Lake Nacogdoches: 92.9% full as of 2026-07-31
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 | 2026-07-31 | 92.9 | 277.68 | 36,722 | 36,720 | 39,522 | 2,063 |
| Yesterday | 2026-07-30 | 93.1 | 277.71 | 36,784 | 36,782 | 39,522 | 2,065 |
| 2 days ago | 2026-07-29 | 93.3 | 277.75 | 36,866 | 36,864 | 39,522 | 2,069 |
| 1 week ago | 2026-07-24 | 94.1 | 277.91 | 37,198 | 37,196 | 39,522 | 2,083 |
| 1 month ago | 2026-06-30 | 96.7 | 278.39 | 38,208 | 38,206 | 39,522 | 2,126 |
| 3 months ago | 2026-04-30 | 96.8 | 278.41 | 38,251 | 38,249 | 39,522 | 2,128 |
| 6 months ago | 2026-01-31 | 92.6 | 277.62 | 36,598 | 36,596 | 39,522 | 2,058 |
| 1 year ago | 2025-07-31 | 96.3 | 278.32 | 38,060 | 38,058 | 39,522 | 2,120 |
*
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 | 2026-07-31 16:45 | 277.67 | 279.00 | -1.33 |
| 1 hour prior | 2026-07-31 15:45 | 277.67 | 279.00 | -1.33 |
| 2 hours prior | 2026-07-31 14:45 | 277.68 | 279.00 | -1.32 |
| 6 hours prior | 2026-07-31 10:45 | 277.68 | 279.00 | -1.32 |
| 12 hours prior | 2026-07-31 04:45 | 277.68 | 279.00 | -1.32 |
| 24 hours prior | 2026-07-30 16:45 | 277.71 | 279.00 | -1.29 |
| 48 hours prior | 2026-07-29 16:45 | 277.74 | 279.00 | -1.26 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1977-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 235.90 ft above NGVD29 |
| Service spillway crest elevation | 279.00 ft above NGVD29 |
| Emergency spillway crest elevation | 286.10 ft above NGVD29 |
| Maximum design elevation | 298.50 ft above NGVD29 |
| Top of dam elevation | 303.00 ft above NGVD29 |
| Conservation pool elevation | 279.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
| Data Source | USGS:08036700 |
| USGS Monitoring Location | USGS:08036700 |
Lake Location
