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South End Road landslide repairs

Project description: Clackamas County has received Federal Emergency Relief Program (ERP) funds to stabilize the roadway and slope on South End Road at Milepost 3.8 (near Coffee Creek). The road was damaged in March 2017 as a result of heavy rains. A state emergency declaration, which included Clackamas County, was signed by the governor that allows Clackamas County to be eligible for the federal funding.

Clackamas County constructed temporary repairs to these areas in the spring of 2017. A more permanent solution is required to help stabilize the slope.  We expect that solution will consist of a retaining wall and reinforcement of the roadway embankment.  In accordance with state and federal requirements, we have hired a firm to design these improvements.

Updated: 01/30/20

Current activities: Additional geotechnical explorations and survey will occur February 17th through the 19th. The additional explorations are needed to better define the subsurface conditions and identify potential retaining wall limits to stabilize the slope. 

Schedule: Project design is underway and will be completed in the winter of 2020, with construction planned for 2021.

Project impact on traffic:

  • During spring-summer 2019, there will be occasional lane closures for surveying, geotechnical explorations and environmental assessment work.
  • A full road closure is expected during construction in 2021.

Contact: Joel Howie, Project Manager — jhowie@clackamas.us, 503-742-4658

Engineer: Joel Tubbs, PE (David Evans & Associates)

Contractor: David Evans & Associates

You might like to know: 
There will be meetings and other opportunities for the public to learn more about the planned repairs, including the construction schedule, as that information becomes available.  Notices will be sent to area residents and property owners at key points during the process.

Funding:

  • Estimated total project cost: $2,740,000
  • Funded through a Federal emergency relief program matched with County Road funds

Phone:503-742-4691
Email:engineering@clackamas.us

150 Beavercreek Road Room #325 Oregon City, OR 97045

Office Hours:

⚠ Due to COVID-19, our offices are closed to the public. At this time the closure is expected to continue through April 20. Our employees are available and working to meet your needs remotely.