recent changes

2015-05-04: The rating curve for this reservoir has been updated and replaced with data obtained from the U.S. Army Corps of Engineers. This updates historical data for the period September 1962 - April 2015.

O. C. Fisher Lake is 13.8% full as of 2016-08-25

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 2016-08-25 13.8 1,875.12 15,984 15,983 115,742 1,315
Yesterday 2016-08-24 13.8 1,875.11 15,971 15,970 115,742 1,314
2 days ago 2016-08-23 13.9 1,875.17 16,051 16,050 115,742 1,316
1 week ago 2016-08-18 14.0 1,875.28 16,197 16,196 115,742 1,321
1 month ago 2016-07-25 14.6 1,875.79 16,875 16,874 115,742 1,340
3 months ago 2016-05-25 15.3 1,876.40 17,717 17,716 115,742 1,396
6 months ago 2016-02-25 16.1 1,877.02 18,591 18,590 115,742 1,469
1 year ago 2015-08-25 11.4 1,872.88 13,218 13,217 115,742 1,167
*

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 2016-08-25 13:00 1,875.17 1,908.0 -32.8 below flood pool
1 hour prior 2016-08-25 12:00 1,875.15 1,908.0 -32.8 below flood pool
2 hours prior 2016-08-25 11:00 1,875.16 1,908.0 -32.8 below flood pool
6 hours prior 2016-08-25 07:00 1,875.13 1,908.0 -32.9 below flood pool
12 hours prior 2016-08-25 01:00 1,875.13 1,908.0 -32.9 below flood pool
24 hours prior 2016-08-24 13:00 1,875.12 1,908.0 -32.9 below flood pool
48 hours prior 2016-08-23 13:00 1,875.19 1,908.0 -32.8 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1951-01-01
Vertical datum NGVD29
Gauge USGS:08134500
Dead pool elevation 1840.0 ft above NGVD29
Conservation pool elevation 1908.0 ft above NGVD29
Emergency spillway crest elevation 1938.5 ft above NGVD29
Flood pool elevation 1938.5 ft above NGVD29
Maximum design elevation 1958 ft above NGVD29
Top of dam elevation 1964 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1959-02-01 (source: twdb)
1962-09-01 (source: usace)