Aging levees pose risk for Green River communities

12/29/2009 | Oregonian (Portland), The

Aging levees along the Green River in Washington state may pose a risk to communities, along with the damaged Howard Hanson Dam. Many of the earthen levees were built at least 50 years ago by farmers, and they include debris such as tree stumps and rusted car frames. "When we have a higher likelihood of high flows, we'll have a higher likelihood of failure," said Larry Karpack, a consulting engineer for the county.

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Oregonian (Portland), The

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