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NCR Seal 2007 - Complete August 2007

Project Status - Complete
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 141 miles of 11 state highways in 5 North Central Washington counties were paved. 

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Grinding and patching damaged sections is necessary before the chip seal is applied.

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A layer of "oil" followed by a layer of gravel is compacted to form the chip seal.


Construction began April 23rd and was completed August 10th, 2007.
This roadway preservation project chip sealed 141 miles on 11 state highways in Adams, Chelan, Douglas, Franklin and Okanogan counties.

  • 21 miles of US 2 in Douglas County from Moses Coulee to the SR-17 Jct. near Coulee City.
  • 9 miles of SR 17 in Franklin County from SR 260 Jct. vicinity to Adams County Line.
  • 15 miles of SR 20 in Okanogan County from Winthrop to north of SR 153 Jct. near Twisp.
  • 11 miles of SR 26 in Adams County from Grant County Line to SR 17 Jct. near Othello.
  • 18 miles of US 97 in Chelan and Okanogan Counties from SR 150 Jct. near Chelan to Pateros.
  • 22 miles of US 97 in Okanogan County from SR 17 Jct. near Brewster to Okanogan.
  • 3 1/2 miles of US 97A in Chelan County from Chelan to US 97 Jct.
  • 2 miles of SR 150 in Chelan County from Chelan to US 97 Jct.
  • 8 miles of SR 153 in Okanogan County from Pateros to near Methow.
  • 17 miles of SR 172 in Douglas County from west of Mansfield to SR 17 Jct.
  • 0.3 miles of SR 213 in Okanogan County from US 97 Jct. to Malott.
  • 15 miles of SR 971 in Chelan County from SR 97A Jct. north of Entiat to SR 97A Jct. near Chelan.

How You Benefit
Cross GlyphImproves Safety
The chip sealing process increases traction and skid resistance. It fills cracks and raveled surfaces, providing a smoother, safer ride. It also provides an anti-glare surface when wet and increases reflectivity at night.  Fresh striping and new signage also improves safety.
Leaf Glyph Protects Environment
An Environmental Review Summary was signed August 23rd, 2006 under terms of the National Environmental Policy Act, permitting the project.
The followings are the permits and/or project documentation required:

BA - Biological Assessment.
NEPA (CE) - National Environmental Policy Act of 1969.
SEPA (CE) - State Environmental Policy Act of 1971.
Temporary Erosion Control Plan.
Section 106 - Tribal Consultation
Dollar Sign Glyph Economic Incentive
This project extends pavement life on 141 miles of state highway by providing a waterproof layer protecting the underlying pavement structure.

Partnerships & Cooperation
A project to construct new channelization at the junction of Thacker Road and SR 26, near Othello in Adams County was included in the chip seal contract to reduce costs and deliver it a year early.


This project was advertised for private contractor bids in November, 2006. Two qualified bids were opened on December 14th. A $4,294,543.10 contract was awarded to Central Washington Asphalt, Inc. on December 18th, 2006.
This project was funded through the following sources:

  • Pre-Existing Gas Tax - $6.3 million
  • Total funding from all sources - $6.3 million

Contact Us
Project Engineer: Bob Romine
WSDOT North Central Region Project Office
P.O. Box 98
Wenatchee WA 98807
Phone: 509-667-2880,
or toll-free 1-800-461-8816

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