feet per second (cfs) to 12,000 cfs, according to U.S. Army Corps of Engineers reservoir management officials.
Dworshak’s hydroelectric generator unit number 3 was placed back in service this afternoon, following required maintenance and testing conducted May 9-22.
The water surface elevation of the mainstem Clearwater River is expected to increase by about 6 inches during this outflow increase, as measured at the U.S.G.S. streamgage located near Peck, Idaho, about 4 miles downstream of Ahsahka.
The Corps works with regional water managers, other agencies and tribes, and fish managers and hatcheries in joint efforts to keep total dissolved gasses below the Idaho State maximum threshold, when possible.
For safety, the public is advised to be aware of danger associated with fluctuating river flows and elevations. Outflow water is deep, cold and fast, so extreme caution should be used near river banks. Boaters, anglers and other people using waterways both in Dworshak Reservoir and below the dam on the Clearwater River are advised to be alert to changes up or down in water elevation and volume of flow. Current Dworshak water-management conditions can be viewed on the Walla Walla District website at www.nwd-wc.usace.army.mil/nww/rreports.htm.
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Release no. 19-060