Inks Lake: 95.4% full as of 2025-04-23

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 2025-04-23 95.4 887.21 13,383 13,100 13,729 790
1 day prior 2025-04-22 95.2 887.17 13,351 13,068 13,729 789
2 days prior 2025-04-21 97.2 887.51 13,621 13,338 13,729 795
1 week prior 2025-04-16 95.3 887.19 13,367 13,084 13,729 790
1 month prior 2025-03-23 96.1 887.32 13,470 13,187 13,729 792
3 months prior 2025-01-23 94.5 887.05 13,257 12,974 13,729 778
6 months prior 2024-10-23 94.8 887.11 13,304 13,021 13,729 782
1 year prior 2024-04-23 95.0 887.13 13,320 13,037 13,729 784
*

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 2025-04-23 23:00 887.21 888.00 -0.79
1 hour prior 2025-04-23 22:00 887.14 888.00 -0.86
2 hours prior 2025-04-23 21:00 - n.a. - - n.a. - - n.a. -
6 hours prior 2025-04-23 17:00 - n.a. - - n.a. - - n.a. -
12 hours prior 2025-04-23 11:00 - n.a. - - n.a. - - n.a. -
24 hours prior 2025-04-22 23:00 887.20 888.00 -0.80
48 hours prior 2025-04-21 23:00 887.23 888.00 -0.77
*

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