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
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.