Navigating the WSDOT culvert replacement construction on SR 104/Ballinger Way
Friday, June 27, 2025
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| Detour route for when SR 104 / Ballinger is closed for construction |
Beginning Monday, June 30, 2025 contractor crews will replace an existing culvert that prevents fish from passing with a 24-foot-wide concrete structure near the SR 104 intersection with 35th Ave NE.
We don't expect traffic control to begin until Monday, July 7, with overnight single-lane closures planned on 35th Ave NE near the intersection with SR 104.
Flaggers will alternate traffic through the work zone from 9pm to 5am.
The most impactful construction will not happen until around Labor Day (but not during the holiday weekend) with a 35-day full closure of SR 104 near 35th Ave NE. A signed detour will guide vehicles, pedestrians and transit around the work zone. We'll share specific dates for this closure when we have them.
The new culvert structure will open 7.5 miles of potential upstream habitat to Chinook, coho, steelhead, sockeye, sea-run cutthroat and resident trout. Crews also will improve habitat within Lyon Creek, which flows from Snohomish County into Lake Washington through Lake Forest Park.
Want to stay informed about this work? Sign up for email updates about the SR 104 Lyon Creek fish passage project.
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6 comments:
35 days is quite fast for the size of the project. I'm impressed!
If this full closure starts after Labor Day, that’s right on top of school starting 9-3. Any thought given to how busses, walking students and drop offs will work under this plan?
Very cool! Will we also get sea lions?
A lot of moola will be made at that 35th speed camera!
Will they fix the potholes on 104? Asking for my car.
WSDOT has said they will not fix Ballinger Way until all the construction is finished - which includes the roundabout the city is putting in.
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