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Expect Delays, Westbound I-90 in Issaquah Down to One Lane for Bridge Repairs This Weekend

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Published on September 19, 2025
Expect Delays, Westbound I-90 in Issaquah Down to One Lane for Bridge Repairs This WeekendSource: City of Snoqualmie

Up to three right lanes of westbound I-90 in Issaquah will be closed for bridge repair work from 8 p.m. on September 19 to 8 a.m. on September 21. The closure extends from just east of the Sunset Way off-ramp to near Front Street, reducing traffic to one lane, according to the City of Snoqualmie.

The East Sunset Way on-ramp to I-90 westbound will be closed, with a detour to the 270th Avenue SE/SE High Point Way on-ramp. The speed limit in the work zone will be reduced to 45 mph. Crews will replace pavement, repair expansion joints, and install waterproofing on two bridges, continuing work from September 12–14. The westbound I-90 off-ramp to SR 18/Snoqualmie Parkway will also be closed from 9 p.m. on September 19 to 5 a.m. on September 22 for guardrail and curbing installations, with a detour at Preston/Fall City (Exit 22). Officials advise drivers to expect "significant delays during busy travel times," as reported by the City of Snoqualmie.

Eastbound I-90 will be reduced to three lanes between East Mercer Way and Bellevue Way SE from September 18 to October 5 for expansion joint replacement on the East Channel Bridge. The 80th Avenue SE HOV ramp and the East Mercer Way on-ramp to eastbound I-90 will remain closed until at least September 24. The work is part of a project to repair pavement and extend the lifespan of bridges built in the 1970s. Washington State Department of Transportation has also scheduled westbound I-90 lane reductions for September 26–28 and after the October 4–5 Issaquah Salmon Days festival. Travelers can find updates through Washington State Department of Transportation’s app, travel map, or email alerts, as stated by the City of Snoqualmie.

Seattle-Transportation & Infrastructure