Lake Bob Sandlin water level today
On Oct 28, 2026, Lake Bob Sandlin is at 334.60 ft, 87.0% full (2.90 ft below full pool). That is 3.2 points below normal for this date.
Lowest since March 2014Near normal
Source: Texas Water Development Board · storage 167,462 of 192,417 acre-ft · provisional data
Lake Bob Sandlin percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Records and key dates
- Record high
- 100.0%Jan 29, 1989
- Record low
- 55.8%Dec 19, 2006
- 12-month high
- 97.1%Jun 25, 2026
- 12-month low
- 87.0%Oct 28, 2026
- Last time full
- Jul 6, 2025
- Change in 1 year
- −1.71 ft−7.6 pts
About Lake Bob Sandlin
- River basin
- Cypress
- Full pool (top of conservation pool)
- 337.50 ft
- Conservation capacity
- 192,417 acre-ft
- Surface area today
- 8,328 acres
- Dead pool elevation
- 300.00 ft
- Flood control reservoir
- No
- Data since
- Oct 2, 1987
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 94% | 94% | 94% | 95% | 96% | 97% | 96% | 93% | 90% | 88% | — | — |
| 2025 | 99% | 100% | 100% | 100% | 100% | 100% | 99% | 97% | 97% | 95% | 94% | 94% |
| 2024 | 97% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 96% | 96% | 95% |
| 2023 | 98% | 100% | 100% | 100% | 100% | 100% | 100% | 97% | 94% | 93% | 94% | 95% |
| 2022 | 93% | 94% | 95% | 98% | 99% | 98% | 95% | 93% | 94% | 92% | 93% | 96% |
| 2021 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 96% | 94% | 93% | 93% |
| 2020 | 99% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 98% | 97% | 96% | 97% |
| 2019 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 96% | 96% | 96% | 96% |
| 2018 | 98% | 100% | 100% | 100% | 100% | 99% | 97% | 95% | 95% | 99% | 100% | 100% |
| 2017 | 97% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 97% | 95% | 95% |
Frequently asked questions
Is Lake Bob Sandlin full?
Not quite. On Oct 28, 2026 Lake Bob Sandlin was 87.0% full, 2.90 feet below its full pool elevation of 337.50 ft. It was last full on Jul 6, 2025.
What is the normal level of Lake Bob Sandlin for this time of year?
Between 1996 and 2025, Lake Bob Sandlin averaged 90.2% full around Oct 28, and 8 in 10 years it was between 77.5% and 99.6%. Today it is −3.2 percentage points below that average.
What is the lowest Lake Bob Sandlin has been?
In the TWDB record, which starts in 1987, the lowest daily value was 55.8% on Dec 19, 2006. The highest was 100.0% on Jan 29, 1989.
How often is the Lake Bob Sandlin 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 (192,417 acre-feet for Lake Bob Sandlin). Water above the conservation pool is flood storage and is not counted, so a reservoir can show 100% while rising into its flood pool.