Twin Buttes Reservoir: 17.1% full as of 2023-10-04

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 2023-10-04 17.1 1,909.60 34,996 31,247 182,454 2,226
Yesterday 2023-10-03 17.2 1,909.62 35,040 31,291 182,454 2,228
2 days ago 2023-10-02 17.2 1,909.65 35,106 31,357 182,454 2,231
1 week ago 2023-09-27 17.4 1,909.83 35,504 31,755 182,454 2,251
1 month ago 2023-09-04 18.2 1,910.45 36,927 33,178 182,454 2,323
3 months ago 2023-07-04 25.2 1,915.34 49,658 45,909 182,454 2,902
6 months ago 2023-04-04 28.0 1,917.08 54,878 51,129 182,454 3,142
1 year ago 2022-10-04 30.3 1,918.39 59,090 55,341 182,454 3,323
*

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 2023-10-04 04:00 1,909.60 1,940.20 -30.60
1 hour prior 2023-10-04 03:00 1,909.59 1,940.20 -30.61
2 hours prior 2023-10-04 02:00 1,909.60 1,940.20 -30.60
6 hours prior 2023-10-03 22:00 1,909.60 1,940.20 -30.60
12 hours prior 2023-10-03 16:00 1,909.61 1,940.20 -30.59
24 hours prior 2023-10-03 04:00 1,909.63 1,940.20 -30.57
48 hours prior 2023-10-02 04:00 1,909.66 1,940.20 -30.54
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1963-01-01
Gauge USGS:08131200
Vertical datum NGVD29
Dead pool elevation 1,885.00 ft above NGVD29
Emergency spillway crest elevation 1,969.10 ft above NGVD29
Maximum design elevation 1,985.00 ft above NGVD29
Top of dam elevation 1,991.00 ft above NGVD29
Conservation pool elevation 1,940.20 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1964-01-01 (source: USBR)

Lake Location