Project overview
This summer, contractor crews will repair pavement, replace guardrails and median barriers, and make repairs to both directions of Interstate 5 between the Lewis-Cowlitz county line (milepost 56.10) and State Route 505 (milepost 64) in Lewis County.
Once complete, this stretch of I-5 will be smoother, safer and more reliable for all travelers.
What to expect
When construction begins this summer, travelers can expect nighttime single-lane and ramp closures to support paving work in the area. The project is scheduled for completion this fall, providing a smoother ride and improved lane visibility on I-5.
This section of I-5 carries more than 42,000 vehicles each day and was originally built in the 1950s. A northbound lane for trucks between Exits 59 and 60 was added in 1979.
Just north of milepost 59, I-5 crosses the Cowlitz River, and near Exit 60, it crosses Lacamas Creek. The bridges over both waterways were built in 1953, with the Lacamas Creek Bridge later widened in 1976.