Reservoir · New Mexico · United States · BOR RISE
Brantley Reservoir
Brantley Reservoir and Dam
32.2% full
Capacity
50.64 hm³
Volume stored
16 hm³
Coordinates
32.544°N, 104.381°W
Last updated
2026-09-09
Current fill
32.2%vs 7 days ago
-4.1%losing
vs 1 year ago
-4.5%year-over-year
7-day trend
↓falling
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. 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. 32.544, -104.381 · Open in Google Maps
About Brantley Reservoir
As of September 9, 2026, Brantley Reservoir is filled to 32.2% of its total capacity, holding roughly 16 hm³ of water out of a maximum 51 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 4.1 percentage points, and it is 4.5 points below its level on the same date a year earlier.
Across the readings we hold for Brantley Reservoir — 1824 data points between September 12, 2021 and September 9, 2026 — the level has ranged from a low of 19.2% (August 16, 2022) to a high of 104.7% (January 9, 2025). On average the reservoir is fullest around March and at its lowest around August.
It is operated by BOR primarily for multiple purposes. It lies within the New Mexico basin at 32.544°N, 104.381°W.
Key facts
- Current fill level
- 32.2%
- Water stored
- 16 hm³
- Total capacity
- 51 hm³
- 7-day change
- ▼ 4.1 pts
- Year-on-year
- ▼ 4.5 pts
- Primary use
- Multipurpose
- River basin
- New Mexico
- Operator
- BOR
- Coordinates
- 32.544°N, 104.381°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 32.2% | 16 |
| 8 Sep 2026 | 32.9% | 17 |
| 7 Sep 2026 | 33.4% | 17 |
| 6 Sep 2026 | 34.2% | 17 |
| 5 Sep 2026 | 34.7% | 18 |
| 4 Sep 2026 | 35.2% | 18 |
| 3 Sep 2026 | 35.7% | 18 |
| 2 Sep 2026 | 36.3% | 18 |
| 1 Sep 2026 | 36.9% | 19 |
| 31 Aug 2026 | 37.4% | 19 |
| 30 Aug 2026 | 38.0% | 19 |
| 29 Aug 2026 | 38.6% | 20 |