Lake Alan Henry Water Level
Texas · updated daily from the Texas Water Development Board
74.5% full
Lake Alan Henry is below full at 2210.08 ft and falling (-0.32 ft in the last 7 days).
9.92 ft below full pool of 2220.00 ft · change since yesterday -0.04 ft
Reading as of 2026-08-15 · higher than 27% of August readings on record
Where Lake Alan Henry sits historically
Today's level compared with every reading in our 28.9-year record for this lake.
Since yesterday
-0.04 ft
7-day change
-0.32 ft
30-day change
-1.04 ft
1-year change
-8.08 ft
Full pool
2220.0 ft
Last 30 days
Last 12 months
Full history (28.9 years)
Lake Alan Henry records and averages
| Current level | 2210.08 ft |
|---|---|
| Percent full | 74.5% |
| Storage | 71,703 acre-feet |
| Record high | 2229.31 ft (2010-07-05) |
| Record low | 2180.91 ft (1999-03-17) |
| Average of all readings | 2212.2 ft |
| Data span | 28.9 years (10,506 readings) |
Frequently asked questions
Is Lake Alan Henry full right now?
Lake Alan Henry is at 74.5% of conservation capacity as of 2026-08-15, which we classify as below full.Over the past 30 days the level has fallen 1.04 ft.
What is the water level at Lake Alan Henry today?
The most recent reading is 2210.08 ft (2026-08-15), sourced from the Texas Water Development Board. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Lake Alan Henry has ever been?
The highest level in our records is 2229.31 ft on 2010-07-05. The lowest is 2180.91 ft on 1999-03-17. Our record covers about 28.9 years of readings.
Is Lake Alan Henry low for this time of year?
Compared with every August in our records, the current level is higher than 27% of them — below full. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Lake Alan Henry low right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Lake Alan Henry has fallen 1.04 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.
How much has Lake Alan Henry changed over the past year?
The level is -8.08 ft compared with this date last year (2210.08 ft today). The full-history chart above covers 28.9 years, with a record high of 2229.31 ft and a record low of 2180.91 ft.
Nearby lakes in Texas
Source: the Texas Water Development Board. Readings are provisional and subject to revision by the publishing agency. All Texas lake levels.