- Contractor crews are now placing permanent striping. The striping work is scheduled to be complete by mid-October. Heavy rain prevented crews from completing the work in September as originally planned.
- For noise concerns, please call 206-440-4DOT (4368).
- For lane and ramp closures related to this project, check the King County construction update report for SR 520.
- This project is scheduled to be complete in fall 2014.
- Sign up to receive email updates about this project and other East King County topics.
We are repaving about three miles of State Route 520 in sections between 108th Avenue Northeast and West Lake Sammamish Parkway.
This project also will repave four bridges, 10 ramps, replace bridge joints, place new pavement markings, and electronic vehicle detection equipment.
Why is WSDOT
repaving SR 520 between 108th Avenue Northeast and West Lake Sammamish Parkway?
Sections of SR 520, as well as 10 ramps that connect to the highway, are in need of repairs. Most of these sections and ramps were last paved 15 to 20 years ago. They now have ruts and cracks from carrying up to 100,000 vehicles every day. Contractor crews will grind down and repave these areas with asphalt to create a smoother, long-lasting surface. This work will reduce annual repair and maintenance costs.
The End Result
Repaving these segments of SR 520 extend the useful life of the pavement and increase safety for the more than 100,000 drivers who use this part of SR 520 every day.
- This project will extend the life of the highway and reduce annual maintenance costs.
- Drivers will have a smoother ride.
What is the project timeline?
- March 2014: Project was advertised for competitive bid.
- April 15, 2014: The project was awarded to Granite Construction Company.
- Construction began June 30, 2014.
- Fall 2014: We expect to complete construction.
|Financial Data for PIN 152028E, 852028E
||Amount ($ in thousands)
|2003 Gas Tax (Nickel Funding)
|2005 Gas Tax (TPA)
|Pre-Existing Funds (PEF)
Project signage will reflect the cost of construction engineering, project bid award and sales tax.
How can I get more information?
WSDOT project engineer
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