O. C. Fisher Lake: 11.1% full as of 2026-09-19

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 2026-09-19 11.1 1,872.54 12,836 12,835 115,742 1,128
Yesterday 2026-09-18 11.1 1,872.56 12,858 12,857 115,742 1,131
2 days ago 2026-09-17 11.1 1,872.59 12,892 12,891 115,742 1,134
1 week ago 2026-09-12 11.3 1,872.77 13,094 13,093 115,742 1,154
1 month ago 2026-08-19 12.0 1,873.40 13,835 13,834 115,742 1,199
3 months ago 2026-06-19 13.6 1,874.94 15,749 15,748 115,742 1,305
6 months ago 2026-03-19 14.4 1,875.63 16,662 16,661 115,742 1,334
1 year ago 2025-09-19 16.4 1,877.30 19,018 19,017 115,742 1,500
*

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 2026-09-19 08:00 1,872.54 1,908.00 -35.46 below flood pool
1 hour prior 2026-09-19 07:00 1,872.54 1,908.00 -35.46 below flood pool
2 hours prior 2026-09-19 06:00 1,872.54 1,908.00 -35.46 below flood pool
6 hours prior 2026-09-19 02:00 1,872.54 1,908.00 -35.46 below flood pool
12 hours prior 2026-09-18 20:00 1,872.55 1,908.00 -35.45 below flood pool
24 hours prior 2026-09-18 08:00 1,872.56 1,908.00 -35.44 below flood pool
48 hours prior 2026-09-17 08:00 1,872.60 1,908.00 -35.40 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1951-01-01
Vertical datum NGVD29
Dead pool elevation 1,840.00 ft above NGVD29
Emergency spillway crest elevation 1,938.50 ft above NGVD29
Flood pool elevation 1,938.50 ft above NGVD29
Maximum design elevation 1,958.00 ft above NGVD29
Top of dam elevation 1,964.00 ft above NGVD29
Conservation pool elevation 1,908.00 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)
2003-08-01 (source: USACE)
Data Source USGS:08134500
USGS Monitoring Location USGS:08134500

Lake Location