Lake Cypress Springs: 92.7% full as of 2026-08-28
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-08-28 | 92.7 | 376.47 | 61,894 | 61,894 | 66,756 | 3,124 |
| 1 day prior | 2026-08-27 | 92.8 | 376.49 | 61,957 | 61,957 | 66,756 | 3,126 |
| 2 days prior | 2026-08-26 | 93.0 | 376.52 | 62,051 | 62,051 | 66,756 | 3,128 |
| 1 week prior | 2026-08-21 | 93.4 | 376.62 | 62,364 | 62,364 | 66,756 | 3,134 |
| 1 month prior | 2026-07-28 | 96.4 | 377.25 | 64,352 | 64,352 | 66,756 | 3,178 |
| 3 months prior | 2026-05-28 | 98.0 | 377.59 | 65,436 | 65,436 | 66,756 | 3,202 |
| 6 months prior | 2026-02-28 | 97.4 | 377.46 | 65,021 | 65,021 | 66,756 | 3,193 |
| 1 year prior | 2025-08-28 | 96.9 | 377.35 | 64,670 | 64,670 | 66,756 | 3,185 |
*
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 | 2026-08-28 23:15 | 376.46 | 378.00 | -1.54 |
| 1 hour prior | 2026-08-28 22:15 | 376.46 | 378.00 | -1.54 |
| 2 hours prior | 2026-08-28 21:15 | 376.46 | 378.00 | -1.54 |
| 6 hours prior | 2026-08-28 17:15 | 376.46 | 378.00 | -1.54 |
| 12 hours prior | 2026-08-28 11:15 | 376.48 | 378.00 | -1.52 |
| 24 hours prior | 2026-08-27 23:15 | 376.47 | 378.00 | -1.53 |
| 48 hours prior | 2026-08-26 23:15 | 376.50 | 378.00 | -1.50 |
*
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
