New maps show high landslide risks in Portland Metro area

New maps show high landslide risks in Portland Metro area

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kgw.com

Posted on December 29, 2010 at 12:11 AM

Updated Wednesday, Dec 29 at 11:50 AM

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PORTLAND – State geologists have released new maps showing areas at high risk for landslides in the Portland Metro area.

The landslide hazard maps were updated after two years of research on past earth movement and experts now believe that the highest hazard area is right in the middle of the city.

Geologists said they found about 250 possible landslide locations in Southwest Portland alone. The largest high-risk area stretches from Portland’s Washington Park to PGE Park.

More: See new landslide maps

Jerry Powell lives just a block away from PGE Park and was shocked to learn that his home is located on top of an ancient slide.

"Certainly there's a lot of landslide potential in Washington Park," Powell added.

The geologists used new Lidar Technology - a kind of laser mapping - that revealed past earth movement. It pinpointed hazards under many homes and apartment complexes.

Geologists said while homeowners can't stop the natural movement of the earth, they can help protect their properties by controlling storm water runoff, among other things.

More: How to protect your home from landslides

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