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The West Sammamish River Bridge was constructed in the 1930s and is nearing the end of its engineered life. To ensure the long-term safety of our community, the City of Kenmore is replacing this structure.
This project will replace the existing southbound bridge across the Sammamish River and include the construction of new sidewalk and bike facilities on the west side of the road between NE 170th St and NE 175th St. The West Sammamish River Bridge Replacement Project will also include new signals at NE 170th St and NE 175th St, new streetlighting, utility undergrounding and new landscaping.
Construction started in March 2020 and will be completed in late 2022.
Current construction activity:
Construction continues under the category of “construction of critical or strategic infrastructure” in Governor Inslee’s recent proclamation.
In response to the COVID-19 impacts on our community, City Hall remains closed to comply with the Public Health – Seattle & King County recommendations and the “Stay Home, Stay Healthy” order from the Governor’s office.
The speed limit has been reduced to 25 MPH throughout the work zone for the safety of both the public and the construction team.
- This speed limit applies 24/7 and will be enforced by the Kenmore Police Department.
- If you see vehicles speeding through the work zone, please contact the City of Kenmore Police Department’s non-emergency phone line at 206-296-3311.
- Additional speed limit signange and speed feedback signs have been posted in the in the construction zone.
The Department of Fish and Wildlife reopened the Kenmore Boat Launch on May 5.
- Construction on the West Sammamish River Bridge may limit parking at the boat launch. Please be prepared for crowds, possible waits, and general changes to what you may be used to.
- The WA Department of Fish and Wildlife manages the boat launch; for more information visit: https://wdfw.wa.gov/about/covid-19-updates
- Intermittent southbound single lane closures Monday through Friday between 9 a.m. and 3 p.m. to accommodate construction.
- Traffic safety:
- Please drive safely and be aware of bikes sharing the roadway, as well as construction crews nearby.
- If you are using your bicycle to cross the bridge and do not feel comfortable sharing the roadway, please dismount and walk your bicycle across the bridge on the sidewalk.
- Pedestrian traffic has been shifted exclusively to the sidewalk on the east bridge.
- Trees on the west side of the bridge have been removed to make room for a crawler crane. Erosion control measures are being installed per permit requirements.
- Dirt and dust may be present as clearing and grubbing of trees and bushes continues.
- Upon the project’s completion, established trees will be replanted.
- King County Metro changes:
- Metro’s route 225 has replaced service for routes 234 and 244.
- Four bus stops in the work zone (two stops south of NE 175th St and two stops north of NE 170th St) will be relocated for the duration of the project.
- For more information about bus service, visit King County Metro’s website.
General construction activity overview:
- Construction is expected to last until Fall 2022.
- Pedestrian access will be restricted to the east side of 68th Ave NE for most of the construction period. Cars will need to share the lane with bicyclists.
- Boat traffic underneath the bridge will temporarily be closed for 15-minute periods in coordination with the U.S. Coast Guard during in-water work. During popular community events, such as Seafair, the City will continue to work with the U.S. Coast Guard to determine how to best accommodate access.
- Nighttime access under the bridge may be restricted for up to 10 hours at a time during the summer months (fish windows; see "Why will it take three years to build the new bridge?" FAQ).
- During the months of July and August of 2020, 2021, 2022 and periodically at other times throughout the year, the parking stalls on the east side of the boat launch lot (the east half of the Dept. of Fish and Wildlife-managed lot on the west side of 68th) will be used for construction and unavailable for parking. Vehicles and trailers will need to park in the available right-of-way on 68th Ave NE and NE 175th St, west of 68th.
- The access road under the bridge that connects the Kenmore Boat Launch and Rhododendron Park will be closed until Fall 2022.
- Bus stop locations will be moved to avoid conflicts with construction. Temporary stops will be located relatively close to their existing locations. After construction, permanent bus stop locations will be changing. Please contact the project to learn more about these future locations.
- Several lanes of traffic may be closed at any given moment. Attempts will be made to restrict any lane closure Monday through Friday between 9 a.m. and 3 p.m. Sign up for email updates to receive information about known upcoming closures or visit this page to find updates.
- When closure of all southbound lanes on the existing bridge is required, southbound traffic will be rerouted to the northbound bridge with one lane operating in each direction. This will likely only occur during the night hours between 6 p.m. and 6 a.m. However, there may be times during non-peak hours where this situation is unavoidable.