Reservoir · Texas · United States · USGS NWIS
Choke Canyon Res nr Three Rivers, TX
23.1% full
Capacity
880.85 hm³
Volume stored
204 hm³
Coordinates
28.484°N, 98.246°W
Last updated
2026-07-29
Current fill
23.1%vs 7 days ago
+0.1%gaining
vs 1 year ago
+15.4%year-over-year
7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — 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: 2026-07-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 28.484, -98.246 · Open in Google Maps
About Choke Canyon Res nr Three Rivers, TX
As of July 29, 2026, Choke Canyon Res nr Three Rivers, TX is filled to 23.1% of its total capacity, holding roughly 204 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 (+0.1 pts), and it is 15.4 points above its level on the same date a year earlier.
Across the readings we hold for Choke Canyon Res nr Three Rivers, TX — 1461 data points between July 30, 2022 and July 29, 2026 — the level has ranged from a low of 6.7% (May 16, 2026) to a high of 35.0% (September 5, 2022). On average the reservoir is fullest around August and at its lowest around June.
It is operated by USGS primarily for multiple purposes. It lies within the Texas basin at 28.484°N, 98.246°W.
Key facts
- Current fill level
- 23.1%
- Water stored
- 204 hm³
- Total capacity
- 881 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▲ 15.4 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- USGS
- Coordinates
- 28.484°N, 98.246°W
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 23.1% | 204 |
| 28 Jul 2026 | 23.0% | 203 |
| 27 Jul 2026 | 22.6% | 199 |
| 26 Jul 2026 | 22.2% | 196 |
| 25 Jul 2026 | 21.1% | 186 |
| 24 Jul 2026 | 18.2% | 161 |
| 23 Jul 2026 | 13.5% | 119 |
| 22 Jul 2026 | 8.8% | 77 |
| 21 Jul 2026 | 7.6% | 67 |
| 20 Jul 2026 | 7.4% | 65 |
| 19 Jul 2026 | 7.4% | 65 |
| 18 Jul 2026 | 7.4% | 66 |
Frequently asked questions
What is the current water level of Choke Canyon Res nr Three Rivers, TX?
As of July 29, 2026, Choke Canyon Res nr Three Rivers, TX is at 23.1% of its capacity, holding approximately 204 hm³ of water, according to USGS NWIS data.
Is Choke Canyon Res nr Three Rivers, TX reservoir full?
No. As of July 29, 2026, Choke Canyon Res nr Three Rivers, TX is low at 23.1% of its capacity, so it is not full.
Is the water level at Choke Canyon Res nr Three Rivers, TX rising or falling?
The level at Choke Canyon Res nr Three Rivers, TX has been broadly stable over the latest week on record (+0.1 points).
How much water can Choke Canyon Res nr Three Rivers, TX hold?
Choke Canyon Res nr Three Rivers, TX has a total capacity of 881 hm³.
Where is Choke Canyon Res nr Three Rivers, TX reservoir located?
Choke Canyon Res nr Three Rivers, TX is located in Texas, United States, within the Texas basin (coordinates 28.484°N, 98.246°W).
What is Choke Canyon Res nr Three Rivers, TX used for?
Choke Canyon Res nr Three Rivers, TX is used primarily for multiple purposes, and is managed by USGS.