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SR 6 - South Fork Chehalis River Bridge Replacement - Complete September 2009

Project Status - Complete

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Previous So. Fork Bridge
The old SR 6 South Fork Chehalis River Bridge was only 22 feet wide, too narrow for the size and volume of traffic today.

New So. Fork Bridge
At 40 feet wide, the new bridge provides plenty of room and increases safety for freight and passenger vehicles alike.

The South Fork Chehalis River Bridge was originally built in 1925. The old bridge structure over the South Fork of the Chehalis River was only 22 feet wide – too narrow for large vehicles to safely cross the bridge at the same time. When large vehicles needed to cross the bridge from opposite directions, they stopped and waited for an opening. Due to stopped vehicles, rear-end collisions were common at this location, resulting in a designation as a High Accident Location.

This project replaced the narrow South Fork Chehalis River Bridge on SR 6 in Lewis County with a new, 40-foot-wide structure. The new structure consists of two 12 foot lanes with 8 foot shoulders. The replacement bridge allows large vehicles approaching in opposite directions to safely cross at the same time. The new bridge is 40 feet wide; 14 feet wider than the previous structure. Replacing the bridge decreased the likelihood of rear-end collisions.

How You Benefit
Cross GlyphImproves Safety
Replacing the existing bridge reduced the likelihood of rear-end accidents from vehicles slowing down or stopping on the roadway waiting to cross the bridge.
Car GlyphRelieves Congestion
This project provides a wider structure for motorists. This allows traffic to flow smoothly across the bridge without delay.

Partnerships & Cooperation
Your thoughts and opinions are important to us. An open house for this project was held in the fall of 2007. Advance notification about public involvement opportunities were sent out to area residents, businesses and local media, and posted on this Web page.

For the more information about public involvement opportunities for other WSDOT projects in Southwest Washington, visit the Southwest Region Public Involvement page.


This $10 million project was funded by the 2005 Transportation Partnership Account.

Contact Us
Area Engineer Colin Newell
WSDOT Chehalis Project Office
1411 Rush Road
Chehalis, WA 98532
Phone: 360-740-8600, or toll-free 1-866-713-2412


WSDOT Southwest Region
PO Box 1709
Vancouver, WA 98668-1709
Phone: 360-905-2058

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