Canyon Lake: 97.6% full as of 2026-10-02
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 | 2026-10-02 | 97.6 | 907.91 | 369,943 | 369,872 | 378,781 | 8,111 |
| Yesterday | 2026-10-01 | 97.6 | 907.88 | 369,700 | 369,629 | 378,781 | 8,108 |
| 2 days ago | 2026-09-30 | 97.6 | 907.90 | 369,862 | 369,791 | 378,781 | 8,110 |
| 1 week ago | 2026-09-25 | 98.2 | 908.15 | 371,893 | 371,822 | 378,781 | 8,138 |
| 1 month ago | 2026-09-02 | 100.0 | 909.19 | 380,419 | 378,781 | 378,781 | - n.a. - |
| 3 months ago | 2026-07-02 | 61.3 | 888.27 | 232,387 | 232,316 | 378,781 | 5,974 |
| 6 months ago | 2026-04-02 | 58.9 | 886.73 | 223,306 | 223,235 | 378,781 | 5,820 |
| 1 year ago | 2025-10-02 | 66.3 | 891.36 | 251,327 | 251,256 | 378,781 | 6,286 |
*
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 | 2026-10-02 16:15 | 907.91 | 909.00 | -1.09 |
| 1 hour prior | 2026-10-02 15:15 | 907.91 | 909.00 | -1.09 |
| 2 hours prior | 2026-10-02 14:15 | 907.91 | 909.00 | -1.09 |
| 6 hours prior | 2026-10-02 10:15 | 907.91 | 909.00 | -1.09 |
| 12 hours prior | 2026-10-02 04:15 | 907.91 | 909.00 | -1.09 |
| 24 hours prior | 2026-10-01 16:15 | 907.89 | 909.00 | -1.11 |
| 48 hours prior | 2026-09-30 16:15 | 907.90 | 909.00 | -1.10 |
*
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
