Twin Buttes Reservoir is 8.3% full as of 2016-05-27

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, while 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.

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Most recent 2016-05-27 8.3 1,900.35 18,819 15,070 182,454 1,380
1 day prior 2016-05-26 8.1 1,900.14 18,528 14,779 182,454 1,365
2 days prior 2016-05-25 8.0 1,900.04 18,390 14,641 182,454 1,358
1 week prior 2016-05-20 7.8 1,899.68 17,911 14,162 182,454 1,336
1 month prior 2016-04-27 7.3 1,899.11 17,157 13,408 182,454 1,301
3 months prior 2016-02-27 5.4 1,896.09 13,532 9,783 182,454 1,116
6 months prior 2015-11-27 4.8 1,895.18 12,547 8,798 182,454 1,061
1 year prior 2015-05-27 5.9 1,896.89 14,438 10,689 182,454 1,165
*

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 2016-05-28 00:00 1,900.40 1,940.2 -39.8 below flood pool
1 hour prior 2016-05-27 23:00 1,900.40 1,940.2 -39.8 below flood pool
2 hours prior 2016-05-27 22:00 1,900.40 1,940.2 -39.8 below flood pool
6 hours prior 2016-05-27 18:00 1,900.39 1,940.2 -39.8 below flood pool
12 hours prior 2016-05-27 12:00 1,900.37 1,940.2 -39.8 below flood pool
24 hours prior 2016-05-27 00:00 1,900.20 1,940.2 -40.0 below flood pool
48 hours prior 2016-05-26 00:00 1,900.07 1,940.2 -40.1 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1963-01-01
Vertical datum NGVD29
Gauge USGS:08131200
Dead pool elevation 1885.0 ft above NGVD29
Conservation pool elevation 1940.2 ft above NGVD29
Emergency spillway crest elevation 1969.1 ft above NGVD29
Maximum design elevation 1985 ft above NGVD29
Top of dam elevation 1991 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1964-01-01 (source: usbr)