Reservoir · Texas · United States · BOR RISE
Choke Canyon Reservoir and Dam
23.0% full
Capacity
880.85 hm³
Volume stored
203 hm³
Coordinates
28.467°N, 98.167°W
Last updated
2026-07-28
Current fill
23.0%vs 7 days ago
+0.4%gaining
vs 1 year ago
+15.3%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. 28.467, -98.167 · Open in Google Maps
About Choke Canyon Reservoir and Dam
As of July 28, 2026, Choke Canyon Reservoir and Dam is filled to 23.0% of its total capacity, holding roughly 203 hm³ of water out of a maximum 881 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.4 pts), and it is 15.3 points above its level on the same date a year earlier.
Across the readings we hold for Choke Canyon Reservoir and Dam — 1816 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 6.6% (May 17, 2026) to a high of 49.5% (August 2, 2021). On average the reservoir is fullest around August and at its lowest around June.
It is operated by BOR primarily for multiple purposes. It lies within the Texas basin at 28.467°N, 98.167°W.
Key facts
- Current fill level
- 23.0%
- Water stored
- 203 hm³
- Total capacity
- 881 hm³
- 7-day change
- ▲ 0.4 pts
- Year-on-year
- ▲ 15.3 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- BOR
- Coordinates
- 28.467°N, 98.167°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 23.0% | 203 |
| 27 Jul 2026 | 22.6% | 199 |
| 26 Jul 2026 | 22.2% | 195 |
| 25 Jul 2026 | 21.0% | 185 |
| 24 Jul 2026 | 18.1% | 159 |
| 23 Jul 2026 | 13.2% | 117 |
| 22 Jul 2026 | 8.7% | 76 |
| 21 Jul 2026 | 7.6% | 67 |
| 20 Jul 2026 | 7.4% | 65 |
| 19 Jul 2026 | 7.4% | 65 |
| 18 Jul 2026 | 7.4% | 65 |
| 17 Jul 2026 | 7.4% | 65 |
Frequently asked questions
What is the current water level of Choke Canyon Reservoir and Dam?
As of July 28, 2026, Choke Canyon Reservoir and Dam is at 23.0% of its capacity, holding approximately 203 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Choke Canyon Reservoir and Dam reservoir full?
No. As of July 28, 2026, Choke Canyon Reservoir and Dam is low at 23.0% of its capacity, so it is not full.
Is the water level at Choke Canyon Reservoir and Dam rising or falling?
The level at Choke Canyon Reservoir and Dam has been broadly stable over the latest week on record (+0.4 points).
How much water can Choke Canyon Reservoir and Dam hold?
Choke Canyon Reservoir and Dam has a total capacity of 881 hm³.
Where is Choke Canyon Reservoir and Dam reservoir located?
Choke Canyon Reservoir and Dam is located in Texas, United States, within the Texas basin (coordinates 28.467°N, 98.167°W).
What is Choke Canyon Reservoir and Dam used for?
Choke Canyon Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.