Gibbons Creek Reservoir: 75.0% full as of 2021-09-23

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 2021-09-23 75.0 244.23 20,999 19,295 25,721 2,137
Yesterday 2021-09-22 75.3 244.26 21,063 19,359 25,721 2,139
2 days ago 2021-09-21 75.6 244.30 21,149 19,445 25,721 2,143
1 week ago 2021-09-16 75.6 244.30 21,149 19,445 25,721 2,143
1 month ago 2021-08-23 79.2 244.73 22,078 20,374 25,721 2,181
3 months ago 2021-06-23 90.1 245.98 24,889 23,185 25,721 2,340
6 months ago 2021-03-23 82.1 245.07 22,825 21,121 25,721 2,212
1 year ago 2020-09-23 83.4 245.22 23,158 21,454 25,721 2,228
*

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 2021-09-23 19:00 244.23 247.00 -2.77 below flood pool
1 hour prior 2021-09-23 18:00 244.23 247.00 -2.77 below flood pool
2 hours prior 2021-09-23 17:00 244.23 247.00 -2.77 below flood pool
6 hours prior 2021-09-23 13:00 244.23 247.00 -2.77 below flood pool
12 hours prior 2021-09-23 07:00 244.23 247.00 -2.77 below flood pool
24 hours prior 2021-09-22 19:00 244.27 247.00 -2.73 below flood pool
48 hours prior 2021-09-21 19:00 244.31 247.00 -2.69 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1981-01-01
Vertical datum NGVD29
Gauge USGS:08111058
Dead pool elevation 229.39 ft above NGVD29
Conservation pool elevation 247.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2008-03-01 (source: twdb) : GIS Data

Lake Location