Duwamish River at E Marginal Way Branch at Duwamish water level

Name: Duwamish River at E Marginal Way Branch at Duwamish water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Duwamish River, Washington, United States

Directions

Latest reading

Water level

0.83ft Up 0.79 ft over the last 24 hours

Measured Oct 19, 2026, 04:45 AM PDT (34 min ago)

History

7 days

Water level

What this means

The latest river stage reported for Duwamish River at E Marginal Way Branch at Duwamish is 0.83 ft. There is no published reference for this river yet, so we can't say whether that is high or low for the season.

The water is rising: up 0.79 ft over the past 24 hours. Over the past 30 days it has moved between −0.31 ft and 8.88 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

What the stage means on the water

With no published normal range, paddlers and anglers should go by the trend: a rising river usually means muddier, faster water.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:34 AM Sunset 06:15 PM Daylight 10 hr, 41 min First quarter 59%

Map

Other gauges on the Duwamish River

Gauge	Level	Compared with normal	24 hours	Distance
Duwamish River at Golf Course at TukwilaRiver gauge, Duwamish River	4.22 ft	No reference yet	+0.18 ft	2.0 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Cedar River at RentonRiver gauge, Cedar River	8.58 ft	Normal	−0.01 ft	4.1 mi
Mill Creek near Mouth at OrilliaRiver gauge, Mill Creek	14.94 ft	Normal	+0.03 ft	5.3 mi
Green River at 200th Street at KentRiver gauge, Green River	377 cfs	Low	−4.0 cfs	5.5 mi
Springbrook Creek at OrilliaRiver gauge, Springbrook Creek	16.88 ft	High	+0.01 ft	5.6 mi
Green River below Meeker St at KentRiver gauge, Green River	18.93 ft	Normal	−0.01 ft	8 mi
Mill Creek at Earthworks Park at KentRiver gauge, Mill Creek	46.38 ft	High	−0.01 ft	9 mi
Sammamish Lake near RedmondLake, Sammamish Lake	25.97 ft	Normal	+0.01 ft	10 mi
Green River above S 277th St at KentRiver gauge, Green River	37.57 ft	Normal	±0	11 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Duwamish River at E Marginal Way Branch at Duwamish today?

On Oct 19, 2026, 04:45 AM PDT, the water level was 0.83 ft. Up 0.79 ft over the last 24 hours.

Is Duwamish River at E Marginal Way Branch at Duwamish rising or falling?

Up 0.79 ft over the last 24 hours.

Is the level of Duwamish River at E Marginal Way Branch at Duwamish normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:12113415 (Agency page)
Coordinates: 47.50051, -122.28814 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	0.83 ft	2026-10-19 11:45	Provisional

Download

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How to cite

U.S. Geological Survey: Duwamish River at E Marginal Way Branch at Duwamish (usgs:12113415). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/washington/duwamish-river-at-e-marginal-way-branch-at-duwamish

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer