WSDOT warns drivers to plan ahead for I-5, SR 18, and I-90 closures this weekend
KING COUNTY – Football fans aren’t the only ones gearing up this weekend. While the University of Washington Huskies face the Ohio State Buckeyes on Saturday, Sept. 27, Washington State Department of Transportation crews will be tackling major construction projects across King County. Closures begin late Friday, Sept. 26, and continue through Monday, Sept. 29.
The Closures
- I-5 Southbound (Kent) – Closed from SR 516/Kent Des Moines Rd. to South 272nd St.
11:59 p.m. Friday to 4 a.m. Monday.
Crews will replace 60 concrete panels. Detours via SR 99 or Military Rd. South. - I-90 Westbound (Issaquah) – Reduced to one lane near Front St. and on-ramp closed.
7 p.m. Friday to 8 a.m. Sunday.
Bridge repair work as part of a larger paving and expansion joint replacement project. - SR 18 Westbound (Auburn) – One lane open Friday evening through early Sunday, then full closure until Monday morning.
Crews will replace bridge joints. Police will direct traffic during detours.
Travel Tips
Drivers should expect heavy congestion, allow extra time, and consider rescheduling nonessential trips. Using transit, carpooling, or traveling outside peak hours will help ease delays.
Why It Matters
WSDOT says these closures are essential for preserving and improving critical infrastructure. The limited season of warm, dry weather makes weekend work the most efficient option, even if it causes temporary disruptions.
Stay Updated
Check real-time travel maps, download the WSDOT mobile app, or follow WSDOT on social media for the latest updates.