Lake Brownwood: 84.6% full as of 2026-09-11
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 | 2026-09-11 | 84.6 | 1,421.80 | 110,778 | 110,778 | 130,868 | 6,156 |
| Yesterday | 2026-09-10 | 84.7 | 1,421.82 | 110,901 | 110,901 | 130,868 | 6,160 |
| 2 days ago | 2026-09-09 | 84.9 | 1,421.85 | 111,086 | 111,086 | 130,868 | 6,166 |
| 1 week ago | 2026-09-04 | 85.6 | 1,422.01 | 112,075 | 112,075 | 130,868 | 6,199 |
| 1 month ago | 2026-08-11 | 89.7 | 1,422.86 | 117,419 | 117,419 | 130,868 | 6,374 |
| 3 months ago | 2026-06-11 | 82.7 | 1,421.38 | 108,211 | 108,211 | 130,868 | 6,069 |
| 6 months ago | 2026-03-11 | 83.6 | 1,421.57 | 109,368 | 109,368 | 130,868 | 6,108 |
| 1 year ago | 2025-09-11 | 92.4 | 1,423.40 | 120,890 | 120,890 | 130,868 | 6,485 |
*
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 | 2026-09-11 03:30 | 1,421.80 | 1,424.90 | -3.10 |
| 1 hour prior | 2026-09-11 02:30 | 1,421.80 | 1,424.90 | -3.10 |
| 2 hours prior | 2026-09-11 01:30 | 1,421.80 | 1,424.90 | -3.10 |
| 6 hours prior | 2026-09-10 21:30 | 1,421.81 | 1,424.90 | -3.09 |
| 12 hours prior | 2026-09-10 15:30 | 1,421.82 | 1,424.90 | -3.08 |
| 24 hours prior | 2026-09-10 03:30 | 1,421.83 | 1,424.90 | -3.07 |
| 48 hours prior | 2026-09-09 03:30 | 1,421.86 | 1,424.90 | -3.04 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1933-01-01 |
|
Vertical datum
|
NAVD88 |
|
Vertical datum
|
NGVD29 |
|
Dead pool elevation |
1,329.50 ft above NGVD29 |
|
Dead pool elevation |
1,405.50 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 |
| USGS Monitoring Location | USGS:08143000 |
Lake Location
