Reservoir · Utah · United States · BOR RISE
Causey Reservoir
Causey Reservoir and Dam
41.2% full
Capacity
9.71 hm³
Volume stored
4 hm³
Coordinates
41.298°N, 111.586°W
Last updated
2026-09-09
Current fill
41.2%vs 7 days ago
-0.8%losing
vs 1 year ago
+6.8%year-over-year
7-day trend
→stable
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: 2026-09-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.298, -111.586 · Open in Google Maps
About Causey Reservoir
As of September 9, 2026, Causey Reservoir is filled to 41.2% of its total capacity, holding roughly 4 hm³ of water out of a maximum 10 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 (-0.8 pts), and it is 6.8 points above its level on the same date a year earlier.
Across the readings we hold for Causey Reservoir — 1824 data points between September 12, 2021 and September 9, 2026 — the level has ranged from a low of 25.5% (September 25, 2022) to a high of 92.7% (May 14, 2023). On average the reservoir is fullest around May and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Utah basin at 41.298°N, 111.586°W.
Key facts
- Current fill level
- 41.2%
- Water stored
- 4 hm³
- Total capacity
- 10 hm³
- 7-day change
- ▼ 0.8 pts
- Year-on-year
- ▲ 6.8 pts
- Primary use
- Multipurpose
- River basin
- Utah
- Operator
- BOR
- Coordinates
- 41.298°N, 111.586°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 41.2% | 4 |
| 8 Sep 2026 | 41.3% | 4 |
| 7 Sep 2026 | 41.4% | 4 |
| 6 Sep 2026 | 41.5% | 4 |
| 5 Sep 2026 | 41.6% | 4 |
| 4 Sep 2026 | 41.8% | 4 |
| 3 Sep 2026 | 41.9% | 4 |
| 2 Sep 2026 | 42.0% | 4 |
| 1 Sep 2026 | 42.2% | 4 |
| 31 Aug 2026 | 42.3% | 4 |
| 30 Aug 2026 | 42.5% | 4 |
| 29 Aug 2026 | 42.7% | 4 |