Snoqualmie River flooding in December has slowed repairs to a damaged revetment and pushed back completion of the Sinnema-Quaale Upper Revetment project. The delay  means the Snoqualmie Valley Trail near the construction won’t be open until February.

Completion of the work along S.R. 203 near milepost 11.1 was already delayed because of unexpected site challenges. The season’s four flood events have contributed an additional delay of about one month to the project.

Follow-up construction  is planned for several weeks in July and August, which could also affect trail use. To stay apprised of project construction and trail impact information, residents are encouraged to sign up for email notifications at kingcounty.gov/rivers under the link, “Sinnema Quaale Project.”

Challenges earlier in the construction season resulted in some cracking and settling in the driving surface of southbound State Route 203. The embankment next to the highway is now more stable and should prevent future closures for emergency repairs.

Located along the Snoqualmie River between Duvall and Carnation, the project includes reconstructing about 750 feet of bank revetment, and rebuilding approximately 1,100 feet of the adjacent trail. The $10 million project is being funded primarily by the King County Flood Control District, with King County Parks providing funding for rebuilding the trail.