Inks Lake: 94.8% full as of 2026-08-11
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 | 2026-08-11 | 94.8 | 887.10 | 13,296 | 13,013 | 13,729 | 781 |
| Yesterday | 2026-08-10 | 95.0 | 887.14 | 13,328 | 13,045 | 13,729 | 784 |
| 2 days ago | 2026-08-09 | 95.2 | 887.17 | 13,351 | 13,068 | 13,729 | 789 |
| 1 week ago | 2026-08-04 | 94.5 | 887.05 | 13,257 | 12,974 | 13,729 | 778 |
| 1 month ago | 2026-07-11 | 95.0 | 887.13 | 13,320 | 13,037 | 13,729 | 784 |
| 3 months ago | 2026-05-11 | 97.2 | 887.51 | 13,621 | 13,338 | 13,729 | 795 |
| 6 months ago | 2026-02-11 | 95.6 | 887.25 | 13,414 | 13,131 | 13,729 | 791 |
| 1 year ago | 2025-08-11 | 95.5 | 887.22 | 13,391 | 13,108 | 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 | 2026-08-11 19:00 | 887.08 | 888.00 | -0.92 |
| 1 hour prior | 2026-08-11 18:00 | 887.09 | 888.00 | -0.91 |
| 2 hours prior | 2026-08-11 17:00 | 887.08 | 888.00 | -0.92 |
| 6 hours prior | 2026-08-11 13:00 | 887.10 | 888.00 | -0.90 |
| 12 hours prior | 2026-08-11 07:00 | 887.11 | 888.00 | -0.89 |
| 24 hours prior | 2026-08-10 19:00 | 887.13 | 888.00 | -0.87 |
| 48 hours prior | 2026-08-09 19:00 | 887.16 | 888.00 | -0.84 |
*
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
