Grande Ronde River at Troy water level

Name: Grande Ronde River at Troy 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, Grande Ronde River, Oregon, United States

Directions

Below flood stage

Water level

3.86ft Steady over the last 24 hours

Measured Oct 19, 2026, 03:00 AM PDT (51 min ago)

Flow: 576 cfs
Water temperature: 51 °F

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 3.78 ft by Tuesday, October 27 at 05:00 PM. Issued Sunday, October 18 at 10:13 AM by NOAA National Weather Service.

What this means

The gauge at Grande Ronde River at Troy reads 3.86 ft, a normal level.

It is 6.14 ft below the flood stage of 10.00 ft.

The level has held steady over the past 24 hours. The forecast expects the river to fall to 3.78 ft by Tuesday, October 27 at 05:00 PM. Over the past 30 days it has moved between 3.86 ft and 3.91 ft.

The sensor also reports a water temperature of 51 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 13.76 ftFebruary 9, 1996
Forecast peak: 3.88 ftSunday, October 18 at 11:00 PM

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 10.00 ft, still 6.14 ft away.

What happens at each level

16.00 ft: Flooding along the left bank into the town of Troy.
11.00 ft: Extensive flooding of fields around Troy are possible, but no residences are threatened.
10.00 ft: Minor flooding of fields adjacent to the river from Elgin through Troy and downstream to the confluence of the Snake River.
9.00 ft: Minor flooding in lowland fields from Elgin downstream through Troy and through southeast Washington to the Snake River.
3.86 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	13.76 ft	February 9, 1996
2	12.65 ft	January 1, 1997
3	11.85 ft	March 10, 2014
4	11.73 ft	February 7, 2020
5	11.70 ft	March 19, 17
6	11.25 ft	December 23, 1964
7	10.83 ft	June 5, 2010
8	10.44 ft	April 14, 2002
9	10.43 ft	December 22, 1955
10	10.36 ft	February 2, 1995

Weather at the gauge

The forecast is not available right now.

Sunrise 07:13 AM Sunset 05:58 PM Daylight 10 hr, 46 min First quarter 58%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Snake River near AnatoneRiver gauge, Snake River	3.31 ft	Low	+0.01 ft	25 mi
SNAKE RIVER AT McDUFF RAPIDS AT CHINA GARDEN IDRiver gauge	12,600 cfs	Low	−100.0 cfs	26 mi
Minam River at MinamRiver gauge, Minam River	52.2 cfs	Very low	±0	26 mi
Mill Creek near Walla WallaRiver gauge, Mill Creek	13.21 ft	Very low	+0.01 ft	32 mi
Asotin Creek at AsotinRiver gauge, Asotin Creek	1.65 ft	Lowest on record	±0	33 mi
Blue Creek near Walla WallaRiver gauge, Blue Creek	1.2 cfs	Normal	+0.1 cfs	34 mi
Lake WahaLake	3,366.61 ft	Normal		35 mi
Soldiers Meadow ReservoirReservoir	4,496.11 ft	Low		38 mi

Questions and answers

What is flood stage for the Grande Ronde River at Troy?

The official flood stage is 10.00 ft. The level is currently 6.14 ft below it.

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 Grande Ronde River at Troy today?

On Oct 19, 2026, 03:00 AM PDT, the water level was 3.86 ft. Steady over the last 24 hours.

Is Grande Ronde River at Troy rising or falling?

Steady over the last 24 hours.

Is the level of Grande Ronde River at Troy normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Grande Ronde River at Troy?

The highest level on record is 13.76 ft on February 9, 1996.

Is Grande Ronde River at Troy expected to rise?

The forecast expects the river to fall to 3.78 ft by Tuesday, October 27 at 05:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13333000 (Agency page)
Coordinates: 45.94570, -117.45101 (WGS84)
Vertical datum: NGVD29
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	3.86 ft	2026-10-19 10:00	Provisional
Flow	576 cfs	2026-10-19 10:00	Provisional
Water temperature	51 °F	2026-10-08 15:15	Provisional

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How to cite

U.S. Geological Survey: Grande Ronde River at Troy (usgs:13333000). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/grande-ronde-river-at-troy

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