Green River level at Dutch John
Utah · Fishing & wading
Measured at USGS 09234500 — GREEN RIVER NEAR GREENDALE, UT · NWS forecast point GRZU1
Reading taken · as of 33 min ago
Up and off-colour — heavier water than usual for wading
At 2,310 CFS, this gauge is running 130% of normal for mid-September — above the 1,780 CFS median USGS has recorded for this date across 62 years of record (1964–2026).
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Flood stages at Dutch John
National Weather Service categories for gauge GRZU1, WFO GJT. Impact wording is the NWS's own, verbatim.
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Major flood 19.0 ft
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Moderate flood 17.0 ft
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Minor flood 15.4 ft
- 15.4 ft Forest service walkways at the boatlaunch below the dam become inundated. Campground 5 miles downstream from the dam becomes flooded.
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Action 15.0 ft
- Right now 9.77 ft
NWS forecast: 10.15 ft by .
Flow history at Dutch John
Daily values from USGS 09234500, updated every 15 to 60 minutes; NWS forecast for GRZU1 reissued through the day. Provisional.
Highest crests on record at Dutch John
12 on record
| Stage | Flow | Date |
|---|---|---|
| 16.20 ft | 11,200 CFS | Jun 14, 1999 |
| 15.13 ft | 9,440 CFS | May 27, 2022 |
| 15.13 ft | 9,440 CFS | May 30, 2020 |
| 15.05 ft | 9,320 CFS | Jun 15, 2019 |
| 15.01 ft | 9,320 CFS | Jun 19, 2016 |
| 15.00 ft | 9,300 CFS | Jun 7, 2014 |
| 14.92 ft | 9,130 CFS | Mar 30, 2017 |
| 14.76 ft | 8,560 CFS | Jun 16, 1997 |
| 14.40 ft | 8,020 CFS | Jun 6, 1986 |
| 14.25 ft | 8,190 CFS | May 14, 2015 |
Crests published by the National Weather Service.
About Green River at Dutch John
In Utah, below Flaming Gorge Reservoir. Releases can change the flow by hundreds of CFS in an hour with no rain in the basin — check it the morning you go, not the night before. Flaming Gorge tailwater; A section to Little Hole.
Reservoir feeding this stretch
Flow here is set by releases from Flaming Gorge Reservoir. A full pool usually means more water on its way down.
Green River at Dutch John — common questions
3 questions
How do releases from Flaming Gorge Reservoir affect this stretch?
Directly and fast. When the dam generates, flow here can climb by an order of magnitude within the hour, with no rain anywhere in the basin. That sudden release is the real hazard on a tailwater. The pool level is on lakelvl.com, linked below.
Is Green River at Dutch John high or low for this time of year?
The USGS median flow for mid-September here is 1,780 CFS, from 62 years of record (1964–2026). Today is 130% of it. The comparison is what makes the raw number mean anything: the same reading is a drought on one river and a flood on another.
How often does this reading update?
USGS transmits from gauge 09234500 every 15 to 60 minutes, and the National Weather Service reissues the flood forecast for GRZU1 a few times a day — more often when the river is rising. This page refreshes from both when you open it. The timestamp is in the gauge's local time.