Those traveling over White Pass should expect weekend delays for several weeks as the Washington State Department of Transportation is reducing part of Highway 12 to a single lane.

The work will be happening five miles east of milepost 156 of the roadway; crews are repairing a section of deteriorating pavement. Geotechnical engineers with the state have been monitoring two large, deep-seated, slow-moving landslides under the roadway that are each about 500 feet wide.

Until the work is complete, traffic will be alternated through a single lane.