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Budget Information

US 12 - W of Porter - Emergency Slope Stabilization

Project status is under construction
US 12 W of Porter Emergency Slope Repair small map See larger map.

US 12 near Porter shortly after slide in January. US 12 at milepost 27 on January 27, 2016 following heavy rains.

US 12 slide near Porter Creek Road.
Crews will reduce the potential for reoccurring slides by removing debris and installing cable netting on the slope.


March 2017

  • The project is now complete.
  • WSDOT would like to thank drivers for their patience during construction.

Why is WSDOT stabilizing a hillside adjacent to US 12 at milepost 27 near Porter in Grays Harbor County?
Heavy rains in late January 2016 caused debris from the hillside at milepost 27 to break loose. The highway was briefly closed while WSDOT geotechnical engineers assessed the stability of the hillside. The highway soon reopened to one alternating lane.

In May, 2016, WSDOT geotechnical engineers re-examined the hillside and determined it was stable enough to reopen the highway to both lanes. As a precaution, WSDOT has continued to monitor the hillside.

Engineers have designed a long-term fix for the hillside which will reduce the potential for slide-related closures at this location.

The End Result
Reducing the potential for slide-related closures of US 12 at milepost 27 will reduce maintenance costs and reduce commuter delays related to slide closures on US 12.

Project Benefits

  • Crews removed material from the hillside above US 12. The project is designed to reduce the potential for slide-related closures at this location.
  • This work will reduce maintenance costs associated with cleaning slide debris off the road every year. 

What is the project timeline?

  • Project awarded to HI Tech Rockfall Construction, Inc. on July, 25, 2016
  • Construction - Sept. 6
  • Completion - Sept. 29

Financial Information

Financial Data for PIN 301207B
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $516
CWA $0
Total $516

Project signage will reflect the cost of construction engineering, project bid award and sales tax.

How can I get more information?
Gaius Sanoy
WSDOT Project Engineer

Claudia Bingham Baker
Communications Manager

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