Lake Nacogdoches: 87.8% full as of 2026-09-10
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 | 2026-09-10 | 87.8 | 276.68 | 34,701 | 34,699 | 39,522 | 1,980 |
| Yesterday | 2026-09-09 | 87.9 | 276.70 | 34,740 | 34,738 | 39,522 | 1,981 |
| 2 days ago | 2026-09-08 | 88.0 | 276.73 | 34,800 | 34,798 | 39,522 | 1,984 |
| 1 week ago | 2026-09-03 | 88.4 | 276.81 | 34,959 | 34,957 | 39,522 | 1,990 |
| 1 month ago | 2026-08-10 | 91.5 | 277.41 | 36,168 | 36,166 | 39,522 | 2,041 |
| 3 months ago | 2026-06-10 | 96.9 | 278.44 | 38,315 | 38,313 | 39,522 | 2,131 |
| 6 months ago | 2026-03-10 | 94.3 | 277.95 | 37,282 | 37,280 | 39,522 | 2,086 |
| 1 year ago | 2025-09-10 | 93.9 | 277.86 | 37,094 | 37,092 | 39,522 | 2,078 |
*
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 | 2026-09-10 21:45 | 276.66 | 279.00 | -2.34 |
| 1 hour prior | 2026-09-10 20:45 | 276.65 | 279.00 | -2.35 |
| 2 hours prior | 2026-09-10 19:45 | 276.66 | 279.00 | -2.34 |
| 6 hours prior | 2026-09-10 15:45 | 276.67 | 279.00 | -2.33 |
| 12 hours prior | 2026-09-10 09:45 | 276.67 | 279.00 | -2.33 |
| 24 hours prior | 2026-09-09 21:45 | 276.68 | 279.00 | -2.32 |
| 48 hours prior | 2026-09-08 21:45 | 276.72 | 279.00 | -2.28 |
*
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
