Gibbons Creek Reservoir: 86.2% full as of 2025-01-20

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 2025-01-20 86.2 245.54 23,877 22,173 25,721 2,266
Yesterday 2025-01-19 86.3 245.55 23,900 22,196 25,721 2,268
2 days ago 2025-01-18 86.6 245.58 23,968 22,264 25,721 2,272
1 week ago 2025-01-13 86.3 245.55 23,900 22,196 25,721 2,268
1 month ago 2024-12-20 80.0 244.82 22,275 20,571 25,721 2,189
3 months ago 2024-10-20 80.9 244.93 22,516 20,812 25,721 2,199
6 months ago 2024-07-20 96.7 246.67 26,589 24,885 25,721 2,517
1 year ago 2024-01-20 74.0 244.11 20,743 19,039 25,721 2,126
*

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 2025-01-20 16:00 245.55 247.00 -1.45
1 hour prior 2025-01-20 15:00 245.54 247.00 -1.46
2 hours prior 2025-01-20 14:00 245.55 247.00 -1.45
6 hours prior 2025-01-20 10:00 245.52 247.00 -1.48
12 hours prior 2025-01-20 04:00 245.55 247.00 -1.45
24 hours prior 2025-01-19 16:00 245.54 247.00 -1.46
48 hours prior 2025-01-18 16:00 245.60 247.00 -1.40
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1981-01-01
Vertical datum NGVD29
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
Data Source USGS:08111058

Lake Location