Lake Texana: 97.5% full as of 2024-04-21

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 2024-04-21 97.5 43.61 160,214 155,001 158,975 10,111
Yesterday 2024-04-20 97.1 43.54 159,507 154,294 158,975 10,086
2 days ago 2024-04-19 97.1 43.54 159,507 154,294 158,975 10,086
1 week ago 2024-04-14 99.2 43.88 162,957 157,744 158,975 10,209
1 month ago 2024-03-21 96.7 43.49 159,004 153,791 158,975 10,067
3 months ago 2024-01-21 77.3 40.18 128,022 122,809 158,975 8,644
6 months ago 2023-10-21 74.5 39.67 123,656 118,443 158,975 8,474
1 year ago 2023-04-21 99.7 43.95 163,673 158,460 158,975 10,236
*

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 2024-04-21 22:00 43.53 44.00 -0.47
1 hour prior 2024-04-21 21:00 43.53 44.00 -0.47
2 hours prior 2024-04-21 20:00 43.55 44.00 -0.45
6 hours prior 2024-04-21 16:00 43.60 44.00 -0.40
12 hours prior 2024-04-21 10:00 43.66 44.00 -0.34
24 hours prior 2024-04-20 22:00 43.61 44.00 -0.39
48 hours prior 2024-04-19 22:00 43.53 44.00 -0.47
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1981-01-01
Vertical datum NGVD29
Dead pool elevation 14.00 ft above NGVD29
Service spillway crest elevation 23.00 ft above NGVD29
Top of flood gate elevation 45.00 ft above NGVD29
Emergency spillway crest elevation 45.00 ft above NGVD29
Maximum design elevation 47.00 ft above NGVD29
Top of dam elevation 55.00 ft above NGVD29
Conservation pool elevation 44.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2000-08-01 (source: TWDB) : GIS Data
2010-03-01 (source: TWDB) : GIS Data
2020-08-01 (source: TWDB) : GIS Data
Data Source USGS:08164525

Lake Location