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Bathymetry data for embayment in Duwamish River on left bank between river miles 1.4 and 1.5, 2021

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 01, 2026 at 04:37 AM | Dataset Last Updated: September 18, 2024 at 12:00 AM
The U.S. Geological Survey (USGS), in cooperation with the Washington State Department of Ecology (Ecology), conducted a study to describe the current understanding of the regional groundwater system of the lower Duwamish River valley and groundwater and surface-water interactions in the lower Duwamish Waterway. A nearshore site along the western shoreline of the Duwamish River, about 1.5 mi upstream from the river mouth, was selected for focused groundwater data collection by USGS. A bathymetric survey of the embayment adjacent to the nearshore site was conducted in 2021 to support the understanding of groundwater and surface-water interactions. This data release contains the bathymetric data support the larger work.

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