WSDOT Projects

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I-5, Chehalis River Basin Flood Reduction

Project Location Map

Proposed Designs for the Chehalis River Floodplain, Feb. 1996
Proposed Designs for the Chehalis River Floodplain, Feb. 1996
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In coordination with the U.S. Army Corps of Engineers, Lewis County, and WSDOT, this project will reduce flood impacts to the Chehalis River Basin and Interstate 5.