From WSDOT — The emergency repair happening on SR 20 east of Loup Loup Pass following a washout earlier this month will require a full closure of the highway. From 6 a.m. Tuesday, May 28 until 9 p.m. Tuesday, June 4, the highway will be fully closed at milepost 222.4. The contractor has reached a point in their work that will require them to excavate very soft fill material under the roadway, which could compromise the stability of the lane that is still open to traffic. For the safety of drivers, it will be necessary to restrict all travel through that area until that work is complete. Westbound traffic from Okanogan toward Twisp will be detoured south along US 97 and eastbound traffic from Twisp toward Okanogan will be detoured south along SR 153.
For further information or potential updates, visit The WSDOT Blog.