Reservoir · Texas · United States · BOR RISE
Twin Buttes Reservoir and Dam
9.6% full
Capacity
229.69 hm³
Volume stored
22 hm³
Coordinates
31.377°N, 100.534°W
Last updated
2026-07-28
Current fill
9.6%vs 7 days ago
-0.1%losing
vs 1 year ago
-1.9%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: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 31.377, -100.534 · Open in Google Maps
About Twin Buttes Reservoir and Dam
As of July 28, 2026, Twin Buttes Reservoir and Dam is filled to 9.6% of its total capacity, holding roughly 22 hm³ of water out of a maximum 230 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 1.9 points below its level on the same date a year earlier.
Across the readings we hold for Twin Buttes Reservoir and Dam — 1823 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 8.5% (April 18, 2025) to a high of 54.6% (August 20, 2021). On average the reservoir is fullest around August and at its lowest around July.
It is operated by BOR primarily for multiple purposes. It lies within the Texas basin at 31.377°N, 100.534°W.
Key facts
- Current fill level
- 9.6%
- Water stored
- 22 hm³
- Total capacity
- 230 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 1.9 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- BOR
- Coordinates
- 31.377°N, 100.534°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 9.6% | 22 |
| 27 Jul 2026 | 9.7% | 22 |
| 26 Jul 2026 | 9.7% | 22 |
| 25 Jul 2026 | 9.8% | 22 |
| 24 Jul 2026 | 9.8% | 23 |
| 23 Jul 2026 | 9.9% | 23 |
| 22 Jul 2026 | 9.9% | 23 |
| 21 Jul 2026 | 9.9% | 23 |
| 20 Jul 2026 | 9.9% | 23 |
| 19 Jul 2026 | 10.0% | 23 |
| 18 Jul 2026 | 10.0% | 23 |
| 17 Jul 2026 | 10.0% | 23 |
Frequently asked questions
What is the current water level of Twin Buttes Reservoir and Dam?
As of July 28, 2026, Twin Buttes Reservoir and Dam is at 9.6% of its capacity, holding approximately 22 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Twin Buttes Reservoir and Dam reservoir full?
No. As of July 28, 2026, Twin Buttes Reservoir and Dam is critically low at 9.6% of its capacity, so it is not full.
Is the water level at Twin Buttes Reservoir and Dam rising or falling?
The level at Twin Buttes Reservoir and Dam has been broadly stable over the latest week on record (-0.1 points).
How much water can Twin Buttes Reservoir and Dam hold?
Twin Buttes Reservoir and Dam has a total capacity of 230 hm³.
Where is Twin Buttes Reservoir and Dam reservoir located?
Twin Buttes Reservoir and Dam is located in Texas, United States, within the Texas basin (coordinates 31.377°N, 100.534°W).
What is Twin Buttes Reservoir and Dam used for?
Twin Buttes Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.