Canyon Lake: 96.4% full as of 2026-11-11
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 | 2026-11-11 | 96.4 | 907.34 | 365,338 | 365,267 | 378,781 | 8,046 |
| Yesterday | 2026-11-10 | 96.3 | 907.29 | 364,936 | 364,865 | 378,781 | 8,040 |
| 2 days ago | 2026-11-09 | 96.3 | 907.27 | 364,775 | 364,704 | 378,781 | 8,038 |
| 1 week ago | 2026-11-04 | 96.3 | 907.27 | 364,775 | 364,704 | 378,781 | 8,038 |
| 1 month ago | 2026-10-11 | 97.5 | 907.84 | 369,376 | 369,305 | 378,781 | 8,103 |
| 3 months ago | 2026-08-11 | 100.0 | 910.03 | 387,397 | 378,781 | 378,781 | - n.a. - |
| 6 months ago | 2026-05-11 | 58.9 | 886.72 | 223,248 | 223,177 | 378,781 | 5,819 |
| 1 year ago | 2025-11-11 | 63.8 | 889.81 | 241,705 | 241,634 | 378,781 | 6,129 |
*
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 | 2026-11-11 19:15 | 907.37 | 909.00 | -1.63 |
| 1 hour prior | 2026-11-11 18:15 | 907.37 | 909.00 | -1.63 |
| 2 hours prior | 2026-11-11 17:15 | 907.37 | 909.00 | -1.63 |
| 6 hours prior | 2026-11-11 13:15 | 907.35 | 909.00 | -1.65 |
| 12 hours prior | 2026-11-11 07:15 | 907.33 | 909.00 | -1.67 |
| 24 hours prior | 2026-11-10 19:15 | 907.30 | 909.00 | -1.70 |
| 48 hours prior | 2026-11-09 19:15 | 907.28 | 909.00 | -1.72 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1964-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 775.00 ft above NGVD29 |
| Service spillway crest elevation | 943.00 ft above NGVD29 |
| Emergency spillway crest elevation | 943.00 ft above NGVD29 |
| Flood pool elevation | 943.00 ft above NGVD29 |
| Maximum design elevation | 969.10 ft above NGVD29 |
| Top of dam elevation | 974.00 ft above NGVD29 |
| Conservation pool elevation | 909.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2000-11-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08167700 |
| USGS Monitoring Location | USGS:08167700 |
Lake Location
