Lake Cypress Springs: 91.6% full as of 2026-09-07
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 | 2026-09-07 | 91.6 | 376.24 | 61,177 | 61,177 | 66,756 | 3,109 |
| Yesterday | 2026-09-06 | 91.7 | 376.25 | 61,209 | 61,209 | 66,756 | 3,110 |
| 2 days ago | 2026-09-05 | 91.8 | 376.27 | 61,271 | 61,271 | 66,756 | 3,111 |
| 1 week ago | 2026-08-31 | 92.4 | 376.40 | 61,676 | 61,676 | 66,756 | 3,120 |
| 1 month ago | 2026-08-07 | 95.1 | 376.98 | 63,496 | 63,496 | 66,756 | 3,159 |
| 3 months ago | 2026-06-07 | 98.1 | 377.60 | 65,468 | 65,468 | 66,756 | 3,203 |
| 6 months ago | 2026-03-07 | 97.9 | 377.57 | 65,372 | 65,372 | 66,756 | 3,201 |
| 1 year ago | 2025-09-07 | 98.6 | 377.72 | 65,853 | 65,853 | 66,756 | 3,212 |
*
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 | 2026-09-07 04:15 | 376.24 | 378.00 | -1.76 |
| 1 hour prior | 2026-09-07 03:15 | 376.24 | 378.00 | -1.76 |
| 2 hours prior | 2026-09-07 02:15 | 376.24 | 378.00 | -1.76 |
| 6 hours prior | 2026-09-06 22:15 | 376.25 | 378.00 | -1.75 |
| 12 hours prior | 2026-09-06 16:15 | 376.25 | 378.00 | -1.75 |
| 24 hours prior | 2026-09-06 04:15 | 376.26 | 378.00 | -1.74 |
| 48 hours prior | 2026-09-05 04:15 | 376.28 | 378.00 | -1.72 |
*
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
