NE Lake Joy Road Culvert Replacement Project
Up to six daytime full road closures in August and September
Monday, July 26, 2021
Construction is underway and will last through early fall 2021. Portable traffic signals at both ends of the construction zone are in place to regulate traffic through the active construction zone. This traffic light allows several vehicles through at a time.
Full road closures: There will be up to six (6) temporary full road closures on this project. The first two are currently planned for Aug. 9 and 10. These dates are subject to change. Check this webpage, the MyCommute website and portable message signs at the project site for the latest information.
Two more will occur in late August or September; the final two (if needed) will happen before October. Each closure will last up to four (4) hours long, from 10 a.m. to 2 p.m. Emergency services, such as Fire, Aid and Sheriff will be maintained during each closure.
No vehicles, bicycles or pedestrians will be allowed past the construction zone when the road is closed. We will post closure notification signs at least one week in advance of all full closures. Please plan accordingly.
On this page
- Status update
- Project description
- Why is King County doing this project?
- What to expect during construction
- Frequently asked questions
Contact usBroch Bender, Communications Manager
Follow us on Twitter
Find us on Facebook
This project replaces an existing 4-foot-round diameter underground metal pipe culvert with a new, 14-foot-wide, eight-foot-high concrete box culvert. The existing corrugated metal culvert is rusting and has outlived its useful life. The larger concrete culvert will help prevent flooding and improve fish passage under NE Lake Joy Road by simulating natural stream conditions.
Why is King County doing this project?
The existing round culvert pipe is failing. It is old and worn out. If the pipe is not replaced, flood water and debris could exceed the capacity of the existing culvert and cause road damage or worse, it could wash the road away completely.
In addition, the existing metal culvert does not meet current design standards for flood control and healthy fish passage. Healthy fish passage requires a culvert that is large enough to handle swift water during storm events. The culvert also must be able to hold enough water during the dry season for fish to swim through.
The new, wider culvert will be built to modern standards It will help prevent flooding and allow fish to migrate freely upstream or downstream with minimal impact.
What to expect during construction
Construction work is expected to last up to 10 weeks.
To do this work, King County must remove a section of NE Lake Joy Road to take out the old, worn out pipe, install the new culvert, and repave the road. Traffic will be diverted onto a temporary bypass lane adjacent to the work zone. The surface of the temporary bypass lane will be made of gravel, and may be uneven in parts. Motorcycles, bicycles and pedestrians should use extra care when using the gravel road. In addition, the temporary bypass lane will be 11-feet wide, and a traffic signal will only allow only one vehicle on the road at a time.