Lake Nacogdoches: 83.2% full as of 2026-10-21
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 | 2026-10-21 | 83.2 | 275.75 | 32,893 | 32,891 | 39,522 | 1,901 |
| Yesterday | 2026-10-20 | 83.3 | 275.76 | 32,912 | 32,910 | 39,522 | 1,902 |
| 2 days ago | 2026-10-19 | 83.4 | 275.79 | 32,969 | 32,967 | 39,522 | 1,905 |
| 1 week ago | 2026-10-14 | 84.3 | 275.98 | 33,333 | 33,331 | 39,522 | 1,926 |
| 1 month ago | 2026-09-21 | 86.1 | 276.34 | 34,032 | 34,030 | 39,522 | 1,955 |
| 3 months ago | 2026-07-21 | 94.6 | 278.01 | 37,407 | 37,405 | 39,522 | 2,091 |
| 6 months ago | 2026-04-21 | 96.9 | 278.44 | 38,315 | 38,313 | 39,522 | 2,131 |
| 1 year ago | 2025-10-21 | 91.8 | 277.46 | 36,270 | 36,268 | 39,522 | 2,045 |
*
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 | 2026-10-21 03:45 | 275.75 | 279.00 | -3.25 |
| 1 hour prior | 2026-10-21 02:45 | 275.75 | 279.00 | -3.25 |
| 2 hours prior | 2026-10-21 01:45 | 275.75 | 279.00 | -3.25 |
| 6 hours prior | 2026-10-20 21:45 | 275.75 | 279.00 | -3.25 |
| 12 hours prior | 2026-10-20 15:45 | 275.76 | 279.00 | -3.24 |
| 24 hours prior | 2026-10-20 03:45 | 275.77 | 279.00 | -3.23 |
| 48 hours prior | 2026-10-19 03:45 | 275.81 | 279.00 | -3.19 |
*
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
