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November 2025
King County’s contractor is continuing to prepare work areas for active construction in Bellevue.
Beginning as early as Monday, Dec. 1, the contractor will have a temporary, northbound single-lane closure on Coal Creek Parkway Southeast, near Factoria Boulevard Southeast. This is required so the contractor can safely prepare the work area in the Newport Covenant Church south parking lot for future construction activities. This temporary lane closure will last at least one week.
What to expect:
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Traffic impacts: Expect traffic delays. At least one lane of traffic will be maintained in each direction. Flaggers will be present to direct traffic. Drivers and cyclists will share a lane when traveling through the work area and are advised to use caution.
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Work hours: Permitted work hours for the northbound single-lane closure are 10:30 a.m. to 7:30 p.m., Monday to Friday.
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Noise: There will be typical construction noise near work areas.
 Note: Lane closure area shown on the map is approximate.
The daytime northbound and southbound single-lane closures on Coal Creek Parkway SE will remain in place as construction activities continue. We will provide timely updates on any changes to the expected traffic impacts.
- Permitted work hours for the southbound single-lane closure are 6 a.m. to 3 p.m., Monday to Friday.
- Permitted work hours for the northbound single-lane closure are 10:30 a.m. to 7:30 p.m., Monday to Friday.
 Note: Lane closure areas shown on the map are approximate.
About this project
Construction for King County Wastewater Treatment Division's (WTD) Coal Creek Sewer Upgrade Project began this past June. This multi-year project will provide needed wastewater capacity for growing communities in Bellevue and Newcastle.
After the pipe work is completed, the contractor will restore the Coal Creek Natural Area, parking areas, and affected roadways to protect the creek, trails, and infrastructure. The rebuilt Red Cedar Trailhead will retain the same look-and-feel while enhancing accessibility for visitors of all abilities.
For more information
Visit the Coal Creek project website for the most up-to-date construction information:
Call or email: Frances Kuo at 206-492-6499 or CoalCreekProject@kingcounty.gov.
Note: This is the King County Coal Creek Sewer Upgrade Project hotline. If there is an emergency, please dial 911. This phone line is for incoming calls only. We will never call you by this number. If you receive a call claiming to be from this number, please be aware it may be a scam.
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