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Volume 9, Issue 6
June 2011

thompson slideThompson remains closed indefinitely

A segment of NW Thompson Road north of Skyline was closed in January after a small landslide was discovered on the roadway and the downhill slope. Multnomah County road engineers investigated, and found that the land is highly unstable due to terrain and water movement under the roadway.

Mike Pullen, Multnomah County Communications Officer, says, "The Thompson slide worsened during the winter and spring, after the road was closed. The "cheaper and faster" repair options have been eliminated by the scale of the slide. Unfortunately, this will be a very expensive and time-consuming repair. This winter's heavier-than-normal rainfall appears to be a contributing factor. The Thompson Road landslide looks like it will be the most expensive and inconvenient road closure on our road system this year."

The county has hired a geotechnical consultant and is still awaiting their report. More information may be available in the next few weeks.

thompson mapResidents may access their homes from either Cornell below the slide, or from Skyline above, but no through traffic is allowed, including bicycles and pedestrians. Through traffic should continue to detour to NW Cornell Road and NW Skyline Blvd.




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Published monthly by Pioneer Marketing & Design
Publisher/Editor:Virginia Bruce
PO Box 91061
Portland, Oregon 97291