Sam Rayburn Reservoir
Source: Texas Water Development Board (Water Data for Texas)
NE 5 mph · rain 0%
E 0 to 5 mph · rain 0%
Level history
Field notes
Sam Rayburn Reservoir's latest daily level (Oct 25, 2026) is 153.06 ft, which is 61.4% of its conservation capacity.
That is 11.34 ft below the conservation (full) pool elevation of 164.40 ft.
Over the past 7 days the lake has been falling (−0.35 ft), and it is −1.28 ft over 30 days.
Compared with a year ago (155.89 ft), the lake is 2.83 ft lower.
For this time of year, the median in TWDB's records (1996–2025, 30 years with data) is 84.0% full, so Sam Rayburn is currently below normal by 22.6 percentage points.
In TWDB's dataset (since 1988), the highest level recorded is 175.22 ft (Jun 3, 2021) and the lowest is 0.00 ft (Jun 21, 1988). Older records may be monthly rather than daily.
Lake facts
| Conservation storage | 1,753,706 ac-ft |
|---|---|
| Total storage (latest) | 1,772,662 ac-ft |
| Surface area | 81,438 acres |
| Gauge location | 31.0608, -94.1060 |
| Groups | Neches River Basin East Texas (Region I) Water Planning Area Water supply for Beaumont–Port Arthur |
Reference levels
| Level · source | Elevation | Today vs level |
|---|---|---|
| Conservation (full) pool TWDB | 164.40 ft | −11.34 ft |
| Dead pool TWDB | 105.00 ft | +48.06 ft |
| Highest in TWDB data (since 1988) TWDB series | 175.22 ft Jun 3, 2021 | −22.16 ft |
| Lowest in TWDB data (since 1988) TWDB series | 0.00 ft Jun 21, 1988 | +153.06 ft |
| Normal range for this date TWDB series, 30 years 1996–2025 | 74.7–90.0% full (median 84.0%) | — |
| Conservation capacity TWDB | 2,857,077 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 Sam Rayburn Reservoir right now?
As of Oct 25, 2026, TWDB reports Sam Rayburn Reservoir at 61.4% of its conservation capacity (1,753,706 of 2,857,077 acre-feet). For this date, the middle half of past years (1996–2025) ranged from 74.7% to 90.0% full, with a median of 84.0%.
What is the record high and low at Sam Rayburn Reservoir?
In TWDB's records since 1988, the highest level is 175.22 ft (Jun 3, 2021) and the lowest is 0.00 ft (Jun 21, 1988).
What is full pool at Sam Rayburn Reservoir?
The conservation (full) pool elevation used by TWDB is 164.40 ft. The lake is currently 11.34 ft below it.
Is Sam Rayburn Reservoir rising or falling?
Over the last 7 days it changed −0.35 ft and over 30 days −1.28 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.