Twin Buttes Reservoir: 29.0% full as of 2022-11-28

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 2022-11-28 29.0 1,917.62 56,591 52,842 182,454 3,217
Yesterday 2022-11-27 28.9 1,917.61 56,560 52,811 182,454 3,215
2 days ago 2022-11-26 28.9 1,917.61 56,560 52,811 182,454 3,215
1 week ago 2022-11-21 28.6 1,917.44 56,020 52,271 182,454 3,192
1 month ago 2022-10-28 29.4 1,917.87 57,384 53,635 182,454 3,251
3 months ago 2022-08-28 32.0 1,919.30 62,151 58,402 182,454 3,448
6 months ago 2022-05-28 45.6 1,925.48 87,010 83,261 182,454 4,699
1 year ago 2021-11-28 52.1 1,927.86 98,863 95,114 182,454 5,316
*

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 2022-11-28 01:00 1,917.62 1,940.20 -22.58
1 hour prior 2022-11-28 00:00 1,917.62 1,940.20 -22.58
2 hours prior 2022-11-27 23:00 1,917.62 1,940.20 -22.58
6 hours prior 2022-11-27 19:00 1,917.61 1,940.20 -22.59
12 hours prior 2022-11-27 13:00 1,917.61 1,940.20 -22.59
24 hours prior 2022-11-27 01:00 1,917.62 1,940.20 -22.58
48 hours prior 2022-11-26 01:00 1,917.59 1,940.20 -22.61
*

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