Regional Traffic Signal Upgrades

Replace 99 traffic signal controllers at 99 intersections with upgraded equipment in unincorporated Clackamas County and areas within City of Lake Oswego, Wilsonville, Oregon City, Milwaukie, Gladstone, and West Linn. 


Project in planning phase.

Updated: June 16, 2022

The new controllers will allow for improved timing at intersections and to use performance data tracking that will inform future changes of the traffic signal. The upgraded traffic signal controllers will connect with the region's central signal system. The central signal system allows agency engineers to monitor operations, making changes in real-time, and receive alerts and information to better inform signal operations and repairs. 

These upgrades are a regional priority supported by TransPort, a group that makes recommendations on transportation system management and operations needs in the region to the Metro’s Transportation Policy Alternatives Committee. The project is supported by Metro's Transportation System Management and Operations Program


To increase reliability of traffic signal system, improve travel times and increase safety for all modes of travel at intersections.


The county is expected to begin the design phase in July 2022. Installation of traffic signal controllers to start winter 2023. The project is expected to be complete by winter 2023.

Traffic impacts

Minor and intermittent lane closures for traffic signal upgrades will be needed.

Current activities

  • Project planning


  • Project estimate $820,103
  • Funding is provided from Metro’s Transportation System Management and Operations Grant, and matches from the county road fund and from local cities including Gladstone, Lake Oswego, Milwaukie, Oregon City, West Linn and Wilsonville. 
Department Staff
Carl Olson


150 Beavercreek Road Room #325 Oregon City, OR 97045

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