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US 101 - Astoria Bridge to SR 4 Paving - Complete June 2008

Paving and safety improvements have been made to US 101, SR 4 and SR 401 in Pacific and Wahkiakum counties.

US 101 was paved from the Astoria Bridge to the intersection of SR 4. The paving began at the Astoria Bridge in Pacific County, (MP 0.44) continued north west through the town of Chinook, and then proceeded through Illwaco until intersecting with SR 100. After intersecting with SR 100, paving continued east to the US 101 by-pass before traveling north and ending at SR 4.

This section of US 101 was in need of paving to repair the deteriorating pavement. The pavement was beyond its useful life span. Deteriorating pavement is likely to crack and develop ruts, causing an unsafe driving surface for motorists.

Just over 12 miles of SR 401 was resurfaced in Pacific County.

Improvements were made to nearly five miles of pavement along SR 4 in Wahkiakum County.
Improvements included resurfacing the pavement, replacing guardrail and signs where needed, and pavement work.

Signals were replaced and installed on US 101.
The previous signal at the intersection of US 101 and SR 100 in Ilwaco was replaced. A new signal has been installed at the intersection of US Highway 101 and Sandridge road.

Other improvements have been made through this project such as replacing guardrail, restoring pavement markings and replacing signs.

How You Benefit
Cross GlyphImproves Safety
Improves driver safety by eliminating cracks, potholes, and rough patches, restoring pavement markings, and provides a consistent driving surface. These improvements also included replacing non-standard guardrail, restoring pavement markings and replacing signs.
Dollar Sign Glyph Economic Incentive
Provides a smoother ride for drivers and extends the life of the pavement, creating cost-savings and minimizing necessary maintenance in the years to come.

Partnerships & Cooperation
Your thoughts and opinions are important to us. For the more information about public involvement opportunities for WSDOT projects in Southwest Washington, visit the SW Region's Public Involvement page.

WSDOT makes every effort to assess and minimize environmental impacts from our projects. A detailed analysis of the project’s environmental impacts has been completed, and, if necessary, an appropriate plan for mitigation will be developed and documented as part of the environmental documentation and environmental permitting processes. The Biological Assessment (BA) was completed in August 2006, and the State Environmental Policy Act (SEPA) Assessment was completed April 2002. Additional information will be posted on this Web page as the environmental work progresses.

For environmental information specific to this project, please contact Erin Gardner at (360) 905-2185, or e-mail

At WSDOT we seek 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.

This process is not applicable because the project does not impact tribal lands.

For more information visit our WSDOT Tribal Liaison website.


  • Federal funds – $6.2 million
  • State Motor Vehicle Account – $426,000
  • Total Funding Available – $6.6 Million

Contact Us

Area Engineer Leon Winger
WSDOT Vancouver Area Office
PO Box 1709
Vancouver, WA 98668-1709
Phone: 360-905-1500


WSDOT Southwest Region
PO Box 1709
Vancouver, WA 98668-1709
Phone: 360-905-2058

or access our project feedback form.

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