AHSAHKA, Idaho – Dworshak Dam discharge flows will begin decreasing at 12:01 a.m. tomorrow, April 15, according to U.S. Army Corps of Engineers officials. Flows will decrease during a 4-hour period from the current volume of 25,000 cubic feet per second (cfs) to a target flow of 8,000 cfs. The decrease will result in lower water levels and velocities in the North Fork Clearwater River. The change in flows coming from the Clearwater River’s North Fork will affect river surface elevation at and near the confluence with the main stem Clearwater River as flows are being adjusted.