SR 6 - Chehalis River Adna Bridge – Replace Expansion Joints - Complete November 2018

Project news

Why did WSDOT resurface the highway and repair the bridge?

Paved over 38 years ago, the Chehalis River Adna Bridge deck surface was nearing the end of its useful life and was in need of repair.

Beginning summer 2018, contractor crews working for the Washington State Department of Transportation ground off the existing asphalt, replacing the expansion joints and resealing the original existing textured concrete bridge deck on the SR 6 Chehalis River Adna Bridge. This work extends the life of this vital infrastructure connection, which sees approx. 6,600 vehicles per day. 

Expansion joints create a smoother surface for drivers by allowing bridges to expand and contract with changing weather. The bridge joints on the SR 6 Chehalis River Adna Bridge were aging and worn. WSDOT maintenance crews had repaired these joints repeatedly over the years, but they had finally reached a point where they needed to be replaced.

Needs & Benefits

  • Preservation: Resealing the original concrete bridge deck and replacing the expansion joints extends the life of the bridge.
  • Economic: This project helps maintain a vital transportation connection, allowing the bridge to continue handling traffic for years to come.
  • Safety: Resealing the bridge deck and replacing the expansion joints creates a safer, smoother ride for travelers.


  • Spring 2018: Contract was awarded to Conway Construction on June 18, 2018
  • Summer 2018: Construction was scheduled to begin
  • Fall 2018: Project was completed


The estimated final cost of this project is $543,190


Colin Newell
Project Engineer

Celeste Dimichina

SR 6 - Chehalis River Adna Bridge - Replace Expansion Joints - project map