Aquilla Lake: 85.9% full as of 2026-09-13
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-09-13 | 85.9 | 535.44 | 37,198 | 37,162 | 43,243 | 2,785 |
| Yesterday | 2026-09-12 | 86.1 | 535.47 | 37,282 | 37,246 | 43,243 | 2,790 |
| 2 days ago | 2026-09-11 | 86.4 | 535.51 | 37,393 | 37,357 | 43,243 | 2,797 |
| 1 week ago | 2026-09-06 | 88.0 | 535.75 | 38,070 | 38,034 | 43,243 | 2,843 |
| 1 month ago | 2026-08-13 | 94.8 | 536.76 | 41,028 | 40,992 | 43,243 | 2,999 |
| 3 months ago | 2026-06-13 | 98.3 | 537.26 | 42,542 | 42,506 | 43,243 | 3,058 |
| 6 months ago | 2026-03-13 | 94.1 | 536.66 | 40,729 | 40,693 | 43,243 | 2,988 |
| 1 year ago | 2025-09-13 | 95.5 | 536.86 | 41,328 | 41,292 | 43,243 | 3,010 |
*
Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.
**
Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.
Most Recent Instantaneous Water Level
| Date/time |
Water Level (ft) |
Conservation Pool Elevation (ft) |
Height Above Conservation Pool (ft) |
|
|---|---|---|---|---|
| Most recent | 2026-09-13 18:30 | 535.43 | 537.50 | -2.07 |
| 1 hour prior | 2026-09-13 17:30 | 535.43 | 537.50 | -2.07 |
| 2 hours prior | 2026-09-13 16:30 | 535.43 | 537.50 | -2.07 |
| 6 hours prior | 2026-09-13 12:30 | 535.43 | 537.50 | -2.07 |
| 12 hours prior | 2026-09-13 06:30 | 535.45 | 537.50 | -2.05 |
| 24 hours prior | 2026-09-12 18:30 | 535.46 | 537.50 | -2.04 |
| 48 hours prior | 2026-09-11 18:30 | 535.51 | 537.50 | -1.99 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1983-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 503.00 ft above NGVD29 |
| Emergency spillway crest elevation | 564.50 ft above NGVD29 |
| Flood pool elevation | 556.00 ft above NGVD29 |
| Maximum design elevation | 577.50 ft above NGVD29 |
| Top of dam elevation | 582.50 ft above NGVD29 |
| Conservation pool elevation | 537.50 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1983-04-01 (source: USGS)
1995-10-01 (source: TWDB)
: GIS Data
2002-04-01 (source: TWDB)
: GIS Data
2008-03-01 (source: TWDB)
: GIS Data
2014-07-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08093350 |
| USGS Monitoring Location | USGS:08093350 |
Lake Location
