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2005 Partnership Funding
Funded in part by the 2005 Transportation Partnership Project Program.

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  Northwest Region

I-5 - Smokey Point: 172nd St. NE (SR 531) Interchange Modifications & SR 531 Safety Improvements - Complete June 2006

Project Status - Complete
Project location map: At the Interstate 5 and 172nd Street interchange in Arlington  View entire map

A new bridge at the I-5 interchange with 172nd St. NE improves safety and traffic flow.  

The Smokey Point Bridge is located near the City of Arlington in Snohomish County. A two-lane bridge over I-5 was replaced with a  six-lane bridge. A bike lane and pedestrian walkway on SR 531 improves safety.

How You Benefit
Cross GlyphImproves Safety
More lanes, a wider bridge, improved lighting and signals, and traffic curb will improve safety by reducing congestion and controlling left turns.  A bike lane and walkway on SR 531 improves safety for bicyclists and pedestrians.
Car GlyphRelieves Congestion
The wider bridge and new turn lanes are reducing congestion.

Partnerships & Cooperation
The Tulalip Tribe was one of WSDOT's funding partners in this project. The Tulalip, Stillaguamish, Samish, and Kikiallus Tribes were consulted in November 2002 regarding this project, and a Cultural Resource Survey was prepared. In March 2003, that survey was distributed to these Tribes with a request to review and comment on its contents. After 30 days, the survey was forwarded to the State Historic Preservation Officer (SHPO) who concurred with WSDOT's findings and recommendations--that no tribal resources would be affected by the project--in late April 2003.

This project is funded through the following fund sources:

  • Existing Funds - $4,200,000
  • Other Agency Funds - $4,948,000
    Washington State Transportation Improvement Board ($3.7 million), City of Arlington ($1.2 million), Developer Fees ($48,000) 
  • Total Funding Available From All Sources - $9,148,000

Contact Us
WSDOT Construction Engineer  Amir Ahmadi
(Interim Project)
9029 El Capitan Way
Everett, WA  98208-3637
Phone: (425) 225-8725
E-mail: Ahmadi@wsdot.wa.gov


Public Information Officer Travis Phelps
15700 Dayton Avenue North 
PO Box 330310, MS: 103
Seattle, WA 98133
Phone: (206) 440-4470
E-mail: PhelpsT@wsdot.wa.gov

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