Water level
Lake Granbury water level
Lake Granbury is at 690.59 ft (2.1 ft below the 692.7 ft full pool), about 88% 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 08090900.
| Date | Elevation (ft) | Change |
|---|---|---|
| 2026-09-08 | 690.63 | -0.04 |
| 2026-09-07 | 690.67 | -0.03 |
| 2026-09-06 | 690.70 | -0.02 |
| 2026-09-05 | 690.72 | -0.01 |
| 2026-09-04 | 690.73 | -0.01 |
| 2026-09-03 | 690.74 | -0.04 |
| 2026-09-02 | 690.78 | -0.02 |
| 2026-09-01 | 690.80 |
Operating levels set by the Corps of Engineers
Reference elevations published by the SWF district for this project.
| Reference level | Elevation |
|---|---|
| Streambed | 625.0 ft |
| Top of Conservation | 692.7 ft |
| Top of Inactive | 627.0 ft |
| Top of Inactive | 640.0 ft |
| Streambed | 625.0 ft |
| Top of Conservation | 692.7 ft |
| Top of Dam | 707.0 ft |
| Top of Inactive | 627.0 ft |
| Top of Inactive | 640.0 ft |
| Top of Induced Surcharge | 700.0 ft |
What this level means
Readings come from station 08090900 (Lk Granbury nr Granbury, TX). Conservation capacity is 132,949 acre-feet. The agency sets full pool at 692.7 ft. That put the reservoir at 88% of its conservation capacity. Over the record shown on the level page the gauge has moved between 690.63 ft and 692.80 ft (low on 2026-09-08, high on 2026-06-07). The top of the dam sits at 707.0 ft. The last value stored here, 690.59 ft, is from 2026-09-09. A low pool exposes stumps and mud in the shallow arms of the lake.
How this reading is taken
USGS gauge 08090900 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 Lake Granbury is 692.7 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 Lake Granbury?
The latest reading is 690.59 ft, 2.1 ft below the 692.7 ft full pool, from USGS gauge 08090900.
How full is Lake Granbury?
It was last reported at 88% of conservation capacity, holding 116,592 of 132,949 acre-feet.
What is full pool at Lake Granbury?
Full pool is 692.7 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.