Coal Creek sewer upgrade

Project update

January 23, 2026

Early morning closure of Coal Creek Parkway SE on Jan. 28 and 30

On the early mornings of January 28 and January 30, the contractor will stop traffic in both directions on Coal Creek Parkway SE for short durations. The closures will be between the Red Cedar Trailhead entrance and north of the Forest Drive SE intersection, intermittently between 4 a.m. and 7 a.m.

These closures are required so the contractor can safely move oversized equipment in and out of the work area. Drivers should expect significant delays on Coal Creek Parkway SE during these hours. We encourage drivers to use alternate routes during the closures..

View work area and lane closure map, and what to expect.

Reminder: do not enter construction zones

The Red Cedar trailhead and other work areas are active construction zones and remain closed to all public use. Other trailheads in the area such as the Cinder Mine, Red Town, Coal Creek Family YMCA, and Forest Drive trailheads are available for trail users. Stay out of fenced areas and the creek bank for your safety and to protect the Coal Creek Natural Area and salmon habitat.

Interested in a project briefing for your community group?

We are available to meet with you or come to your next community event. The project team will share the latest project information and talk about what will happen over the next several years of construction. Please contact Frances Kuo 206-492-6499 or CoalCreekProject@kingcounty.gov.

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