Ririe Reservoir water level

Name: Ririe Reservoir water level (U.S. Bureau of Reclamation)
Creator: U.S. Bureau of Reclamation
License: https://www.usbr.gov/main/disclaim.html

Reservoir, Idaho, United States

Directions

Very low for mid-October

Surface elevation

5,063.22ft Up 0.07 ft over the last 7 days

Measured Oct 17, 2026 (34 hours ago)

Water stored: 23,112 acre‑ft

History

What this means

Ririe Reservoir is far below normal for mid-October, with the lake level at 5,063.22 ft.

That puts it 22.08 ft below the median of 5,085.30 ft for mid-October, based on 36 years of readings. A year ago it stood at 5,084.65 ft (−21.43 ft).

It has risen 0.07 ft over the past week. In the last month it has stayed between 5,063.08 ft and 5,064.55 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 36 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 5,085.30 ft22.08 ft below the median for this date
Normal for this date: 5,065.51 ft – 5,092.08 ft8 years in 10 fall in this range (36 years of records)
Same day last year: 5,084.65 ft−21.43 ft
Lowest and highest in 30 days: 5,063.08 ft – 5,064.55 ft
Lowest and highest in 12 months: 5,063.08 ft – 5,098.79 ft

On the water at Ririe Reservoir

A receding shoreline opens up beaches but also uncovers hazards: stumps, rocks and soft mud that are usually well under water.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

Weather at the gauge

No rain in the last 3 days.

17 Sat 67° 34° – Wind 12 mph

18 Sun 66° 40° – Wind 11 mph

19 Mon 67° 42° – Wind 10 mph

20 Tue 66° 49° 0.00 in Wind 16 mph

21 Wed 70° 49° – Wind 14 mph

22 Thu 67° 48° 0.15 in, 51% Wind 13 mph

23 Fri 51° 38° 1.83 in, 80% Wind 17 mph

Forecast: Open-Meteo

Sunrise 07:45 AM Sunset 06:40 PM Daylight 10 hr, 55 min First quarter 51%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Willow Creek near RirieRiver gauge, Willow Creek	0.96 ft	Below flood stage	+0.02 ft	0.2 mi
Dry Bed near RirieRiver gauge, Dry Bed	1,570 cfs	Normal	−10.0 cfs	4.1 mi
Snake River near HeiseRiver gauge, Snake River	2.59 ft	Below flood stage	±0	4.6 mi
Sand Creek near UconRiver gauge, Sand Creek	0.1 cfs	Very low	−1.1 cfs	8 mi
Willow Creek below Floodway Channel near UconRiver gauge, Willow Creek	0.0 cfs	Low	±0	8 mi
Willow Creek Floodway Channel near UconRiver gauge, Willow Creek Floodway Channel	0.0 cfs	Low	±0	9 mi
Willow Creek below Tex Creek near RirieRiver gauge, Willow Creek	14.7 cfs	Very low	−0.5 cfs	10 mi
Snake River at LorenzoRiver gauge, Snake River	1,360 cfs	Normal	−30.0 cfs	13 mi

Questions and answers

How does Ririe Reservoir compare with last year?

It is 21.43 ft lower than on the same day last year, when the reading was 5,084.65 ft.

What is a normal level for Ririe Reservoir in mid-October?

The median for mid-October is 5,085.30 ft. In 8 years out of 10 the reading falls between 5,065.51 ft and 5,092.08 ft, based on 36 years of records.

Is Ririe Reservoir really 5,063.22 ft deep?

No. 5,063.22 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Ririe Reservoir today?

On Oct 17, 2026, the surface elevation was 5,063.22 ft. Up 0.07 ft over the last 7 days.

Is Ririe Reservoir rising or falling?

Up 0.07 ft over the last 7 days.

Is the level of Ririe Reservoir normal?

Very low for mid-October. Compared with 36 years of daily readings for this time of year.

How often is this data updated?

The U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Bureau of Reclamation
Station code: usbr:7197 (Agency page)
Coordinates: 43.58214, -111.74284 (WGS84)
Update interval: once a day
Licence: Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	5,063.22 ft	2026-10-17 06:00	Provisional
Water stored	23,112 acre‑ft	2026-10-17 06:00	Provisional

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How to cite

U.S. Bureau of Reclamation: Ririe Reservoir (usbr:7197). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/ririe-reservoir

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