Choke Canyon Reservoir: 25.0% full as of 2023-12-09

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)
Today 2023-12-09 25.0 192.93 165,748 165,747 662,820 11,116
Yesterday 2023-12-08 25.0 192.94 165,859 165,858 662,820 11,121
2 days ago 2023-12-07 25.0 192.93 165,748 165,747 662,820 11,116
1 week ago 2023-12-02 25.1 192.97 166,193 166,192 662,820 11,135
1 month ago 2023-11-09 25.5 193.22 168,992 168,991 662,820 11,254
3 months ago 2023-09-09 27.6 194.41 182,721 182,720 662,820 11,803
6 months ago 2023-06-09 32.3 196.95 214,239 214,238 662,820 13,012
1 year ago 2022-12-09 32.3 196.93 213,979 213,978 662,820 13,002
*

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 2023-12-09 11:15 192.93 220.50 -27.57
1 hour prior 2023-12-09 10:15 192.89 220.50 -27.61
2 hours prior 2023-12-09 09:15 192.90 220.50 -27.60
6 hours prior 2023-12-09 05:15 192.93 220.50 -27.57
12 hours prior 2023-12-08 23:15 192.93 220.50 -27.57
24 hours prior 2023-12-08 11:15 192.93 220.50 -27.57
48 hours prior 2023-12-07 11:15 192.94 220.50 -27.56
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1982-01-01
Vertical datum NGVD29
Dead pool elevation 136.40 ft above NGVD29
Service spillway crest elevation 199.50 ft above NGVD29
Top of flood gate elevation 223.20 ft above NGVD29
Emergency spillway crest elevation 223.20 ft above NGVD29
Maximum design elevation 232.18 ft above NGVD29
Top of dam elevation 241.14 ft above NGVD29
Conservation pool elevation 220.50 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1983-01-01 (source: USBR)
1993-03-01 (source: TWDB) : GIS Data
2012-06-01 (source: TWDB) : GIS Data
Data Source USGS:08206900

Lake Location