Lake Brownwood: 100.0% full as of 2024-11-21

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 2024-11-21 100.0 1,425.27 133,377 130,868 130,868 6,870
Yesterday 2024-11-20 100.0 1,425.34 133,858 130,868 130,868 6,884
2 days ago 2024-11-19 100.0 1,425.43 134,479 130,868 130,868 6,903
1 week ago 2024-11-14 100.0 1,425.99 138,376 130,868 130,868 - n.a. -
1 month ago 2024-10-21 98.4 1,424.59 128,753 128,753 130,868 6,730
3 months ago 2024-08-21 80.5 1,420.90 105,321 105,321 130,868 5,971
6 months ago 2024-05-21 77.9 1,420.32 101,893 101,893 130,868 5,851
1 year ago 2023-11-21 60.5 1,416.14 79,232 79,232 130,868 4,991
*

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 2024-11-21 22:30 1,425.25 1,424.90 0.35
1 hour prior 2024-11-21 21:30 1,425.24 1,424.90 0.34
2 hours prior 2024-11-21 20:30 1,425.24 1,424.90 0.34
6 hours prior 2024-11-21 16:30 1,425.26 1,424.90 0.36
12 hours prior 2024-11-21 10:30 1,425.27 1,424.90 0.37
24 hours prior 2024-11-20 22:30 1,425.29 1,424.90 0.39
48 hours prior 2024-11-19 22:30 1,425.40 1,424.90 0.50
*

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