The westbound Interstate 90 off-ramp to State Route 18/Snoqualmie Parkway will close from 9 p.m. Thursday, Feb. 6, to 5 a.m. Friday, Feb. 7, near the city of Snoqualmie.
People should follow a signed detour continuing westbound on I-90 to Fall City/Preston (exit 22) and loop back to the eastbound I-90 off-ramp to SR 18/Snoqualmie Parkway.
During the closure, contractor crews working for the Washington State Department of Transportation will anchor concrete barriers to create a safe work zone along the off-ramp. Crews are installing a culvert that will run beneath the new off-ramps when a new diverging diamond interchange opens in late spring or summer 2025.
This work is part of the I-90/SR 18 Interchange Improvements project, which also is widening more than two miles of SR 18 to two lanes in each direction south of I-90.
Real-time travel information is available via the WSDOT mobile app, the WSDOT Travel Center Map or by signing up for WSDOT’s email updates.
[Information provided by the Washington State Department of Transportation]
