Lake Bonham is 80.9% full as of 2016-09-26

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)
Today 2016-09-26 80.9 562.90 8,930 8,918 11,027 956
Yesterday 2016-09-25 80.5 562.86 8,892 8,880 11,027 954
2 days ago 2016-09-24 80.6 562.87 8,901 8,889 11,027 955
1 week ago 2016-09-19 81.7 563.00 9,026 9,014 11,027 961
1 month ago 2016-08-26 84.6 563.32 9,336 9,324 11,027 976
3 months ago 2016-06-26 96.9 564.67 10,694 10,682 11,027 1,036
6 months ago 2016-03-26 100.0 565.09 11,135 11,027 11,027 1,075
1 year ago 2015-09-26 79.5 562.74 8,778 8,766 11,027 948
*

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 2016-09-26 18:00 562.93 565.0 -2.1 below flood pool
1 hour prior 2016-09-26 17:00 562.93 565.0 -2.1 below flood pool
2 hours prior 2016-09-26 16:00 562.94 565.0 -2.1 below flood pool
6 hours prior 2016-09-26 12:00 562.91 565.0 -2.1 below flood pool
12 hours prior 2016-09-26 06:00 562.89 565.0 -2.1 below flood pool
24 hours prior 2016-09-25 18:00 562.85 565.0 -2.1 below flood pool
48 hours prior 2016-09-24 18:00 562.87 565.0 -2.1 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 ft above NGVD29
Conservation pool elevation 565.0 ft above NGVD29
Emergency spillway crest elevation 571 ft above NGVD29
Top of dam elevation 584 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