Notes

2013-06-19: The vertical datums of gauge, conservation pool and dead pool elevations for this lake have been adjusted to NGVD29-0.05ft.

Inks Lake: 95.3% full as of 2023-02-06

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)
Today 2023-02-06 95.3 887.19 13,367 13,084 13,729 790
Yesterday 2023-02-05 95.2 887.17 13,351 13,068 13,729 789
2 days ago 2023-02-04 95.1 887.15 13,335 13,052 13,729 789
1 week ago 2023-01-30 95.4 887.20 13,375 13,092 13,729 790
1 month ago 2023-01-06 95.0 887.14 13,328 13,045 13,729 784
3 months ago 2022-11-06 94.8 887.10 13,296 13,013 13,729 781
6 months ago 2022-08-06 94.7 887.08 13,281 12,998 13,729 780
1 year ago 2022-02-06 95.4 887.20 13,375 13,092 13,729 790
*

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 2023-02-06 17:00 887.21 888.00 -0.79
1 hour prior 2023-02-06 16:00 887.21 888.00 -0.79
2 hours prior 2023-02-06 15:00 887.23 888.00 -0.77
6 hours prior 2023-02-06 11:00 - n.a. - - n.a. - - n.a. -
12 hours prior 2023-02-06 05:00 - n.a. - - n.a. - - n.a. -
24 hours prior 2023-02-05 17:00 - n.a. - - n.a. - - n.a. -
48 hours prior 2023-02-04 17:00 887.15 888.00 -0.85
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1938-01-01
Gauge LCRA:1999
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

Lake Location