SR 107 - Chehalis River Bridge - Structure Rehabilitation

Project news

Why is WSDOT rehabilitating the SR 107 Chehalis River Bridge?
The 1958 SR 107 Chehalis River Bridge located south of Montesano in Grays Harbor county is in need of repairs. This project will replace the timber on the south approach to the bridge, install modern safety rails, and paint the steel structure on the bridge.

The End Result
A rehabilitated SR 107 Chehalis River Bridge will reduce maintenance costs and bring the south end of the bridge approach up to current standards. New paint will help preserve and protect the bridge against corrosion.

Needs & benefits

  • Reduce maintenance frequency and costs by replacing the deteriorated timber approach trestle with a concrete structure.
  • Reduces severity of collisions by installing modern traffic barriers and guardrail.
  • Preserves the steel trestle by painting.


  • Fall 2016: Finalize structure rehabilitation plan
  • September 13, 2016 Open House: Display Boards (pdf 1 MB) Invitation (pdf 238 kb)
  • Spring 2019: Advertise construction contract for competitive bidding
  • Feb. 1, 2019: Contract awarded to Rognlin's, Inc.
  • April 29: Temporary speed limit reduction signs installed
  • Summer 2019: Construction begins
  • Winter 2020: Project complete


Financial Data for PIN 310702B, 310705B
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $0
CWA $25,164
Total $25,164


Karen Boone
WSDOT Project Engineer

Tina Werner
WSDOT Communications