WSDOT

I-90 Both Directions - I-90 Snoqualmie Pass: Milepost 54 to 62, Day time hours: Drivers should prepare for intermittent rolling slowdowns Monday through Friday in both directions. Night hours: Drivers should prepare for delays due to single lane closures Monday through Friday nights. See WSDOT web page for freight movement restictions. I-90 is closed to bicycles between Hyak interchange (Exit 54) and Stampede Pass interchange exit 62. The John Wayne Pioneer Trail is available for detour. Last Updated: 6/16/2013 7:22 AM
From milepost 54 to milepost 62
Report Detail: I-90 Hyak to Keechelus Dam Project (mileposts 54 to 62) Contact: Will Smith, WSDOT Project Engineer (509) 577-1840 Construction Begins: March 2010 Scheduled Completion: Fall 2017 Project Description: This project is located in Kittitas County on Interstate 90, beginning in the Hyak vicinity (milepost 55) and continues five miles east on I-90 to the Keechelus Dam vicinity (milepost 60). This work includes building six new lanes, adding and replacing bridges and culverts, stabilizing rock slopes, extending chain-up and chain-off areas, and demolishing and replacing the snowshed.