B. A. Steinhagen Lake: 99.0% full as of 2026-09-12
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 | 2026-09-12 | 99.0 | 82.93 | 68,546 | 68,473 | 69,186 | 10,170 |
| Yesterday | 2026-09-11 | 98.8 | 82.92 | 68,444 | 68,371 | 69,186 | 10,161 |
| 2 days ago | 2026-09-10 | 98.8 | 82.92 | 68,444 | 68,371 | 69,186 | 10,161 |
| 1 week ago | 2026-09-05 | 98.1 | 82.87 | 67,938 | 67,865 | 69,186 | 10,115 |
| 1 month ago | 2026-08-12 | 96.2 | 82.74 | 66,631 | 66,558 | 69,186 | 9,996 |
| 3 months ago | 2026-06-12 | 93.1 | 82.52 | 64,453 | 64,380 | 69,186 | 9,793 |
| 6 months ago | 2026-03-12 | 94.6 | 82.63 | 65,536 | 65,463 | 69,186 | 9,894 |
| 1 year ago | 2025-09-12 | 96.9 | 82.79 | 67,131 | 67,058 | 69,186 | 10,042 |
*
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 | 2026-09-12 22:00 | 82.92 | 83.00 | -0.08 |
| 1 hour prior | 2026-09-12 21:00 | 82.90 | 83.00 | -0.10 |
| 2 hours prior | 2026-09-12 20:00 | 82.86 | 83.00 | -0.14 |
| 6 hours prior | 2026-09-12 16:00 | 82.86 | 83.00 | -0.14 |
| 12 hours prior | 2026-09-12 10:00 | 82.92 | 83.00 | -0.08 |
| 24 hours prior | 2026-09-11 22:00 | 82.94 | 83.00 | -0.06 |
| 48 hours prior | 2026-09-10 22:00 | 82.92 | 83.00 | -0.08 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1951-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 52.00 ft above NGVD29 |
| Service spillway crest elevation | 50.00 ft above NGVD29 |
| Emergency spillway crest elevation | 85.00 ft above NGVD29 |
| Maximum design elevation | 93.31 ft above NGVD29 |
| Top of dam elevation | 95.00 ft above NGVD29 |
| Conservation pool elevation | 83.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1951-01-01 (source: USGS)
2003-05-01 (source: TWDB)
: GIS Data
2011-10-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08040000 |
| USGS Monitoring Location | USGS:08040000 |