Texas · City of San Angelo / Bureau of Reclamation

Twin Buttes Reservoir water level

Today's reading against full pool and Twin Buttes Reservoir's own seasonal history.

FULL POOL 1880 1900 1920 1940
Elevation, feet (above mean sea level)

as of August 20, 2026

1898.10 ft above mean sea level

7% full share of conservation capacity, as reported with the gauge reading

level 42.1 ft below full pool — typical for mid-August

Reading from Texas Water Development Board — Water Data for Texas (Water Data for Texas — twin-buttes); it refreshes with each site update rather than live.


Twin Buttes Reservoir through the year

The band is the lake's own normal: where the level has run on each calendar day, 2000–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.

full pool 1900 1920 1940 JFMAMJJASOND
Median and normal range by day of year, 2000–2026 · elevation, feet (above mean sea level)

This year vs the years that matter

This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.

full pool 1880 1900 1920 1940 JFMAMJJASOND
  • 2026 (this year)
  • 2025 (last year)
  • 2019 (wettest on record)
  • 2013 (driest on record)

Full pool, datum, and the gauge

"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.

Full pool 1940.20 ft above mean sea level · per Water Data for Texas — Twin Buttes Reservoir
Conservation capacity 182,454 acre-feet · per Water Data for Texas — Twin Buttes Reservoir
Gauge Water Data for Texas — twin-buttes · Texas Water Development Board — Water Data for Texas
Datum ft above mean sea level
Last verified August 20, 2026

LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.

Quick answers

How full is Twin Buttes Reservoir right now?

Twin Buttes Reservoir is at 1898.10 ft (above mean sea level) as of August 20, 2026 — 42.1 ft below full pool — typical for mid-August The lake is holding 7% of its conservation capacity.

What percent full is Twin Buttes Reservoir?

As of August 20, 2026, Twin Buttes Reservoir is holding 7% of its conservation capacity, per Water Data for Texas — Twin Buttes Reservoir.

Is Twin Buttes Reservoir full?

Not quite — at 1898.10 ft, Twin Buttes Reservoir is 42.1 ft below its full pool of 1940.20 ft (above mean sea level). The lake is holding 7% of its conservation capacity.

What is full pool for Twin Buttes Reservoir?

Full pool (the conservation pool) for Twin Buttes Reservoir is 1940.20 ft above mean sea level, per Water Data for Texas — Twin Buttes Reservoir. Levels above it use flood storage; levels below it are drawdown.