Duwamish River At Golf Course At Tukwila, Wa Realtime Data
DUWAMISH RIVER AT GOLF COURSE AT TUKWILA, WA
Realtime Data • Report • Conditions
728
Discharge (cfs)
5.5
Gauge Height (ft)
USGS 12113390
Streamflow discharge was last observed at 728 cfs, and a gauge height of 5.47 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 609 .
Weather today, Tomorrow,
The river is also impacted by the Tukwila Dam, which can affect water levels and flow. Seasonal trends include higher flows in the winter and lower flows in the summer, due to precipitation patterns. Additionally, the hydrology of the Duwamish River is affected by the urbanization of the surrounding area, which can cause flash flooding during heavy rain events. An interesting fact is that the river was once a major source of seafood for the Duwamish tribe, but is now considered one of the most polluted waterways in the United States.
August 15, 2026
| Elevation | 16.0 ft |
| Last Updated | |
| Gage height, ft | 5.47 ft |
| Streamflow, ft³/s | 728.0 ft3/s |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU) | 4.8 FNU |
| Temperature, water, °C | 20.4 deg C |
| Streamflow, tidally filtered, ft³/s | 254.0 ft3/s |
| Percent of Normal | 91% |
| Year Over Year Average | 804 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 9,540 cfs |
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