Water level
Joe Pool Lake water level
Joe Pool Lake is at 520.10 ft (1.9 ft below the 522.0 ft full pool), about 92% full as of Sep 9, 2026. Live readings, trend, history and what the level means for swimming and boat ramps.
Recent readings
Daily values from USGS gauge 08049800.
| Date | Elevation (ft) | Change |
|---|---|---|
| 2026-09-08 | 520.13 | -0.03 |
| 2026-09-07 | 520.16 | -0.03 |
| 2026-09-06 | 520.19 | -0.03 |
| 2026-09-05 | 520.22 | -0.03 |
| 2026-09-04 | 520.25 | -0.04 |
| 2026-09-03 | 520.29 | -0.03 |
| 2026-09-02 | 520.32 | -0.03 |
| 2026-09-01 | 520.35 |
Operating levels set by the Corps of Engineers
Reference elevations published by the SWF district for this project.
| Reference level | Elevation |
|---|---|
| Bottom of Inactive | 456.0 ft |
| Design Capacity | 559.5 ft |
| Spillway Crest | 541.0 ft |
| Streambed | 456.0 ft |
| Top of Conservation | 522.0 ft |
| Top of Dam | 564.5 ft |
| Top of Flood | 536.0 ft |
| Top of Inactive | 493.8 ft |
| Top of Inactive | 466.0 ft |
What this level means
Readings come from station 08049800 (Joe Pool Lk nr Duncanville, TX). The last value stored here, 520.10 ft, is from 2026-09-09. The agency sets full pool at 522.0 ft. Conservation capacity is 149,629 acre-feet. The Corps of Engineers puts the top of the flood pool at 536.0 ft. The top of the dam sits at 564.5 ft. That put the reservoir at 92% of its conservation capacity. Over the record shown on the level page the gauge has moved between 520.13 ft and 524.63 ft (low on 2026-09-08, high on 2026-06-08). Water level decides what is usable on the shoreline, from beach width to ramp access.
How this reading is taken
USGS gauge 08049800 measures the water surface and publishes the value continuously. This page stores the latest reading at build time and refreshes the record daily, so the figure above is a real measurement rather than a model or an estimate.
Full pool for Joe Pool Lake is 522.0 ft, so the gap between the reading and that number is what the reservoir is missing.
Elevations are given in feet above the gauge datum used by the operating agency. Two lakes are only comparable with each other through how full they are, not through their raw elevation, because each dam sits at a different height.
Water level questions
What is the current water level at Joe Pool Lake?
The latest reading is 520.10 ft, 1.9 ft below the 522.0 ft full pool, from USGS gauge 08049800.
How full is Joe Pool Lake?
It was last reported at 92% of conservation capacity, holding 137,472 of 149,629 acre-feet.
What is full pool at Joe Pool Lake?
Full pool is 522.0 ft. Water above that level is flood storage and is released as conditions allow.
Sources
Every figure on this page comes from one of these public sources.