Cowlitz County seeks geomorphic assessment as first step toward Cowlitz River dredging

Jul 29, 2026

County commissioners approved a request for a geomorphic assessment to document sediment buildup and channel changes in the Cowlitz River as part of a grant application that could lead to dredging work; staff said the study would include an atlas and sediment-load analysis and be administered by Emergency Management.

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Cowlitz County commissioners approved a request to pursue a geomorphic assessment of the Cowlitz River and its floodplain as the first step in applying for a grant that could support future dredging.

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