Choke Canyon Reservoir water level today
On Oct 28, 2026, Choke Canyon Reservoir is at 190.49 ft, 21.1% full (30.01 ft below full pool). That is 33.1 points below normal for this date.
Source: Texas Water Development Board · storage 139,858 of 662,820 acre-ft · provisional data
Choke Canyon Reservoir percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Choke Canyon Reservoir from space
The same area near the lowest and the highest level since 2016, on clear days. Compare the shoreline and the coves.
Imagery: NASA GIBS, Harmonized Landsat Sentinel-2 (HLS). Landsat 8/9 courtesy of NASA/USGS; contains modified Copernicus Sentinel data 2018. Black specks are cloud and shadow masks.
Records and key dates
- Record high
- 100.0%Jul 12, 2002
- Record low
- 7.1%May 18, 2026
- 12-month high
- 25.0%Aug 1, 2026
- 12-month low
- 7.1%May 18, 2026
- Last time full
- Oct 18, 2007
- Change in 1 year
- +8.16 ft+10.4 pts
About Choke Canyon Reservoir
- River basin
- Nueces
- Full pool (top of conservation pool)
- 220.50 ft
- Conservation capacity
- 662,820 acre-ft
- Surface area today
- 10,118 acres
- Dead pool elevation
- 136.40 ft
- Flood control reservoir
- No
- Water supply for
- Corpus Christi
- Data since
- Oct 1, 1999
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 9% | 9% | 8% | 7% | 7% | 8% | 12% | 24% | 23% | 22% | — | — |
| 2025 | 16% | 16% | 15% | 15% | 14% | 14% | 13% | 12% | 12% | 11% | 10% | 10% |
| 2024 | 24% | 24% | 24% | 23% | 23% | 22% | 21% | 21% | 19% | 19% | 18% | 17% |
| 2023 | 31% | 31% | 30% | 31% | 32% | 32% | 30% | 29% | 27% | 26% | 25% | 25% |
| 2022 | 43% | 42% | 41% | 40% | 39% | 37% | 35% | 34% | 35% | 33% | 32% | 32% |
| 2021 | 35% | 34% | 34% | 33% | 37% | 48% | 50% | 49% | 48% | 46% | 45% | 44% |
| 2020 | 45% | 44% | 44% | 44% | 43% | 42% | 41% | 39% | 38% | 37% | 36% | 36% |
| 2019 | 55% | 55% | 54% | 55% | 55% | 54% | 53% | 51% | 49% | 47% | 46% | 46% |
| 2018 | 30% | 30% | 29% | 28% | 28% | 27% | 26% | 24% | 28% | 43% | 54% | 55% |
| 2017 | 40% | 40% | 40% | 39% | 38% | 37% | 35% | 34% | 33% | 33% | 32% | 31% |
Frequently asked questions
Is Choke Canyon Reservoir full?
Not quite. On Oct 28, 2026 Choke Canyon Reservoir was 21.1% full, 30.01 feet below its full pool elevation of 220.50 ft. It was last full on Oct 18, 2007.
What is the normal level of Choke Canyon Reservoir for this time of year?
Between 1996 and 2025, Choke Canyon Reservoir averaged 54.2% full around Oct 28, and 8 in 10 years it was between 25.1% and 99.7%. Today it is −33.1 percentage points below that average.
What is the lowest Choke Canyon Reservoir has been?
In the TWDB record, which starts in 1999, the lowest daily value was 7.1% on May 18, 2026. The highest was 100.0% on Jul 12, 2002.
How often is the Choke Canyon Reservoir water level updated?
TWDB publishes one reading per day for each reservoir. We check for new data every 2 hours and show the date of the reading next to the level. Recent values are provisional.
What does percent full mean?
It is the water stored in the conservation pool divided by the conservation capacity (662,820 acre-feet for Choke Canyon Reservoir). Water above the conservation pool is flood storage and is not counted, so a reservoir can show 100% while rising into its flood pool.