Canyon Lake: 49.3% full as of 2025-01-22

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2025-01-22 49.3 880.12 186,936 186,865 378,781 5,193
1 day prior 2025-01-21 49.4 880.15 187,092 187,021 378,781 5,196
2 days prior 2025-01-20 49.4 880.19 187,300 187,229 378,781 5,200
1 week prior 2025-01-15 49.6 880.33 188,029 187,958 378,781 5,213
1 month prior 2024-12-22 50.5 881.00 191,542 191,471 378,781 5,275
3 months prior 2024-10-22 53.1 882.79 201,132 201,061 378,781 5,440
6 months prior 2024-07-22 55.0 884.12 208,451 208,380 378,781 5,566
1 year prior 2024-01-22 59.8 887.32 226,757 226,686 378,781 5,879
*

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 2025-01-23 03:15 880.10 909.00 -28.90 below flood pool
1 hour prior 2025-01-23 02:15 880.10 909.00 -28.90 below flood pool
2 hours prior 2025-01-23 01:15 880.10 909.00 -28.90 below flood pool
6 hours prior 2025-01-22 21:15 880.10 909.00 -28.90 below flood pool
12 hours prior 2025-01-22 15:15 880.12 909.00 -28.88 below flood pool
24 hours prior 2025-01-22 03:15 880.14 909.00 -28.86 below flood pool
48 hours prior 2025-01-21 03:15 880.16 909.00 -28.84 below flood pool
*

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

Lake Location