Weekend Road Closures in King and Snohomish Counties: What Washington Drivers Need to Know

Washington drivers should prepare for traffic disruptions this weekend as transportation crews carry out infrastructure repairs in King and Snohomish counties.

According to the Washington State Department of Transportation (WSDOT) and local officials, several road closures are scheduled, potentially causing significant delays for commuters and residents traveling through the affected areas.

North Creek Bridge Closure in Mill Creek

The City of Mill Creek is temporarily closing the North Creek Bridge to complete repair work. The overnight closures are scheduled from 9:00 PM to 4:00 AM during two weekends:

• November 13–16, 2026
• November 20–23, 2026

The closure will affect areas between North Road and Mill Creek Boulevard.

Local access will be limited to 5th Avenue and North Creek Presbyterian Church. Drivers should use designated detours to avoid the construction area.

Suggested alternate routes include:

• South via North Road
• East via Filbert Road
• North via Bothell-Everett Highway

City officials are warning motorists that surrounding roads may experience substantial delays. Drivers are encouraged to allow extra travel time and avoid the area when possible.

Eastbound SR 18 Closure Near Issaquah

Another major traffic disruption is scheduled for Sunday, November 15, 2026.

WSDOT plans to close all eastbound lanes of State Route 18 between Issaquah-Hobart Road SE (milepost 20) and the Interstate 90 interchange (milepost 28).

The closure is necessary to allow crews to complete drilling work.

Drivers traveling eastbound SR 18 will be directed to use Issaquah-Hobart Road and Front Street to reconnect with eastbound I-90.

Commercial trucks and freight vehicles are advised to use I-5 or I-405 as alternative routes. WSDOT warns that Issaquah-Hobart Road and local Issaquah streets are not suitable for freight traffic.

What Drivers Should Know

Motorists traveling through Mill Creek, Snohomish County, Issaquah, and surrounding areas should plan ahead, check traffic conditions, and consider alternate routes.

Drivers are encouraged to leave earlier than usual, follow posted detour signs, and monitor official transportation updates before starting their trips.

These temporary closures are part of infrastructure maintenance work intended to improve road conditions and transportation safety across Washington.