Lake Bonham: 83.7% full as of 2018-08-16

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 2018-08-16 83.7 563.22 9,239 9,227 11,027 971
Yesterday 2018-08-15 83.8 563.23 9,248 9,236 11,027 972
2 days ago 2018-08-14 83.8 563.24 9,258 9,246 11,027 972
1 week ago 2018-08-09 82.9 563.13 9,151 9,139 11,027 967
1 month ago 2018-07-16 88.9 563.81 9,819 9,807 11,027 998
3 months ago 2018-05-16 100.0 565.14 11,189 11,027 11,027 1,077
6 months ago 2018-02-16 88.6 563.77 9,779 9,767 11,027 996
1 year ago 2017-08-16 100.0 565.55 11,635 11,027 11,027 1,099
*

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 2018-08-16 16:00 563.21 565.0 -1.8 below flood pool
1 hour prior 2018-08-16 15:00 563.21 565.0 -1.8 below flood pool
2 hours prior 2018-08-16 14:00 563.21 565.0 -1.8 below flood pool
6 hours prior 2018-08-16 10:00 563.21 565.0 -1.8 below flood pool
12 hours prior 2018-08-16 04:00 563.22 565.0 -1.8 below flood pool
24 hours prior 2018-08-15 16:00 563.23 565.0 -1.8 below flood pool
48 hours prior 2018-08-14 16:00 563.25 565.0 -1.8 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1969-01-01
Vertical datum NGVD29
Gauge USGS:07332610
Dead pool elevation 538.0 ft above NGVD29
Service spillway crest elevation 565.0 ft above NGVD29
Emergency spillway crest elevation 571.0 ft above NGVD29
Top of dam elevation 584.0 ft above NGVD29
Conservation pool elevation 565.0 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1969-01-01 (source: usgs)
2004-03-01 (source: twdb) : GIS Data

Lake Location