The North Cascades Highway is closed because of a rock and mud slide and is not expected to open until 4 p.m. Thursday.
Crews must remove about 300 yards of mud and debris in a 10-foot-deep swath across the highway, and make sure that the slope is stable before reopening the cross-mountain route. The scenic drive is popular with vacationers heading to the Methow Valley and north-central Washington, and also with hikers, campers and long-distance bicyclists.
Highway gates are closed on the west side of the Cascades by the community of Diablo (milepost 134). On the east side, the highway gates are closed 14 miles west of Mazama (milepost 170). Gates were staffed overnight after the slide Wednesday to make sure campers and hikers along the highway could get out last night.