Lake Nacogdoches: 78.7% full as of 2022-12-09

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2022-12-09 78.7 274.80 31,122 31,120 39,522 1,832
1 day prior 2022-12-08 78.8 274.81 31,140 31,138 39,522 1,832
2 days prior 2022-12-07 78.8 274.82 31,158 31,156 39,522 1,833
1 week prior 2022-12-02 78.9 274.84 31,195 31,193 39,522 1,834
1 month prior 2022-11-09 79.1 274.87 31,250 31,248 39,522 1,836
3 months prior 2022-09-09 85.0 276.11 33,584 33,582 39,522 1,937
6 months prior 2022-06-09 95.1 278.09 37,575 37,573 39,522 2,098
1 year prior 2021-12-09 87.8 276.68 34,701 34,699 39,522 1,980
*

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 2022-12-10 02:45 274.80 279.00 -4.20
1 hour prior 2022-12-10 01:45 274.80 279.00 -4.20
2 hours prior 2022-12-10 00:45 274.79 279.00 -4.21
6 hours prior 2022-12-09 20:45 274.80 279.00 -4.20
12 hours prior 2022-12-09 14:45 274.81 279.00 -4.19
24 hours prior 2022-12-09 02:45 274.80 279.00 -4.20
48 hours prior 2022-12-08 02:45 274.81 279.00 -4.19
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1977-01-01
Gauge USGS:08036700
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

Lake Location