SR 433 - Lewis and Clark Bridge Painter - Completed 2014

This project cleaned and paint the steel framework of the SR 433 Lewis and Clark Bridge. The fresh coat of paint will help prevent future corrosion to the steel, preserve the bridge’s structural integrity, and prolong the life of the bridge.

Originally built in 1929, the 82-year-old, one-mile long Lewis and Clark Bridge is a historic landmark and vital transportation connection for Washington and Oregon. The bridge carries an average of 21,000 vehicles per day, 13 percent of which are trucks.

The Lewis and Clark Bridge was last painted in 1984. Since then, the protective coating on the bridge has deteriorated, exposing the steel to the weather and elements, which has resulted in rust and corrosion. Painting this historic bridge will preserve and restore the bridge’s structural integrity and protect the steel from future corrosion.


How you benefit

Improves safety
This project helps prevent future corrosion, and preserves the bridge’s structural integrity.

Economic incentive
This project preserves a vital bi-state transportation connection, allowing it to continue handling commuter and heavy freight traffic for years to come.

Partnerships & cooperation
As stipulated in Washington and Oregon's Border Bridges Agreement, construction and maintenance costs for the Lewis and Clark Bridge are shared equally by the two states. WSDOT is the lead agency for this project and manages its delivery with funding and design coordination from the Oregon Department of Transportation (ODOT).


The Lewis and Clark Bridge was painted in three phases:

Phase 1: cleaned and painted the Oregon approach of the bridge structure, and was completed in February 2008.

Phase 2:

  • Pre-existing funds: $6.7 million
  • Total estimated cost of Phase 2: $6.7 million

Phase 3:

  • Pre-existing funds: $27.7 million
  • 2009 American Recovery and Reinvestment Act (ARRA): $12.3 million
  • Total estimated cost of Phase 3: $40 million

Contact us
Lori Figone
WSDOT Kelso Area Engineering Office
2400 Talley Way
Kelso, WA 98626
Phone: 360-442-1341, or toll free 1-800-545-1393


Bart Treece
WSDOT Communications
11018 NE 51st Circle
Vancouver, WA 98682
Phone: 360-905-2058