Barlow Road/Arndt Road Traffic Improvements Plan


Updated: Oct. 18, 2023

Final Report, October 2022 

Traffic levels in Canby have significantly increased as population has grown in the Canby area and the greater region, including the travel time between Canby and  I-5. The county and the City of Canby studied options to reduce travel times between I-5 and Canby.

This project studied possible improvements at the intersections of Barlow Road and Arndt Road, and also Barlow Road and OR 99E. The county determined if an exception to statewide planning goals will be necessary due to farmland impacts. For each option, this project:

  • Estimated benefits, costs, and traffic impacts in the area
  • Identified critical traffic issues
  • Analyzed how the possible tolling of I-205 would change traffic demands in the Canby to I-5 area
  • Identified any farmland impacts that would require a statewide planning goal exception
  • Determined which options merit further study


  • To improve the connection between the west central portion of Clackamas County, including Canby and Mulino, with I-5.
  • Improve the attractiveness of Canby as a business location by reducing the travel time and length between Canby and I-5 to improve the attractiveness of Canby as a business location and reduce greenhouse gas generation.
  • Improve the traffic flow and reduce wait times during peak traffic periods at the intersections of OR 99E/Barlow Road and Arndt Road/Barlow Road.


  • The county began the study in spring 2021 and completed it in fall 2022.


  • Project cost:  $188,173
  • Funding provided from the Community Road Fund


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