I-5 - SB Toutle River Bridge - Expansion Joint, Deck Repair and Overlay

Project news

In summer 2019, Washington State Department of Transportation contractors, M.J. Hughes Construction, Inc., will begin work to resurface the bridge deck along the southbound span of the Toutle River Bridge between mileposts 51.48 and 51.95, on Interstate 5, just north of Castle Rock, in Cowlitz County.   

Originally built in 1969, the Toutle River Bridge deck surface is showing it's age and is in need of repair. Over time, a combination of heavy traffic and weather conditions have caused the bridge deck surface to deteriorate, causing cracks and rutting in the pavement. Resurfacing work will preserve the integrity of the bridge deck, extend the life of the bridge, and provide a smooth and safe connection for all travelers along I-5.  

Needs & benefits

  • Preservation: Resurfacing the bridge deck and replacing the expansion joints will preserve the roadway's structural integrity and prolong the life of the bridge.
  • Economic: This project will help to maintain the vital transportation connection along I-5, for all travelers. 
  • Safety: Resurfacing the bridge and replacing the expansion joints provides a smoother, safer ride for all travelers. 


  • Spring 2019: Project was awarded to M.J. Hughes Construction, Inc. 
  • Summer 2019: Construction scheduled to begin 
  • Fall 2019: Construction scheduled for completion 

What can travelers expect 

During construction, a single-lane of traffic will be closed, around-the-clock, and the speed limit will be reduced to 55 mph, for the duration of the project. Travelers should also expect intermittent, nighttime, double lane and ramp closures as needed.

For safety, bicyclists will follow a signed detour route along local roads, until construction is complete. 


The estimated cost of this project is $1.8 mil. 


Colin Newell
WSDOT Project Engineer

Celeste Dimichina
WSDOT Communications

I-5 - SB - Toutle River Bridge - Expansion Joint, Deck Repair and Overlay - project map