B. A. Steinhagen Lake: 99.9% full as of 2026-08-21
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 | 2026-08-21 | 99.9 | 82.99 | 69,158 | 69,085 | 69,186 | 10,226 |
| Yesterday | 2026-08-20 | 98.5 | 82.90 | 68,241 | 68,168 | 69,186 | 10,143 |
| 2 days ago | 2026-08-19 | 98.2 | 82.88 | 68,039 | 67,966 | 69,186 | 10,124 |
| 1 week ago | 2026-08-14 | 99.3 | 82.95 | 68,750 | 68,677 | 69,186 | 10,189 |
| 1 month ago | 2026-07-21 | 95.6 | 82.70 | 66,230 | 66,157 | 69,186 | 9,959 |
| 3 months ago | 2026-05-21 | 95.3 | 82.68 | 66,032 | 65,959 | 69,186 | 9,940 |
| 6 months ago | 2026-02-21 | 98.2 | 82.88 | 68,039 | 67,966 | 69,186 | 10,124 |
| 1 year ago | 2025-08-21 | 94.2 | 82.60 | 65,239 | 65,166 | 69,186 | 9,867 |
*
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 | 2026-08-21 11:00 | 82.93 | 83.00 | -0.07 |
| 1 hour prior | 2026-08-21 10:00 | 82.94 | 83.00 | -0.06 |
| 2 hours prior | 2026-08-21 09:00 | 82.94 | 83.00 | -0.06 |
| 6 hours prior | 2026-08-21 05:00 | 82.98 | 83.00 | -0.02 |
| 12 hours prior | 2026-08-20 23:00 | 82.93 | 83.00 | -0.07 |
| 24 hours prior | 2026-08-20 11:00 | 82.90 | 83.00 | -0.10 |
| 48 hours prior | 2026-08-19 11:00 | 82.90 | 83.00 | -0.10 |
*
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
