Inks Lake: 95.2% full as of 2026-09-12

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 2026-09-12 95.2 887.17 13,351 13,068 13,729 789
Yesterday 2026-09-11 95.1 887.16 13,343 13,060 13,729 789
2 days ago 2026-09-10 95.0 887.14 13,328 13,045 13,729 784
1 week ago 2026-09-05 94.8 887.10 13,296 13,013 13,729 781
1 month ago 2026-08-12 94.6 887.07 13,273 12,990 13,729 780
3 months ago 2026-06-12 94.0 886.97 13,195 12,912 13,729 774
6 months ago 2026-03-12 95.9 887.29 13,446 13,163 13,729 792
1 year ago 2025-09-12 94.2 887.00 13,218 12,935 13,729 776
*

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 2026-09-12 15:30 887.15 888.00 -0.85
1 hour prior 2026-09-12 14:30 887.16 888.00 -0.84
2 hours prior 2026-09-12 13:30 887.16 888.00 -0.84
6 hours prior 2026-09-12 09:30 887.17 888.00 -0.83
12 hours prior 2026-09-12 03:30 887.18 888.00 -0.82
24 hours prior 2026-09-11 15:30 887.14 888.00 -0.86
48 hours prior 2026-09-10 15:30 887.12 888.00 -0.88
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1938-01-01
Vertical datum NAVD88 +0.31
Dead pool elevation 844.50 ft above NAVD88 +0.31
Emergency spillway crest elevation 888.32 ft above NAVD88 +0.31
Top of dam elevation 922.00 ft above NAVD88 +0.31
Conservation pool elevation 888.00 ft above NAVD88 +0.31
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2007-04-01 (source: TWDB) : GIS Data
2021-08-01 (source: TWDB) : GIS Data
Data Source LCRA:1999

Lake Location