Wilsonville: I5 Interchange


Improvements to Wilsonville Road at the I-5 interchange were necessary to meet traffic concurrency requirements in Wilsonville and allow continued development activity. Specifically, this project was necessary for the redevelopment of the former Dammasch State Hospital into a new mixeduse development with over 2,300 residential units, the expansion of a Coca-Cola bottling facility, and the development of a new Fred Meyer retail center.

This project, which was completed in 2012, also included bike and pedestrian safety improvements and artistic enhancements. Wilsonville K-12 students participated in a year-long project to design and produce a tile mural that was installed under I-5 next to a new pedestrian pathway.


  • The total project cost was$21 million
  • Urban renewal contributed $12 million.
  • Other funding, including ODOT match and SDCs, was $9 million

Community Benefits

  • Over 2,300 new housing units
  • 1,892% growth in URA Assessed Value from 2003 to 2015
  • Private redevelopment of approximately 220-acres of publicly-owned property
  • Development of a Fred Meyer retail center
  • Job creation due to the expansion of a Coca-Cola bottling facility
  • Improved traffic flow
  • Improved safety and connectivity for pedestrians and cyclists

Download Project PDF