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OR 213: South Union Mills

Project Completed

Region 1: Portland metro and Hood River County (Molalla, Clackamas)

We constructied a project to improve safety on Oregon 213 (also known as Cascade Highway South) by leveling out the crest of the hill to increase drivers' ability to see oncoming and turning cars at South Union Mills. ​​​


Traffic Impact

October 26, 2018 update:
This project is complete. No additional impacts are expected. 

Construction Impacts

Those living or working closest to the project may experience nighttime noise. A 24-hour noise hotline is available for after-hours noise complaints at 503-412-2322. ​


​​Design is complete.
Construction is complete.

Winter 2017-2018
  • Utility companies will be on site relocating utilities. The contractor will also prepare the site for construction. (complete)
  • Tree removal will take place before Jan. 15, 2018, to avoid impacts to nesting birds and keep the project on schedule. Tree removal will impact traffic on South Union Mills. (complete)
  • Clackamas County will pave a section of South Union Mills. (complete)
Spring through fall 2018
  • The majority of construction activities will begin in the spring and continue through 2018. (March through fall 2018)



OR 213 | ​(Cascade Highway S.) at South Union Mills Road

Cost and Funding

Project cost: $1,933,413


This project: 
  • Leveled out the crest on OR 213 to improve visibility by raising the slant of the highway. 
  • Added a standard right-turn lane and shoulder on South Union Mills to separate left and right turn movements. 
  • Added a two-stage turn for westbound Union Mills to turn onto OR 213, which allows cars to move into the turning lane on OR 213 before entering southbound traffic. 
  • Paved a section of OR 213 and South Union Mills Road.
  • Installed new traffic signs. 
  • Constructed mountable curbs along properties at the intersection to divert storm water.

What Problem Will This Improve?

Unsafe driver speeds and limited visibility (because of the hill crest) on OR 213 make it hard for drivers to see oncoming or turning cars. This has resulted in serious injury, left-turn crashes at this intersection.

Additional Information

​​For ADA (Americans with Disabilities Act) or Civil Rights Title VI accommodations, translation/interpretation services, or more information call 503-731-4128, TTY 800-735-2900 or Oregon Relay Service 7-1-1.​​​ 

El Departamento de Transporte de Oregon (ODOT) y el Condado de Clackamas están diseñando un proyecto para mejorar la seguridad en OR 213 y South Union Mills Road. Se espera que la construcción tenga lugar de enero a noviembre de 2018. Problema: Las velocidades inseguras del conductor y la visibilidad limitada en el OR 213 (que hace que sea difícil para los conductores ver los coches que se aproximan) ha resultado en graves accidentes de giro a la izquierda en esta intersección. Si desea obtener información sobre este proyecto traducida al español, sírvase llamar al 503-731-4128. 

Если вы хотите, чтобы информация об этом проекте была переведена на русский язык, пожалуйста, звоните по телефону 503-731-4128.

如果您想瞭解這個項目翻譯成 繁體中文 的相關資訊,請致電(503)731-4128. 

如果您想了解这个项目翻译成 简体中文 的相关信息,请致电503-731-4128​. 

이 프로젝트에 관한 한국어로 된 자료 신청방법 전화: 503-731-4128​. 

Nếu quý vị muốn thông tin về dự án này được dịch sang tiếng Việt, xin gọi 503-731-4128.

Contacts & Media

Oregon 213 at South Union Mills logo

Project Contact

Community Affairs Coordinator
Katelyn Jackson

Last Updated

3/26/2019 1:02 PM

Project Number


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