Amisigger Road at Hwy 224 Intersection Improvements

County Roads Take Me Home stickerProjects funded through the new Community Road Fund will increase safety, relieve congestion and maintain local roads.

Project description



Updated: Feb. 29, 2024

The intersection of SE Amisigger Road and Hwy 224 (Clackamas Hwy) is an intersection with high volumes of traffic located east of Barton in a rural area, with a stop sign on SE Amisigger Road. Travelers attempting to turn east or west from SE Amisigger Road onto Hwy 224 during peak traffic periods can experience long wait times.  

As part of the project, we analyzed the intersection to determine whether to build a traffic signal or a roundabout. The evaluation determined a two-lane roundabout is less expensive and will be significantly safer.  


To provide a safer environment for all travelers and reduce delays for vehicles on Amisigger Road turning onto Hwy 224.


Design: May 2022 to Fall 2024 
Right of way: Winter 2024 to Fall 2024 
Construction: Spring 2025 to Summer 2026

Traffic impact

Limited impacts this year with survey work and traffic data collection. Single lane closures may be needed during construction. Access to businesses and homes will be maintained during the construction.

Current activities

Design phase


  • Project estimate $5.4 million
  • Funding is provided from Community Road Funds.

Other Resources



The proposed design for a roundabout has two lanes. Our consultants have checked the design of the roundabout for how semi-trucks and other large trucks would be able to navigate through every scenario. There is additional space within the inner circle sloped curb (also called an apron) of the roundabout for large vehicles to use as well.


Roundabouts are safer by design and modeling shows less crashes overall and when they do occur the crashes are much less severe. Because a roundabout’s geometric design requires people to slow down, you would likely be able to drive away from any crash that may occur.

The proposed design for this roundabout has two lanes along Hwy 224, so it’s unlikely traffic would be stopped if a crash were to occur.


The bus stop would need to be relocated, but the exact location is not known yet.

Department Staff
Mike Ward
Project Manager


150 Beavercreek Road Room #325 Oregon City, OR 97045

Office Hours:

Monday to Thursday
8 a.m. to 4 p.m.

Available by phone/email
8 a.m. to 3 p.m.

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