Canyon Lake: 97.9% full as of 2026-10-04
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 | 2026-10-04 | 97.9 | 908.02 | 370,836 | 370,765 | 378,781 | 8,124 |
| 1 day prior | 2026-10-03 | 97.8 | 908.00 | 370,673 | 370,602 | 378,781 | 8,121 |
| 2 days prior | 2026-10-02 | 97.7 | 907.92 | 370,024 | 369,953 | 378,781 | 8,112 |
| 1 week prior | 2026-09-27 | 97.9 | 908.05 | 371,080 | 371,009 | 378,781 | 8,127 |
| 1 month prior | 2026-09-04 | 100.0 | 909.09 | 379,594 | 378,781 | 378,781 | - n.a. - |
| 3 months prior | 2026-07-04 | 61.2 | 888.21 | 232,029 | 231,958 | 378,781 | 5,968 |
| 6 months prior | 2026-04-04 | 58.9 | 886.72 | 223,248 | 223,177 | 378,781 | 5,819 |
| 1 year prior | 2025-10-04 | 66.2 | 891.30 | 250,950 | 250,879 | 378,781 | 6,280 |
*
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 | 2026-10-04 22:15 | 908.03 | 909.00 | -0.97 |
| 1 hour prior | 2026-10-04 21:15 | 908.03 | 909.00 | -0.97 |
| 2 hours prior | 2026-10-04 20:15 | 908.03 | 909.00 | -0.97 |
| 6 hours prior | 2026-10-04 16:15 | 908.03 | 909.00 | -0.97 |
| 12 hours prior | 2026-10-04 10:15 | 908.03 | 909.00 | -0.97 |
| 24 hours prior | 2026-10-03 22:15 | 908.01 | 909.00 | -0.99 |
| 48 hours prior | 2026-10-02 22:15 | 907.96 | 909.00 | -1.04 |
*
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
