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Jordanelle Reservoir

Jordanelle Reservoir Dam and Powerplant

49.1% full

Capacity

448.19 hm³

Volume stored

220 hm³

Vs month average

81% of normal

Coordinates

40.607°N, 111.417°W

Last updated

2026-10-25

Current fill

49.1%
Normal

vs 7 days ago

+0.3 pp

gaining

vs 1 year ago

-7.7 pp

year-over-year

7-day trend

→

stable

Drought context

Storage vs October average

81%of normal

49.1% full on 2026-10-25, against an average of 60.6% for October across 6 years of readings (-11.5 points).

Drought Monitor at this site · 20 October 2026

D2severe drought

The ground at Jordanelle Reservoir's coordinates falls inside the D2 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Utah drought figures →

Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-25.

Catchment Weather

Past 30 days + 14-day forecast · Open-Meteo

Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.607°N, 111.417°W · Open in Google Maps

About Jordanelle Reservoir

As of October 25, 2026, Jordanelle Reservoir is filled to 49.1% of its total capacity, holding 220.04 hm³ of water out of a maximum 448.19 hm³. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has held broadly steady (+0.3 pp), and it is 7.7 points below its level on the same date a year earlier.

Across the readings we hold for Jordanelle Reservoir — 1823 data points between October 29, 2021 and October 25, 2026 — the level has ranged from a low of 41.9% (March 19, 2022) to a high of 86.8% (June 21, 2023). On average the reservoir is fullest around June and at its lowest around March.

It is operated by BOR primarily for multiple purposes. It is at 40.607°N, 111.417°W.

Key facts

Current fill level
49.1% of total capacity
Water stored
220.04 hm³
Total capacity
448.19 hm³
7-day change
▲ 0.3 pp
Year-on-year
▼ 7.7 pp
Primary use
Multipurpose
Operator
BOR
Coordinates
40.607°N, 111.417°W
Last updated
October 25, 2026

Recent readings

DateFill levelVolume (hm³)
25 Oct 202649.1%220.04
24 Oct 202649.0%219.8
23 Oct 202649.0%219.48
22 Oct 202648.9%219.09
21 Oct 202648.8%218.8
20 Oct 202648.8%218.72
19 Oct 202648.8%218.61
18 Oct 202648.8%218.56
17 Oct 202648.8%218.51
16 Oct 202648.7%218.46
15 Oct 202648.8%218.51
14 Oct 202648.8%218.9

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