Skip Top Navigation

SR 4 - Four Miles East of Cathlamet - Rock Scaling - Complete June 2011

This project was complete in June 2011, and improved safety on State Route 4 just east of Cathlamet (milepost 39) in Wahkiakum County.

Maintenance records and geotechnical investigations determined that rock fall prevention was necessary at this location to reduce the risk of rocks falling onto the highway and protect the traveling public.

Throughout the project, crews removed loose rock, unstable soil, trees and other debris from the slope above the roadway.

How You Benefit
Cross GlyphImproves Safety
This stretch of State Route 4 often succumbs to weather-related slides, compromising safety and spurring costly repairs. This project helped reduce both.

Partnerships & Cooperation
WSDOT makes every effort to assess and minimize environmental impacts from our projects. A detailed analysis of the project’s environmental impacts was completed as part of the environmental documentation and environmental permitting processes.

For environmental information specific to this project, please contact Barb Aberle at (360) 905-2186, or e-mail


Total project funding: $340,000 (pre-existing funds)

Contact Us
Area Engineer Denys Tak
WSDOT Kelso Area Engineering Office
2400 Talley Way
Kelso, WA 98626
Phone: 360-442-1341, or toll free 1-800-545-1393


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

back to top