Lake Brownwood: 78.7% full as of 2018-05-21

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 2018-05-21 78.7 1,420.10 101,428 101,428 128,839 5,711
Yesterday 2018-05-20 78.8 1,420.11 101,486 101,486 128,839 5,713
2 days ago 2018-05-19 78.9 1,420.14 101,657 101,657 128,839 5,719
1 week ago 2018-05-14 79.4 1,420.25 102,287 102,287 128,839 5,739
1 month ago 2018-04-21 79.8 1,420.34 102,805 102,805 128,839 5,756
3 months ago 2018-02-21 82.8 1,421.01 106,703 106,703 128,839 5,881
6 months ago 2017-11-21 86.2 1,421.75 111,103 111,103 128,839 6,005
1 year ago 2017-05-21 100.0 1,425.42 134,174 128,839 128,839 - n.a. -
*

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 2018-05-21 12:30 1,420.10 1,424.6 -4.5 below flood pool
1 hour prior 2018-05-21 11:30 1,420.10 1,424.6 -4.5 below flood pool
2 hours prior 2018-05-21 10:30 1,420.10 1,424.6 -4.5 below flood pool
6 hours prior 2018-05-21 06:30 1,420.09 1,424.6 -4.5 below flood pool
12 hours prior 2018-05-21 00:30 1,420.10 1,424.6 -4.5 below flood pool
24 hours prior 2018-05-20 12:30 1,420.11 1,424.6 -4.5 below flood pool
48 hours prior 2018-05-19 12:30 1,420.14 1,424.6 -4.5 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1933-01-01
Vertical datum NGVD29
Gauge USGS:08143000
Dead pool elevation
ending 1959-01-01
1,405.5 ft above NGVD29
Dead pool elevation
starting 1959-01-01
1,329.5 ft above NGVD29
Emergency spillway crest elevation 1,425.0 ft above NAVD88
Top of dam elevation 1,470.0 ft above NAVD88
Conservation pool elevation 1,424.6 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

Lake Location