Inks Lake: 94.7% full as of 2023-12-09

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)
Today 2023-12-09 94.7 887.09 13,288 13,005 13,729 781
Yesterday 2023-12-08 94.7 887.09 13,288 13,005 13,729 781
2 days ago 2023-12-07 94.7 887.08 13,281 12,998 13,729 780
1 week ago 2023-12-02 94.3 887.01 13,226 12,943 13,729 776
1 month ago 2023-11-09 94.4 887.04 13,249 12,966 13,729 778
3 months ago 2023-09-09 95.4 887.20 13,375 13,092 13,729 790
6 months ago 2023-06-09 94.6 887.06 13,265 12,982 13,729 779
1 year ago 2022-12-09 94.7 887.09 13,288 13,005 13,729 781
*

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 2023-12-09 13:00 887.09 888.00 -0.91
1 hour prior 2023-12-09 12:00 887.09 888.00 -0.91
2 hours prior 2023-12-09 11:00 887.09 888.00 -0.91
6 hours prior 2023-12-09 07:00 - n.a. - - n.a. - - n.a. -
12 hours prior 2023-12-09 01:00 - n.a. - - n.a. - - n.a. -
24 hours prior 2023-12-08 13:00 - n.a. - - n.a. - - n.a. -
48 hours prior 2023-12-07 13:00 - n.a. - - n.a. - - n.a. -
*

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