Duwamish River Flow Today
As of October 7, 2026 at 12:45 AM, the Duwamish River is flowing at 66 cfs at Tukwila, WA — 10% of normal for the date and up 2,096% in 24 hours. ❤ Favorite
Duwamish River map
See the Duwamish River on a live map
Every gauge, dam and paddle run on the river, one tap each:
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Duwamish River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Tukwila, the Duwamish River is running 66 cfs — 10% of normal, up 2,096% since yesterday. Along the river, 1 of 1 reporting gauges are below normal (the typical gauge is at 10% of normal).
In the last 24 hours the river is rising at Tukwila (+2,096%).
How the Duwamish River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Tukwila16 ft 66 cfs10%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Duwamish River streamgauge, placed by its own percent of normal. The line is the typical gauge (10%).
Duwamish River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | Elevation |
|---|---|---|---|---|---|
|
Duwamish River At Golf Course At Tukwila WA
Oct 7, 12:45 AM · USGS 12113390 |
66 cfs | 10% | +2096% | 6.04 ft | 16 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Duwamish River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Duwamish River
The Duwamish River is a 12-mile long river that flows through Seattle, Washington into the Puget Sound. The river has a complex history, having been heavily industrialized in the early 20th century and subsequently becoming polluted. It has since been designated a Superfund site and is undergoing a cleanup effort. The river is fed by several small streams and has two main tributaries, the Green River and the Black River. There are no significant reservoirs or dams on the Duwamish River. Recreational activities on the river are limited due to pollution, but there are several parks along the river that offer hiking and birdwatching opportunities. The Duwamish Valley is also home to a number of urban farms that provide fresh produce to the surrounding communities.
Fishing near the Duwamish River
About the Duwamish River
How is the Duwamish River flowing right now?
As of October 7, 2026, the Duwamish River is flowing at 66 cfs at Tukwila, WA, about 10% of normal for the date. Every gauge’s live reading is in the table above.
Is the Duwamish River running high or low?
The typical gauge on the Duwamish River is at 10% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.