Aquilla Lake: 90.6% full as of 2025-01-22

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

Historical Data

Date Percent Full Mean Water Level
(ft) 		Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft) 		Surface Area
(acres)
Most recent 2025-01-22 90.6 536.14 39,193 39,157 43,243 2,913
1 day prior 2025-01-21 90.8 536.17 39,281 39,245 43,243 2,918
2 days prior 2025-01-20 90.8 536.18 39,310 39,274 43,243 2,919
1 week prior 2025-01-15 91.0 536.21 39,397 39,361 43,243 2,924
1 month prior 2024-12-22 79.3 534.38 34,329 34,293 43,243 2,633
3 months prior 2024-10-22 83.5 535.05 36,123 36,087 43,243 2,727
6 months prior 2024-07-22 97.5 537.15 42,206 42,170 43,243 3,044
1 year prior 2024-01-22 96.0 536.94 41,570 41,534 43,243 3,020
*

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 2025-01-23 02:30 536.15 537.50 -1.35 below flood pool
1 hour prior 2025-01-23 01:30 536.15 537.50 -1.35 below flood pool
2 hours prior 2025-01-23 00:30 536.15 537.50 -1.35 below flood pool
6 hours prior 2025-01-22 20:30 536.14 537.50 -1.36 below flood pool
12 hours prior 2025-01-22 14:30 536.12 537.50 -1.38 below flood pool
24 hours prior 2025-01-22 02:30 536.15 537.50 -1.35 below flood pool
48 hours prior 2025-01-21 02:30 536.17 537.50 -1.33 below flood pool
*

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

2008-03-01 (source: TWDB) : GIS Data
2014-07-01 (source: TWDB) : GIS Data
Data Source USGS:08093350

Lake Location