View entire map This slope above US 97 at MP 176.8 is 13 miles north of Blewett Pass and 8 miles south of the Big Y junction with US 2 in Chelan County.
View entire photo Unstable rock breaks loose and sometimes lands on the roadway creating a safety hazard.
Project Complete September 2009
This Highway Capital Preservation Program project stabilized an unstable slope above US 97 north of Blewett Pass in Chelan County.
Why is WSDOT
stabilizing this slope?
Our Geotechnical Services Division performed an analysis of this slope at the request of our North Central Region Maintenance staff after a June 10, 2006 rockfall. This is one of two adjacent areas that are being stabilized. It was identified for stabilization in the WSDOT Unstable Slope Management Program (pdf). Our technicians evaluate such factors as catchment area, frequency of slope failures (rock fall incidents), and how often the driving lanes were impeded.
The End Result
is improved safety by reducing the potential for loose rocks to fall onto the roadway.
Project Benefits
In addition to the safety benefit of reducing potential rock fall on the highway, maintenance costs, cleaning up fallen rock and repairing pavement damage, is also reduced.
What is the project timeline?
Construction began July 27, 2009 and was complete September 18, 2009.
Financial Information
This project was advertised for private contractor bids on September 29th, 2008. 5 qualified bids were opened on October 23rd. Contract #7620 was awarded on October 27th to HI TECH Rockfall Construction, Inc. for $587,716.00, 20% under the engineering estimate.
This project is funded through the following source:
Pre-Existing Gas Tax - $354,521
How can I get more information?
Contact:
Kevin Waligorski, Project Engineer
WSDOT North Central Region
1551 N. Wenatchee Ave.
P.O. Box 98
Wenatchee, WA 98807-0098
Phone: (509) 667-2860 or toll free (888) 461-8816
E-mail: waligok@wsdot.wa.gov
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