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Lake levels › Texas › Eagle Mountain Reservoir

Eagle Mountain Reservoir water level today

643.17 ft above sea level (the reading for October 20, 2026). The lake is 73.1% full, 5.93 ft below full pool (649.10 ft). Eagle Mountain Reservoir is falling slowly: down 0.20 ft in the past 7 days and up 0.31 ft over 30 days.

Texas Water Development Board publishes one reading per day for Eagle Mountain Reservoir; today's value appears once the agency posts it, usually the next morning.

Level now643.17 ft
Percent full73.1%
vs full pool (649.1)−5.93 ft
Past 24 hours±0.00 ft
Past 7 days−0.20 ft
Past 30 days+0.31 ft
vs 1 year ago−2.92 ft

Eagle Mountain Reservoir level over the last 12 months

642644646648650 Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26 full pool 649.1
Daily elevation in feet, last 12 months.

12-month low: 642.54 ft (September 30, 2026). High: 648.55 ft (May 1, 2026). Swing: 6.01 ft.

Daily Eagle Mountain Reservoir levels, last 30 days

DateElevation (ft)Change
Oct 20, 2026643.17±0.00 ft
Oct 19, 2026643.17−0.03 ft
Oct 18, 2026643.20−0.03 ft
Oct 17, 2026643.23−0.08 ft
Oct 16, 2026643.31±0.00 ft
Oct 15, 2026643.31−0.02 ft
Oct 14, 2026643.33−0.04 ft
Oct 13, 2026643.37−0.01 ft
Oct 12, 2026643.38±0.00 ft
Oct 11, 2026643.38−0.02 ft
Oct 10, 2026643.40+0.01 ft
Oct 9, 2026643.39+0.01 ft
Oct 8, 2026643.38+0.01 ft
Oct 7, 2026643.37+0.02 ft
Oct 6, 2026643.35+0.03 ft
Oct 5, 2026643.32+0.15 ft
Oct 4, 2026643.17+0.19 ft
Oct 3, 2026642.98+0.10 ft
Oct 2, 2026642.88+0.16 ft
Oct 1, 2026642.72+0.18 ft
Sep 30, 2026642.54−0.02 ft
Sep 29, 2026642.56−0.01 ft
Sep 28, 2026642.57−0.02 ft
Sep 27, 2026642.59−0.04 ft
Sep 26, 2026642.63−0.04 ft
Sep 25, 2026642.67−0.03 ft
Sep 24, 2026642.70−0.04 ft
Sep 23, 2026642.74−0.05 ft
Sep 22, 2026642.79−0.04 ft
Sep 21, 2026642.83−0.03 ft

Monthly average levels

MonthAverageLowHigh
Nov 2025646.54646.25647.17
Dec 2025647.08646.92647.22
Jan 2026646.78646.51646.91
Feb 2026646.20645.94646.45
Mar 2026645.75645.38645.96
Apr 2026646.85645.35648.53
May 2026648.32648.08648.55
Jun 2026648.09647.57648.40
Jul 2026646.45645.83647.47
Aug 2026644.62643.74645.78
Sep 2026643.08642.54643.70
Oct 2026 *643.24642.72643.40

* partial month or year.

Eagle Mountain Reservoir year by year

YearLowHighAverage
2026 *642.54 Sep 30648.55 May 2646.04
2025643.91 Apr 18650.14 May 7646.76
2024642.05 Oct 30649.49 May 31645.02
2023 *639.91 Oct 23642.79 Dec 31641.66

Eagle Mountain Reservoir on this date in past years

YearLevel on this dateToday vs then
2025646.09 ft−2.92 ft
2024642.56 ft+0.61 ft
2023639.93 ft+3.24 ft

Highest and lowest levels on record

TWDB records for Eagle Mountain Reservoir go back to 1988. The lowest level in that record is 638.08 ft (February 20, 2015) and the highest is 656.94 ft (May 4, 1990). Today the lake is 5.09 ft above its record low. At full conservation pool it holds 185,087 acre-feet and covers about 7,666 acres.

Is Eagle Mountain Reservoir full?

Eagle Mountain Reservoir is 73.1% full by conservation storage, measured against its top of conservation pool at 649.10 ft. It would need to rise 5.93 ft to be full.

Is Eagle Mountain Reservoir rising or falling?

Eagle Mountain Reservoir is falling slowly: down 0.20 ft in the past 7 days and up 0.31 ft over 30 days. In the latest day it moved ±0.00 ft.

How does Eagle Mountain Reservoir compare with last year?

Compared with the same date last year, the lake is 2.92 ft lower (85.7% full then, 73.1% now). Two years ago on this date it stood at 642.56 ft.

Data source

Texas Water Development Board (Water Data for Texas), gauge EagleMountain; readings since Oct 16, 2023. Official source · how we collect it.

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