Dworshak Dam

Photo: USACE

AHSAHKA, ID - Dworshak Dam releases will begin decreasing to minimum flow over the weekend. According to the U.S. Army Corps of Engineers, Dworshak Dam will begin decreasing flow Saturday evening (May 27) from the current release point of 2,300 cubic feet per second (cfs) to between 1,400-1,600 cfs.

Operations to decrease discharge to minimum flow at Dworshak will occur simultaneously with decreasing natural flows and are expected to result in the Clearwater River near Peck decreasing by less than a foot.

The decrease in discharge is due to Dworshak transitioning into final fill as the remaining snowpack melts off and runoff begins receding. Next week, a snowline verification flight will be conducted to verify the remaining snowpack in the Clearwater basin and to determine if it is safe to allow the reservoir to fill into the last 10 feet.

Releases will increase again when temperature flow augmentation is required in the Lower Snake River system, which typically occurs late June to early July.