Project overview
To ensure smooth travel for both commuters and cargo across Washington State, contractor crews will implement an advanced technology system. This system optimizes the existing roadway infrastructure to alleviate congestion, enhance safety, and ensure reliable trips along the I-5 corridor in Lewis County, between milepost 75.45 in Chehalis to milepost 82.80 in Centralia.
What to expect
Once construction starts, contractor crews will install ramp meters along the following on-ramps leading to I-5:
- Northbound ramp meters:
- 13th Street/Southwest Parkland Drive
- SR 6
- Chamber of Commerce Way
- Southbound ramp meters:
- SR 6
- Chamber of Commerce Way
- Harrison Avenue
- Mellen Street
Additionally, during construction, crews will install variable message signs (VMS), traffic cameras and data station system to improve travel along this nearly 7.5 mile stretch of I-5.
What can travelers expect
Travelers in both directions of I-5 can expect occasional daytime and nighttime single lane and ramp closures, with delays of up to 20 minutes. Please note, to minimize traffic impacts and delays, no two consecutive on-ramps, off-ramps, or intersections shall be closed at the same time and in the same direction, and only one ramp at an interchange shall be closed at a time.
While full ramp closures may be necessary, advanced public notice will be provided before implementing these closures.
This project will focus on reducing congestion, and improving safety and travel reliability along the I-5 corridor between Chehalis and Centralia, in Lewis County.
