SR 506 - Lacamas Creek Bridge Replacement

Project news

In spring 2019, Washington State Department of Transportation contractors will begin work to replace the existing, aging State Route 506 - Lacamas Creek Bridge near Vader, in Lewis County.

Needs & benefits

Originally built in 1951, the Lacamas Creek Bridge in an important connection along SR 506, between Vader and I-5.

Over time and with wear and tear, the existing timber bridge has become structurally deficient and functionally obsolete. This project will restore the structural integrity of the bridge, and improve the overall mobility of the route.

When construction begins, both directions of SR 506 will be closed between mileposts 8.0 - 8.19 (Telegraph Road and the end of the Lacamas Creek Bridge). Travelers between Vader and I-5 will follow a signed detour, using South Military Road and SR 505.

The bridge closure will remain in place until construction of the new bridge is complete.

  • Safety - The new concrete bridge will replace the existing structure, and will meet current bridge safety and functionality standards.
  • Mobility - The Lacamas Creek Bridge will be widened with improved bike and pedestrian access, ensuring people of all abilities are connected. 


  • Spring 2019: Project goes to competitive bid
  • Summer 2019: Construction scheduled to begin
  • Winter 2019: Construction scheduled for completion 


This project is estimated to cost $4,000,000 


Colin Newell
WSDOT Project Engineer

Celeste Dimichina
WSDOT Communications

SR 506 - Lacamas Creek Bridge Replacement project location map