Nf Big Wood River near Sawtooth Nra Hq near Ketchum water level

Name: Nf Big Wood River near Sawtooth Nra Hq near Ketchum 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, Nf Big Wood River, Idaho, United States

Directions

Below flood stage

Water level

4.91ft Steady over the last 24 hours

Measured Oct 21, 2026, 12:30 AM MDT (1 hour ago)

Flow: 19.3 cfs

History

7 days

Water level Minor flood stage

What this means

Water levels are unremarkable at Nf Big Wood River near Sawtooth Nra Hq near Ketchum, where the gauge shows 4.91 ft.

It is 2.39 ft below the flood stage of 7.30 ft.

It has barely moved over the past 24 hours. The 30-day range is 4.91 ft – 4.94 ft.

Fall is often low-water season on rivers, until steadier rain returns.

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

Key numbers

Highest on record: 7.48 ftJune 8, 2017

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 7.30 ft.

What happens at each level

7.30 ft: Lowland flooding possible from near the SNRA building upstream to around the Caribou Campground.
6.80 ft: Near bankfull from near the SNRA building upstream to around the Caribou Campground.
4.91 ft: Right now

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

Highest crests on record

Rank	Level	Date
1	7.48 ft	June 8, 2017
2	7.32 ft	June 12, 2022
3	7.01 ft	June 7, 2019
4	6.98 ft	June 4, 2012
5	6.74 ft	June 5, 2016
6	6.74 ft	May 30, 2020
7	6.70 ft	May 25, 2018
8	6.49 ft	June 9, 2013
9	6.28 ft	June 4, 2021
10	6.24 ft	May 25, 2014

Weather at the gauge

No rain in the last 3 days.

17 Sat 63° 34° – Wind 14 mph

18 Sun 62° 44° – Wind 15 mph

19 Mon 62° 44° – Wind 9 mph

20 Tue 59° 44° 0.16 in, 37% Wind 7 mph

21 Wed 56° 44° 0.22 in, 24% Wind 8 mph

22 Thu 60° 44° 0.23 in, 79% Wind 8 mph

23 Fri 52° 36° 0.02 in, 79% Wind 10 mph

Forecast: Open-Meteo

Sunrise 08:00 AM Sunset 06:46 PM Daylight 10 hr, 46 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Big Wood River near KetchumRiver gauge, Big Wood River	4.92 ft	Below flood stage	±0	0.3 mi
Trail Creek near Sun ValleyRiver gauge, Trail Creek	15.2 cfs	Normal	±0	6 mi
Warm Springs Creek at Gates Road near KetchumRiver gauge, Warm Springs Creek	29.4 cfs	Very low	−1.1 cfs	7 mi
Trail Creek at KetchumRiver gauge, Trail Creek	4.94 ft	Below flood stage	+0.02 ft	8 mi
East Fork Big Wood River at GimletRiver gauge, East Fork Big Wood River	4.89 ft	Below flood stage	±0	13 mi
Nf Big Lost River at Wild Horse near ChillyRiver gauge, Nf Big Lost River	1.48 ft	Below flood stage	±0	18 mi
Big Wood River at Hailey Id Total FlowRiver gauge, Big Wood River	1.57 ft	Below flood stage	±0	19 mi
Big Wood River at S Broadford Bridge near BellevueRiver gauge, Big Wood River	5.64 ft	Below flood stage	−0.01 ft	23 mi

Questions and answers

What is flood stage for the Nf Big Wood River near Sawtooth Nra Hq near Ketchum?

The official flood stage is 7.30 ft. The level is currently 2.39 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 Nf Big Wood River near Sawtooth Nra Hq near Ketchum today?

On Oct 21, 2026, 12:30 AM MDT, the water level was 4.91 ft. Steady over the last 24 hours.

Is Nf Big Wood River near Sawtooth Nra Hq near Ketchum rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Nf Big Wood River near Sawtooth Nra Hq near Ketchum normal?

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

What is the highest water level ever recorded at Nf Big Wood River near Sawtooth Nra Hq near Ketchum?

The highest level on record is 7.48 ft on June 8, 2017.

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.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13135520 (Agency page)
Coordinates: 43.78611, -114.41917 (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	4.91 ft	2026-10-21 06:30	Provisional
Flow	19.3 cfs	2026-10-21 06:30	Provisional

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How to cite

U.S. Geological Survey: Nf Big Wood River near Sawtooth Nra Hq near Ketchum (usgs:13135520). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/nf-big-wood-river-near-sawtooth-nra-hq-near-ketchum

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