Sediment Transport to the Lower Duwamish Waterway

The Green-Duwamish River transports watershed-derived sediment to the Lower Duwamish Waterway Superfund site near Seattle,
Washington. Understanding the amount and timing of sediment transported by the river, as well as contaminants associated with the
sediment, is essential to the bed sediment cleanup process. The diverse watershed can be divided into three source types; lower
watershed – industrial/urban, middle watershed – suburban/agricultural, and upper watershed – forested.