Inks Lake: 94.2% full as of 2026-10-22

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 2026-10-22 94.2 887.00 13,218 12,935 13,729 776
1 day prior 2026-10-21 94.4 887.03 13,242 12,959 13,729 777
2 days prior 2026-10-20 94.5 887.05 13,257 12,974 13,729 778
1 week prior 2026-10-15 95.0 887.14 13,328 13,045 13,729 784
1 month prior 2026-09-22 96.1 887.33 13,478 13,195 13,729 792
3 months prior 2026-07-22 94.3 887.01 13,226 12,943 13,729 776
6 months prior 2026-04-22 96.2 887.34 13,486 13,203 13,729 792
1 year prior 2025-10-22 56.2 878.93 7,995 7,712 13,729 526
*

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 2026-10-22 23:30 887.37 888.00 -0.63
1 hour prior 2026-10-22 22:30 887.39 888.00 -0.61
2 hours prior 2026-10-22 21:30 887.38 888.00 -0.62
6 hours prior 2026-10-22 17:30 887.00 888.00 -1.00
12 hours prior 2026-10-22 11:30 887.00 888.00 -1.00
24 hours prior 2026-10-21 23:30 887.02 888.00 -0.98
48 hours prior 2026-10-20 23:30 887.04 888.00 -0.96
*

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