North Creek Bridge Restoration

Project Overview

The City is beginning essential structural repairs to the 164th St SE Bridge over North Creek (Mill Creek No. 1 Bridge) after a recent engineering evaluation identified support columns on the south side of the street as being in poor condition.

Traffic Impacts

URGENT TRAFFIC ALERT: North Creek Bridge Weekend Closures

Residents and businesses should prepare for significant traffic impacts throughout Mill Creek and surrounding communities as the North Creek Bridge undergoes critical repairs.

To allow crews to quickly and safely complete repairs, the bridge will be fully closed during the following periods:

Friday, November 13, from 9:00 p.m. to Monday, November 16, at 4:00 a.m.
Friday, November 20, from 9:00 p.m. to Monday, November 23, at 4:00 a.m.

For those heading east on 164th St. SE the primary detour route will direct traffic:

South on North Road
East on Filbert Road
North on Bothell-Everett Highway

Local access will remain available up to 5th Avenue and North Creek Presbyterian Church on the west side of the closure area.

⚠️ These closures are expected to create substantial delays on surrounding roadways. Motorists are strongly encouraged to allow extra travel time, avoid the area when possible, and use alternate routes.

Thank you for your patience as this important bridge repair work is completed.

Traffic Alert, 164th St Se closed • Friday, November 13, at 9:00 p.m. through Monday, November 16, at 4:00 a.m. • Friday, November 20, at 9:00 p.m. through Monday, November 23, at 4:00 a.m.

Closure Detour Maps

History

The 164th St SE bridge serves as a major east-west arterial crossing over North Creek.

The existing structure is a 28-foot single span bridge made up of two components: the original 59-foot-wide bridge constructed in 1967, and a 16-foot southern widening added in 1989. A repair project in 2012 replaced a 13-foot section of the original timber pile cap near the southwest corner.

To evaluate ongoing maintenance needs and structural integrity, the City of Mill Creek retained engineering consultant Otak, who conducted a physical field inspection of the bridge.

Project Goals

Address Urgent Structural Deficiencies

Immediately execute necessary structural repairs on the Mill Creek No. 1 bridge following its inspection rating.

Ensure Public & Worker Safety

Implement temporary lane shifts and turn restrictions to maintain safe travel through the corridor during construction.

Restore Long-Term Integrity

Complete required rehabilitation work efficiently to restore full capacity and extend the service life of the crossing.

Project Timeline

Emergency Declaration Signed

Complete

Oct 20, 2026

Traffic Adjustments Begin

In Progress

Oct 23, 2026