Duvall Slough Bridge #1136B (NE Woodinville-Duvall Road) Re-Deck Project
Construction and five-week-long road closure in summer 2024
Both directions of the Duvall Slough bridge on NE Woodinville-Duvall Road (shown above) will close for bridge deck repairs in summer 2024. Photo: Google Maps.
Status update
Construction on this 5-week-long project will start in summer 2024. NE Woodinville-Duvall Road at Duvall Slough Bridge will close to all traffic during construction. King County is coordinating with WSDOT to minimize traffic delays on the detour route (West Snoqualmie Valley Road and State Route 203).
Overview
The Duvall Slough Bridge is located on NE Woodinville-Duvall Road, east of West Snoqualmie Valley Road. King County will remove the top half-inch of worn-out concrete on the bridge deck and replace it with one-and-a-half inches of new concrete. The project also rebuilds both bridge approaches and repairs two bridge expansion joints. This work will protect and extend the life of the bridge for 30 years or longer.
This project goes to construction in summer 2024. The work requires a five-week-long road construction closure on NE Woodinville-Duvall Road between State Route 203 (Main Street/Carnation-Duvall Road) and West Snoqualmie Valley Road. The road must be closed because the bridge is too narrow to keep a lane open and maintain a safe work area. In addition, there cannot be any vibration from traffic when crews repave the concrete or work on the expansion joints.
A signed detour will be provided. The 7-mile-long detour could add an extra 15 minutes of travel time. We understand this is an inconvenience, please consider planning ahead.
Why this project is needed
More than 10,000 vehicles cross the Duvall Slough Bridge on NE Woodinville-Duvall Road every day. Crews have temporarily closed the bridge to repair potholes and patch up cracked concrete many times over the years. The concrete driving surface is now too damaged to rely on short-term repairs. Overlaying the concrete bridge deck, rebuilding the bridge approaches and improving the bridge expansion joints are critical to keeping this vital east-west corridor open to traffic for years to come.
Project location
The project is located on NE Woodinville-Duvall Road between West Snoqualmie Valley Road NE and West Snoqualmie River Road NE. Larger view PDF 168KB
Five-week traffic detour during construction
NE Woodinville-Duvall Road is among the most heavily used east-west routes in King County. Crews must close the bridge to all traffic, including emergency response vehicles, to have enough room for a safe work zone. The seven-mile-long detour could add an extra 15 minutes to your trip. Travelers should add plenty of extra travel time through the area when this project is under construction.