Amistad Reservoir
Source: Texas Water Development Board (Water Data for Texas)
SE 15 to 20 mph · rain 4%
SE 10 to 15 mph · rain 7%
Level history
Field notes
Amistad Reservoir's latest daily level (Oct 25, 2026) is 1,062.81 ft, which is 46.6% of its conservation capacity.
That is 54.19 ft below the conservation (full) pool elevation of 1,117.00 ft.
Over the past 7 days the lake has been rising (+1.41 ft), and it is +6.45 ft over 30 days.
Compared with a year ago (1,057.55 ft), the lake is 5.26 ft higher.
For this time of year, the median in TWDB's records (1996–2025, 30 years with data) is 61.3% full, so Amistad is currently below normal by 14.7 percentage points.
In TWDB's dataset (since 1968), the highest level recorded is 1,135.64 ft (Sep 23, 1974) and the lowest is 790.09 ft (Nov 30, 2008). Older records may be monthly rather than daily.
Lake facts
| Conservation storage | 844,979 ac-ft |
|---|---|
| Total storage (latest) | 915,633 ac-ft |
| Surface area | 24,178 acres |
| Gauge location | 29.4497, -101.0558 |
| Groups | Rio Grande River Basin Plateau (Region J) Water Planning Area Water supply for Brownsville Water supply for Laredo |
Reference levels
| Level · source | Elevation | Today vs level |
|---|---|---|
| Conservation (full) pool TWDB | 1,117.00 ft | −54.19 ft |
| Dead pool TWDB | 930.00 ft | +132.81 ft |
| Highest in TWDB data (since 1968) TWDB series | 1,135.64 ft Sep 23, 1974 | −72.83 ft |
| Lowest in TWDB data (since 1968) TWDB series | 790.09 ft Nov 30, 2008 | +272.72 ft |
| Normal range for this date TWDB series, 30 years 1996–2025 | 48.4–87.8% full (median 61.3%) | — |
| Conservation capacity TWDB | 1,813,408 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 Amistad Reservoir right now?
As of Oct 25, 2026, TWDB reports Amistad Reservoir at 46.6% of its conservation capacity (844,979 of 1,813,408 acre-feet). For this date, the middle half of past years (1996–2025) ranged from 48.4% to 87.8% full, with a median of 61.3%.
What is the record high and low at Amistad Reservoir?
In TWDB's records since 1968, the highest level is 1,135.64 ft (Sep 23, 1974) and the lowest is 790.09 ft (Nov 30, 2008).
What is full pool at Amistad Reservoir?
The conservation (full) pool elevation used by TWDB is 1,117.00 ft. The lake is currently 54.19 ft below it.
Is Amistad Reservoir rising or falling?
Over the last 7 days it changed +1.41 ft and over 30 days +6.45 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.