Lake Brownwood: 85.8% full as of 2024-07-18

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 2024-07-18 85.8 1,422.04 112,261 112,261 130,868 6,205
1 day prior 2024-07-17 85.9 1,422.06 112,386 112,386 130,868 6,209
2 days prior 2024-07-16 86.1 1,422.10 112,634 112,634 130,868 6,217
1 week prior 2024-07-11 86.9 1,422.28 113,757 113,757 130,868 6,254
1 month prior 2024-06-18 89.6 1,422.84 117,291 117,291 130,868 6,370
3 months prior 2024-04-18 58.8 1,415.68 76,958 76,958 130,868 4,897
6 months prior 2024-01-18 59.6 1,415.90 78,040 78,040 130,868 4,942
1 year prior 2023-07-18 72.4 1,419.06 94,684 94,684 130,868 5,592
*

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 2024-07-19 02:30 1,422.01 1,424.90 -2.89
1 hour prior 2024-07-19 01:30 1,422.02 1,424.90 -2.88
2 hours prior 2024-07-19 00:30 1,422.02 1,424.90 -2.88
6 hours prior 2024-07-18 20:30 1,422.03 1,424.90 -2.87
12 hours prior 2024-07-18 14:30 1,422.04 1,424.90 -2.86
24 hours prior 2024-07-18 02:30 1,422.05 1,424.90 -2.85
48 hours prior 2024-07-17 02:30 1,422.07 1,424.90 -2.83
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1933-01-01
Vertical datum
Start date to end date: 1999-02-24 to 2022-05-20
NGVD29
Vertical datum
Start date: 2022-05-21
NAVD88
Dead pool elevation
End date: 1959-01-01
1,405.50 ft above NGVD29
Dead pool elevation
Start date: 1959-01-01
1,329.50 ft above NGVD29
Emergency spillway crest elevation 1,425.00 ft above NAVD88
Top of dam elevation 1,470.00 ft above NAVD88
Conservation pool elevation 1,424.60 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1997-04-01 (source: TWDB) : GIS Data
2013-06-01 (source: TWDB) : GIS Data
Data Source USGS:08143000

Lake Location