Recent changes

2017-06-05: The Texas Water Development Board has issued experimental May-July 2017 storage forecasts for Aquilla Lake, Lake Limestone, and Proctor Lake.

Aquilla Lake: 100.0% full as of 2021-07-28

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)
Today 2021-07-28 100.0 538.07 45,056 43,243 43,243 3,152
Yesterday 2021-07-27 100.0 538.09 45,119 43,243 43,243 3,154
2 days ago 2021-07-26 100.0 538.10 45,150 43,243 43,243 3,155
1 week ago 2021-07-21 100.0 538.26 45,657 43,243 43,243 3,178
1 month ago 2021-06-28 98.1 537.23 42,450 42,414 43,243 3,054
3 months ago 2021-04-28 98.0 537.22 42,420 42,384 43,243 3,053
6 months ago 2021-01-28 93.3 536.55 40,401 40,365 43,243 2,975
1 year ago 2020-07-28 99.9 537.48 43,217 43,181 43,243 3,082
*

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 2021-07-28 20:30 538.05 537.50 0.55 into flood pool
1 hour prior 2021-07-28 19:30 538.05 537.50 0.55 into flood pool
2 hours prior 2021-07-28 18:30 538.05 537.50 0.55 into flood pool
6 hours prior 2021-07-28 14:30 538.06 537.50 0.56 into flood pool
12 hours prior 2021-07-28 08:30 538.07 537.50 0.57 into flood pool
24 hours prior 2021-07-27 20:30 538.08 537.50 0.58 into flood pool
48 hours prior 2021-07-26 20:30 538.09 537.50 0.59 into flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1983-01-01
Vertical datum NGVD29
Gauge USGS:08093350
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

Lake Location