Lake Cypress Springs: 89.4% full as of 2026-10-09
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 | 2026-10-09 | 89.4 | 375.76 | 59,693 | 59,693 | 66,756 | 3,078 |
| Yesterday | 2026-10-08 | 89.5 | 375.77 | 59,723 | 59,723 | 66,756 | 3,078 |
| 2 days ago | 2026-10-07 | 89.5 | 375.78 | 59,754 | 59,754 | 66,756 | 3,079 |
| 1 week ago | 2026-10-02 | 89.6 | 375.79 | 59,785 | 59,785 | 66,756 | 3,080 |
| 1 month ago | 2026-09-09 | 91.4 | 376.19 | 61,022 | 61,022 | 66,756 | 3,106 |
| 3 months ago | 2026-07-09 | 97.6 | 377.50 | 65,148 | 65,148 | 66,756 | 3,195 |
| 6 months ago | 2026-04-09 | 97.7 | 377.53 | 65,244 | 65,244 | 66,756 | 3,198 |
| 1 year ago | 2025-10-09 | 96.5 | 377.28 | 64,447 | 64,447 | 66,756 | 3,180 |
*
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 | 2026-10-09 04:15 | 375.76 | 378.00 | -2.24 |
| 1 hour prior | 2026-10-09 03:15 | 375.76 | 378.00 | -2.24 |
| 2 hours prior | 2026-10-09 02:15 | 375.76 | 378.00 | -2.24 |
| 6 hours prior | 2026-10-08 22:15 | 375.77 | 378.00 | -2.23 |
| 12 hours prior | 2026-10-08 16:15 | 375.75 | 378.00 | -2.25 |
| 24 hours prior | 2026-10-08 04:15 | 375.76 | 378.00 | -2.24 |
| 48 hours prior | 2026-10-07 04:15 | 375.79 | 378.00 | -2.21 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1971-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 317.75 ft above NGVD29 |
| Service spillway crest elevation | 378.00 ft above NGVD29 |
| Emergency spillway crest elevation | 385.00 ft above NGVD29 |
| Top of dam elevation | 395.00 ft above NGVD29 |
| Conservation pool elevation | 378.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2007-07-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:07344484 |
| USGS Monitoring Location | USGS:07344484 |
Lake Location
