People traveling through the Interstate 90/State Route 18 interchange near Snoqualmie should expect four nights of lane and ramp closures beginning Monday, March 10.
Travelers should plan for delays and follow instructions from police officers, work crews and construction signs in the area during the following lane and ramp closures:
- SR 18/Snoqualmie Parkway on-ramp to eastbound I-90: The ramp will close from 9 p.m. Monday, March 10, to 5 a.m. Tuesday, March 11. A signed detour will use westbound I-90 and loop around at Preston/Fall City (exit 22) to eastbound I-90.
- Eastbound I-90: The left two lanes will close from 9 p.m. Tuesday, March 11, to 1 a.m. Wednesday, March 12, near the SR 18 interchange. The right two lanes will close from 9 p.m. Wednesday, March 12, to 12:01 a.m. Thursday, March 13.
- SR 18/Snoqualmie Parkway: SR 18/Snoqualmie Parkway will be reduced to a single lane in each direction under the I-90 bridges from 11 p.m. Tuesday, March 11, to 4 a.m. Wednesday, March 12. SR 18/Snoqualmie Parkway will be reduced to a single lane with flaggers alternating traffic under the I-90 bridges from 9 p.m. Thursday, March 13, to 4:30 a.m. Friday, March 14.
- Eastbound I-90 off-ramp to SR 18/Snoqualmie Parkway: The ramp will close from 9 p.m. Wednesday, March 12, to 5 a.m. Thursday, March 13. A signed detour will continue eastbound on I-90 to Winery Road/Southeast North Bend Way (exit 27) and loop around to use the westbound I-90 off-ramp to SR 18/Snoqualmie Parkway.
During the closures, contractor crews working for the Washington State Department of Transportation will install signs and work on traffic signals, loops, conduit, and road crossings. This work is part of the I-90/SR 18 Interchange Improvements project, which is building a diverging diamond interchange and 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]
