Texas · USACE Fort Worth District

Sam Rayburn Reservoir water level

Today's reading against full pool and Sam Rayburn Reservoir's own seasonal history.

FULL POOL 160 165
Elevation, feet (NGVD29)

as of August 14, 2026

156.04 ft NGVD29

level 8.4 ft below full pool — unusually low for mid-August

Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 08039300) and updates live when you load this page.


Sam Rayburn 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 155 160 165 170 JFMAMJJASOND
Median and normal range by day of year, 2000–2026 · elevation, feet (NGVD29)

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 150 160 170 JFMAMJJASOND
  • 2019 (wettest on record)
  • 2011 (driest on record)
  • 2025 (last year)
  • 2026 (this year)

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 164.40 ft NGVD29 · per USACE Fort Worth District full-pool reference
Conservation capacity 2,857,077 acre-feet · per USACE Fort Worth District capacity reference
Gauge USGS gauge 08039300 · U.S. Geological Survey National Water Information System
Datum NGVD29 — USGS param 62614 ft NGVD29
Last verified August 15, 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 Sam Rayburn Reservoir right now?

Sam Rayburn Reservoir is at 156.04 ft (NGVD29) as of August 14, 2026 — 8.4 ft below full pool — unusually low for mid-August

Is Sam Rayburn Reservoir full?

Not quite — at 156.04 ft, Sam Rayburn Reservoir is 8.4 ft below its full pool of 164.40 ft (NGVD29).

What is full pool for Sam Rayburn Reservoir?

Full pool (the conservation pool) for Sam Rayburn Reservoir is 164.40 ft NGVD29, per USACE Fort Worth District full-pool reference. Levels above it use flood storage; levels below it are drawdown.