Inks Lake: 95.3% full as of 2026-09-13
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 | 2026-09-13 | 95.3 | 887.19 | 13,367 | 13,084 | 13,729 | 790 |
| Yesterday | 2026-09-12 | 95.2 | 887.18 | 13,359 | 13,076 | 13,729 | 790 |
| 2 days ago | 2026-09-11 | 95.1 | 887.16 | 13,343 | 13,060 | 13,729 | 789 |
| 1 week ago | 2026-09-06 | 94.9 | 887.12 | 13,312 | 13,029 | 13,729 | 783 |
| 1 month ago | 2026-08-13 | 94.5 | 887.05 | 13,257 | 12,974 | 13,729 | 778 |
| 3 months ago | 2026-06-13 | 94.5 | 887.05 | 13,257 | 12,974 | 13,729 | 778 |
| 6 months ago | 2026-03-13 | 95.5 | 887.23 | 13,399 | 13,116 | 13,729 | 791 |
| 1 year ago | 2025-09-13 | 94.3 | 887.02 | 13,234 | 12,951 | 13,729 | 777 |
*
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 | 2026-09-13 19:30 | 887.31 | 888.00 | -0.69 |
| 1 hour prior | 2026-09-13 18:30 | 887.26 | 888.00 | -0.74 |
| 2 hours prior | 2026-09-13 17:30 | 887.17 | 888.00 | -0.83 |
| 6 hours prior | 2026-09-13 13:30 | 887.19 | 888.00 | -0.81 |
| 12 hours prior | 2026-09-13 07:30 | 887.19 | 888.00 | -0.81 |
| 24 hours prior | 2026-09-12 19:30 | 887.29 | 888.00 | -0.71 |
| 48 hours prior | 2026-09-11 19:30 | 887.26 | 888.00 | -0.74 |
*
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
