B. A. Steinhagen Lake: 93.5% full as of 2026-09-30
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 | 2026-09-30 | 93.5 | 82.55 | 64,748 | 64,675 | 69,186 | 9,821 |
| 1 day prior | 2026-09-29 | 94.2 | 82.60 | 65,239 | 65,166 | 69,186 | 9,867 |
| 2 days prior | 2026-09-28 | 94.9 | 82.65 | 65,735 | 65,662 | 69,186 | 9,913 |
| 1 week prior | 2026-09-23 | 97.1 | 82.80 | 67,231 | 67,158 | 69,186 | 10,051 |
| 1 month prior | 2026-08-30 | 97.5 | 82.83 | 67,534 | 67,461 | 69,186 | 10,078 |
| 3 months prior | 2026-06-30 | 94.2 | 82.60 | 65,239 | 65,166 | 69,186 | 9,867 |
| 6 months prior | 2026-03-30 | 91.5 | 82.41 | 63,381 | 63,308 | 69,186 | 9,692 |
| 1 year prior | 2025-09-30 | 97.7 | 82.84 | 67,635 | 67,562 | 69,186 | 10,088 |
*
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 | 2026-09-30 23:00 | 82.60 | 83.00 | -0.40 |
| 1 hour prior | 2026-09-30 22:00 | 82.58 | 83.00 | -0.42 |
| 2 hours prior | 2026-09-30 21:00 | 82.55 | 83.00 | -0.45 |
| 6 hours prior | 2026-09-30 17:00 | 82.44 | 83.00 | -0.56 |
| 12 hours prior | 2026-09-30 11:00 | 82.52 | 83.00 | -0.48 |
| 24 hours prior | 2026-09-29 23:00 | 82.64 | 83.00 | -0.36 |
| 48 hours prior | 2026-09-28 23:00 | 82.69 | 83.00 | -0.31 |
*
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 |
Lake Location
