The Yale Park boat ramp will be closed Dec. 6 and Dec. 7 while the lake is temporarily lowered to allow for a land survey of Saddle Dam.
With the seasonal closure of boat ramps at the Cougar and Beaver Bay campgrounds already in place, boat ramp access to Yale Lake will be unavailable for the two-day period. However, the ramp at Speelyai Park on Merwin Reservoir remains open.
PacifiCorp expects to begin refilling Yale Lake during the evening hours on Dec. 7, and the Yale Park boat ramp should be available the following morning.
Reservoir levels are always subject to fluctuation depending on the water management and power generation needs.