SR 18 On-Ramp to Westbound Interstate 90 Closed October 36 Near Snoqualmie
The State Route 18/Snoqualmie Parkway on-ramp to westbound Interstate 90 will close from 9 p. m. on October 3 to 5 a. m. on October 6 for essential construction work.
Motorists must follow a signed detour using eastbound I-90, looping around at Southeast North Bend Way (exit 27). During the closure, crews will grind and grade the ramp in preparation for paving, completing the final configuration of the I-90/SR 18 diverging diamond interchange. A separate nighttime closure will occur from 9 p. m. on October 2 to 5 a.
m. on October 3 for guardrail and landscaping installation. The interchange improvements also include widening SR 18 to two lanes in each direction, a project set for completion later this fall. This construction aims to enhance traffic flow and safety in the area. Real-time travel updates can be accessed via the WSDOT mobile app and the Travel Center Map.
The Washington State Department of Transportation encourages all travelers to stay informed during this construction phase.