Columbia River – GeoPrac.net

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I-5 Bridge over the Columbia River - seismically deficient

Washington’s I-5 Bridge over Columbia River Needs Seismic Upgrade

February 15, 2011 rockman Comments Off

The timber piles of the existing I-5 bridge over the Columbia River is vulnerable to liquefaction in the event of a major earthquake. And there is no shortage of potential sources for the shaking in […]