Twin Buttes Reservoir
Source: Texas Water Development Board (Water Data for Texas)
SSE 15 mph · rain 1%
SE 5 to 15 mph · rain 3%
Level history
Field notes
On Oct 25, 2026, Twin Buttes Reservoir was at 1,894.26 ft, which is 4.3% of its conservation capacity.
That is 45.94 ft below the conservation (full) pool elevation of 1,940.20 ft.
Over the past 7 days the lake has been falling (−0.40 ft), and it is −1.44 ft over 30 days.
Compared with a year ago (1,905.60 ft), the lake is 11.34 ft lower.
For this time of year, the median in TWDB's records (1996–2025, 30 years with data) is 11.4% full, so Twin Buttes is currently below normal by 7.1 percentage points.
In TWDB's dataset (since 2000), the highest level recorded is 1,934.72 ft (Jun 18, 2019) and the lowest is 1,881.08 ft (Nov 9, 2013). Older records may be monthly rather than daily.
Lake facts
| Conservation storage | 7,843 ac-ft |
|---|---|
| Total storage (latest) | 11,592 ac-ft |
| Surface area | 1,022 acres |
| Gauge location | 31.3821, -100.5384 |
| Groups | Colorado River Basin Region F Water Planning Area Water supply for San Angelo |
Reference levels
| Level · source | Elevation | Today vs level |
|---|---|---|
| Conservation (full) pool TWDB | 1,940.20 ft | −45.94 ft |
| Dead pool TWDB | 1,885.00 ft | +9.26 ft |
| Highest in TWDB data (since 2000) TWDB series | 1,934.72 ft Jun 18, 2019 | −40.46 ft |
| Lowest in TWDB data (since 2000) TWDB series | 1,881.08 ft Nov 9, 2013 | +13.18 ft |
| Normal range for this date TWDB series, 30 years 1996–2025 | 3.3–29.3% full (median 11.4%) | — |
| Conservation capacity TWDB | 182,454 acre-feet | — |
Only levels the agency publishes, or that we compute directly from its own records, are listed. “Today vs level” = latest reading minus the reference level. A level the source does not publish is left out rather than estimated.
Nearby lakes
Common questions
How full is Twin Buttes Reservoir right now?
As of Oct 25, 2026, TWDB reports Twin Buttes Reservoir at 4.3% of its conservation capacity (7,843 of 182,454 acre-feet). For this date, the middle half of past years (1996–2025) ranged from 3.3% to 29.3% full, with a median of 11.4%.
What is the record high and low at Twin Buttes Reservoir?
In TWDB's records since 2000, the highest level is 1,934.72 ft (Jun 18, 2019) and the lowest is 1,881.08 ft (Nov 9, 2013).
What is full pool at Twin Buttes Reservoir?
The conservation (full) pool elevation used by TWDB is 1,940.20 ft. The lake is currently 45.94 ft below it.
Is Twin Buttes Reservoir rising or falling?
Over the last 7 days it changed −0.40 ft and over 30 days −1.44 ft.
How often is this page updated?
The page is rebuilt automatically every day from TWDB's published data. Values can be revised later by the source agency.
Where does the data come from?
Water Data for Texas, run by the Texas Water Development Board, which compiles gauge readings from USGS, USACE, river authorities and others. Forecasts come from the National Weather Service.
Values are TWDB daily estimates; elevations in feet above the vertical datum stated by TWDB. TWDB disclaimer: reservoir data are best estimates generated by the Texas Water Development Board from data collected by various providers; TWDB makes no warranties as to their fitness for any purpose. See data sources.