The Green/Duwamish River transports watershed-derived sediment to the Lower Duwamish Waterway Superfund site near Seattle, Washington. Understanding the amount of sediment transported by the river is essential information to the bed sediment cleanup process. Turbidity, discharge, suspended-sediment concentration (SSC) and particle-size data were collected by the U.S. Geological Survey (USGS) between February 2013 and January 2017 at the Duwamish River, Washington, within the tidal influence at river kilometer 16.7 (USGS site 12113390; Duwamish River at Golf Course at Tukwila, WA). This report quantifies the timing and magnitude of suspended-sediment transported in the Duwamish River. Regression models were developed between SSC and turbidity as well as SSC and discharge to estimate 15-minute SSC. Suspended-sediment loads were calculated from the computed SSC and time-series discharge data for every 15-minute interval during the study period. This dataset is the primary appendix to Open-File Report, Suspended Sediment Transport by the Green-Duwamish River to the Lower Duwamish Waterway, Seattle, Washington, 2013-2017 (include link).