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SR7 - Alder Canyon Emergency Slope Stabilization - Complete October 2013

Project Status - Complete
Map of detour on SR 7
Click on map for larger image.

Finished project.

A landslide in April 2012 resulted in WSDOT crews removing 300 cubic yards of loose rock and material from SR 7. In June of 2012, the roadway was closed after more rocks and debris fell from the hillside above the roadway. The road was re-opened in October 2012 after temporary repairs were made. In July 2013, WSDOT was able to stabilized a five-mile segment of hillside above SR 7, reducing the potential for slide related closures.

How You Benefit
Cross GlyphImproves Safety
The slope stabilization reduces the potential for slide related closures of SR 7 and increases the protection of motorists from rock fall hazards.
Dollar Sign Glyph Economic Incentive
Reduced slides is the primary benefit, but this work also reduces maintenance costs associated with cleaning up fallen rocks as well as avoiding costly repairs to the roadway.

Partnerships & Cooperation


Financial Data for PIN 300744B, 300744F
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $1,701
CWA $0
Total $1,701

Contact Us
Jon Deffenbacher
Project Engineer

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