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County updates federal talks on silt retention, dredging and a high-risk sediment dam above Silver Lake
Summary
County officials reported the Army Corps approved funding for a 10-foot raise of a silt retention structure, discussed monitoring sensors and Port of Longview dredging responsibilities, and flagged a separate higher-elevation tunnel/dam near Silver Lake that may pose major flood risk if it fails.
County leadership briefed commissioners on recent federal meetings in Washington, D.C., where they discussed funding and monitoring for silt-management projects on the Cowlitz River and related infrastructure risks.
The county administrator said the Army Corps has full funding for a 10-foot raise on the silt retention structure (SRS) at Toutle (the transcript referenced a raise up in 'Toodle' / Toutle). He said two more raises are feasible and that the 10-foot…
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