Eagle Mountain Reservoir Water Level
Texas · updated daily from the Texas Water Development Board
79.2% full
Eagle Mountain Reservoir is below full at 644.61 ft and falling (-0.56 ft in the last 7 days).
4.49 ft below full pool of 649.10 ft · change since yesterday -0.04 ft
Reading as of 2026-08-15 · higher than 24% of August readings on record
Where Eagle Mountain Reservoir sits historically
Today's level compared with every reading in our 38.6-year record for this lake.
Since yesterday
-0.04 ft
7-day change
-0.56 ft
30-day change
-1.65 ft
1-year change
-2.87 ft
Full pool
649.1 ft
Last 30 days
Last 12 months
Full history (38.6 years)
Eagle Mountain Reservoir records and averages
| Current level | 644.61 ft |
|---|---|
| Percent full | 79.2% |
| Storage | 146,636 acre-feet |
| Record high | 656.94 ft (1990-05-04) |
| Record low | 638.08 ft (2015-02-20) |
| Average of all readings | 646.43 ft |
| Data span | 38.6 years (12,278 readings) |
Frequently asked questions
Is Eagle Mountain Reservoir full right now?
Eagle Mountain Reservoir is at 79.2% of conservation capacity as of 2026-08-15, which we classify as below full.Over the past 30 days the level has fallen 1.65 ft.
What is the water level at Eagle Mountain Reservoir today?
The most recent reading is 644.61 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 Eagle Mountain Reservoir has ever been?
The highest level in our records is 656.94 ft on 1990-05-04. The lowest is 638.08 ft on 2015-02-20. Our record covers about 38.6 years of readings.
Is Eagle Mountain Reservoir low for this time of year?
Compared with every August in our records, the current level is higher than 24% 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 Eagle Mountain Reservoir 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. Eagle Mountain Reservoir has fallen 1.65 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.
How much has Eagle Mountain Reservoir changed over the past year?
The level is -2.87 ft compared with this date last year (644.61 ft today). The full-history chart above covers 38.6 years, with a record high of 656.94 ft and a record low of 638.08 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.