Lake Sulphur Springs: 82.6% full as of 2026-11-06
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 | 2026-11-06 | 82.6 | 457.18 | 14,666 | 14,666 | 17,747 | - n.a. - |
| Yesterday | 2026-11-05 | 82.7 | 457.19 | 14,683 | 14,683 | 17,747 | - n.a. - |
| 2 days ago | 2026-11-04 | 82.8 | 457.20 | 14,699 | 14,699 | 17,747 | - n.a. - |
| 1 week ago | 2026-10-30 | 83.0 | 457.22 | 14,732 | 14,732 | 17,747 | - n.a. - |
| 1 month ago | 2026-10-06 | 86.3 | 457.58 | 15,324 | 15,324 | 17,747 | - n.a. - |
| 3 months ago | 2026-08-06 | 97.2 | 458.68 | 17,255 | 17,255 | 17,747 | - n.a. - |
| 6 months ago | 2026-05-06 | 92.5 | 458.22 | 16,416 | 16,416 | 17,747 | - n.a. - |
| 1 year ago | 2025-11-06 | 78.6 | 456.72 | 13,954 | 13,954 | 17,747 | - 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 | 2026-11-06 10:30 | 457.18 | 458.95 | -1.77 |
| 1 hour prior | 2026-11-06 09:30 | 457.17 | 458.95 | -1.78 |
| 2 hours prior | 2026-11-06 08:30 | 457.17 | 458.95 | -1.78 |
| 6 hours prior | 2026-11-06 04:30 | 457.18 | 458.95 | -1.77 |
| 12 hours prior | 2026-11-05 22:30 | 457.18 | 458.95 | -1.77 |
| 24 hours prior | 2026-11-05 10:30 | 457.19 | 458.95 | -1.76 |
| 48 hours prior | 2026-11-04 10:30 | 457.20 | 458.95 | -1.75 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1973-01-01 |
| Vertical datum | NGVD29 |
| Service spillway crest elevation | 441.00 ft above NGVD29 |
| Service spillway crest elevation | 457.00 ft above NGVD29 |
| Emergency spillway crest elevation | 462.00 ft above NGVD29 |
| Top of dam elevation | 474.00 ft above NGVD29 |
| Conservation pool elevation | 458.95 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1973-01-01 (source: USGS)
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|
| Data Source | USGS:07343460 |
| USGS Monitoring Location | USGS:07343460 |
Lake Location
