Two Westbound I-90 Closures Sept. 1922 Ramp to SR 18Snoqualmie Parkway and Lane Reduction in Issaquah
The westbound I-90 off-ramp to SR 18/Snoqualmie Parkway will close from 9 p. m. Friday, Sept. 19, to 5 a. m.
Monday, Sept. 22, for guardrail and curbing installation. A signed detour will redirect drivers, potentially causing delays. Before this closure, eastbound I-90 will be reduced to one lane from 8 p. m.
Thursday, Sept. 18, to 5 a. m. Friday, Sept. 19, to install traffic counting loops.
Furthermore, a pavement repair project in Issaquah will also reduce westbound I-90 to one lane from 8 p. m. Friday, Sept. 19, to 8 a. m.
Sunday, Sept. 21. This ongoing construction aims to improve the I-90/SR 18 interchange by widening SR 18 to two lanes in each direction. The work is weather-dependent and may be rescheduled if rain is forecast. Travelers are encouraged to use the WSDOT mobile app or website for real-time updates.
These improvements are expected to enhance traffic flow and safety in the region.