Project overview
During summer 2025, contractor crews will repave an 11-mile stretch of northbound and southbound I-5 between Koontz Road (milepost 69.44) and the SR 507 interchange (milepost 81) in Lewis County.
This project will repair worn pavement on northbound and southbound I-5 from milepost 69.40 to 80.75 by removing old asphalt and replacing it with new pavement. Work includes grinding and paving all travel and auxiliary lanes, repairing five bridges, fixing guardrails, sinkholes, and drainage, and replacing bridge membranes, expansion joints, and compression seals. Some temporary ramp and shoulder closures may be needed.
What to expect
During construction, travelers on I-5 in both directions will see a mix of daytime and nighttime lane closures, reduced speeds, and occasional rolling slowdowns—especially near bridges. Work includes grinding and paving, bridge membrane and expansion joint repairs, pavement and guardrail repairs, sinkhole and drainage fixes, and replacing compression seals. Temporary ramp and shoulder closures may also be needed.
WSDOT is committed to keeping traffic moving while making these important improvements. We know construction delays can be frustrating, but this work will make the highway safer, more reliable, and less likely to need emergency repairs—extending its lifespan for many years.
During summer 2025 contractor crews working for WSDOT will work to repair the driving surface along an 11-mile stretch of I-5 in Lewis County, between Koontz Road and the SR 507 interchange.