description Duwamish River Delta Overview
The Duwamish River Delta is the lower, heavily modified estuarine area of the Duwamish River in Seattle, Washington, where the river enters Elliott Bay. Industrial development has replaced or altered much of the historic wetland and channel network. The lower river is part of the Lower Duwamish Waterway Superfund site, where federal and local agencies have overseen investigation and cleanup of industrial contamination.
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