Lake Nacogdoches: 91.5% full as of 2026-08-08
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 | 2026-08-08 | 91.5 | 277.40 | 36,147 | 36,145 | 39,522 | 2,040 |
| 1 day prior | 2026-08-07 | 91.6 | 277.43 | 36,208 | 36,206 | 39,522 | 2,042 |
| 2 days prior | 2026-08-06 | 91.8 | 277.46 | 36,270 | 36,268 | 39,522 | 2,045 |
| 1 week prior | 2026-08-01 | 92.7 | 277.64 | 36,639 | 36,637 | 39,522 | 2,060 |
| 1 month prior | 2026-07-08 | 95.7 | 278.21 | 37,827 | 37,825 | 39,522 | 2,109 |
| 3 months prior | 2026-05-08 | 97.5 | 278.54 | 38,528 | 38,526 | 39,522 | 2,140 |
| 6 months prior | 2026-02-08 | 93.0 | 277.69 | 36,742 | 36,740 | 39,522 | 2,064 |
| 1 year prior | 2025-08-08 | 96.2 | 278.30 | 38,017 | 38,015 | 39,522 | 2,118 |
*
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 | 2026-08-08 22:45 | 277.46 | 279.00 | -1.54 |
| 1 hour prior | 2026-08-08 21:45 | 277.45 | 279.00 | -1.55 |
| 2 hours prior | 2026-08-08 20:45 | 277.46 | 279.00 | -1.54 |
| 6 hours prior | 2026-08-08 16:45 | 277.39 | 279.00 | -1.61 |
| 12 hours prior | 2026-08-08 10:45 | 277.40 | 279.00 | -1.60 |
| 24 hours prior | 2026-08-07 22:45 | 277.41 | 279.00 | -1.59 |
| 48 hours prior | 2026-08-06 22:45 | 277.44 | 279.00 | -1.56 |
*
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
