View entire map This project is located on US 2 at mile post 91.4, about seven miles east of Coles Corner (and 9 miles west of Leavenworth in upper Tumwater Canyon).
View entire photo The demarcations show where the slope needed to be stablized.
Project Facts
- This project is located about 2 miles below the top of Tumwater Canyon.
- Hand scaling, installation of horizontal drains and rock bolts were used to stabilize the slope.
- Pre existing gas tax monies paid for the project.
This Preservation project stabilized a rock slope on US 2 in Tumwater Canyon in western Chelan County.
Why is WSDOT
stabilize a rock slope on US 2?
US 2 runs through the Tumwater Canyon alongside the Wenatchee River. The canyon has several hillsides with unstable rocks and rock slabs. On Jan 5, 2006 a rock fall event occured at this location involving approximately 100 cubic yards of rock and debris (that's ten dump truck loads!) Several of the largest rocks reached the roadway blocking both lanes to traffic for hours. Other nearby slopes from MP 91.2 to 91.5 are programmed for stabilization over the next several years. However, it was determined that this location, MP 91.4, needed to be addressed now. Click here for more information about WSDOT's slope stabilization program.
The End Result
This project improves motorists' safety by reducing the potential for loose rocks to fall onto the roadway.
Project Benefits
- Safety - Stability of this rock slope was increased, providing safer driving conditions on US 2.
What is the project timeline?
Construction began March 31st and was complete in 15 working days, on April 18th, 2008.
Public Involvement
Your thoughts and opinions are important to us. If you have any questions or comments, please let us know. See the contact information below.
Environmental Protection
WSDOT is committed to protecting the environment and makes every effort to assess and minimize any negative impacts from this project. All applicable environmental laws and guidelines were followed.
Please visit the WSDOT Environmental
Services Web site for more information.
Increasing safety is one of our priorities
As one of the primary highway accesses to North Central Washington from the Puget Sound area, maintaining a safe roadway for commercial vehicles and those coming to this tourist dependent region is critical. At the same time, safety during construction is critical and a work zone and traffic safety plan was in place to protect motorists and the construction workers while the work was underway.
Will this project impact tribal resources?
Coordination with the Tribes is ongoing and continued as the project was constructed. WSDOT seeks to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.
Financial Information
This project was advertised for private contractor bids on October 15th, 2007. Three bids were opened on November 15th. Contract #7436 was awarded to the low bidder, L.R.L. Construction Co. for $135,446.00, 7% under the engineering estimate.
This project is funded through the following source:
Pre-Existing Gas Tax - $329,000
Total funding from all sources - $329,000
How can I get more information?
Contact:
Terry Mattson, Consultant Manager Project Engineer
WSDOT North Central Region
P.O. Box 98
Wenatchee, WA 98807
Phone: (509) 667-3000
Email: MattsoT@wsdot.wa.gov
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