Lake Nacogdoches: 82.3% full as of 2026-10-31

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 2026-10-31 82.3 275.55 32,514 32,512 39,522 1,883
Yesterday 2026-10-30 82.1 275.51 32,439 32,437 39,522 1,880
2 days ago 2026-10-29 82.2 275.53 32,477 32,475 39,522 1,882
1 week ago 2026-10-24 82.6 275.63 32,665 32,663 39,522 1,890
1 month ago 2026-09-30 84.8 276.08 33,526 33,524 39,522 1,935
3 months ago 2026-07-31 92.9 277.68 36,722 36,720 39,522 2,063
6 months ago 2026-04-30 96.8 278.41 38,251 38,249 39,522 2,128
1 year ago 2025-10-31 91.3 277.37 36,086 36,084 39,522 2,038
*

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 2026-10-31 13:45 275.62 279.00 -3.38
1 hour prior 2026-10-31 12:45 275.61 279.00 -3.39
2 hours prior 2026-10-31 11:45 275.62 279.00 -3.38
6 hours prior 2026-10-31 07:45 275.60 279.00 -3.40
12 hours prior 2026-10-31 01:45 275.49 279.00 -3.51
24 hours prior 2026-10-30 13:45 275.50 279.00 -3.50
48 hours prior 2026-10-29 13:45 275.53 279.00 -3.47
*

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

Elevation-Area-Capacity Curves

1977-01-01 (source: USGS)
1994-03-01 (source: TWDB) : GIS Data
Data Source USGS:08036700
USGS Monitoring Location USGS:08036700

Lake Location