O. C. Fisher Lake Water Level Today - 1,872.89 ft, 11.4% Full

Colorado River (Texas) · Texas - updated daily from official gauges

Western Reservoir Conditions·Daily·No. 47·Tuesday, September 8, 2026·Latest reading September 8, 2026

• O. C. Fisher Lake is 11.4% full - critically low on this site's capacity scale - as of September 8, 2026. Surface elevation 1,872.89 feet, storage 13,228 acre-feet (capacity basis 115,742 acre-feet), per Texas Water Development Board data.
• That elevation is 24.02 feet above its record low of 1,848.87 ft (January 27, 2014), in a daily record going back to October 1, 2000 (TWDB's period of record for this reservoir).
• Storage is 179% of the September 8 average across 26 years of record.
• O. C. Fisher Lake is falling: elevation changed -0.18 ft over the past week, -0.83 ft over the past month, and -4.67 ft over the past year, per Texas Water Development Board data.

O. C. Fisher Lake has fallen 4.67 feet in twelve months, and now sits 24.02 feet above its record low.

O. C. Fisher Lake vs its record low

In the daily record used by this site (going back to October 1, 2000 (TWDB's period of record for this reservoir)), O. C. Fisher Lake's lowest surface elevation was 1,848.87 feet on January 27, 2014, when storage was 114 acre-feet. As of September 8, 2026, O. C. Fisher Lake is at 1,872.89 feet - 24.02 feet above that record. The record high in the same series was 1,879.41 ft on July 6, 2025.

O. C. Fisher Lake storage in context

O. C. Fisher Lake water level, past 12 months

11.4% full at the latest reading - across the past 12 months it ranged from 11.4% (September 8, 2026) to 16.8% (September 8, 2025). Percent full is storage against the 115,742-acre-foot capacity basis, not a share of the elevation plotted above.

O. C. Fisher Lake elevation, full record

11.4% full at the latest reading - across the storage record since February 2, 1952 it ranged from 0.0% (February 2, 1952) to 103.2% (October 24, 1957). Percent full is storage against the 115,742-acre-foot capacity basis, not a share of the elevation plotted above. Every percentage here is measured against today's capacity basis; a reservoir's surveyed capacity changes as sediment accumulates behind the dam, so early-record percentages are indicative rather than exact.

Last 14 daily readings

Frequently asked questions

What is the water level of O. C. Fisher Lake today?

As of September 8, 2026, O. C. Fisher Lake's surface elevation is 1,872.89 feet, with 13,228 acre-feet in storage - 11.4% of the 115,742 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is O. C. Fisher Lake?

O. C. Fisher Lake is 11.4% full as of September 8, 2026. Its storage is 179% of the September 8 average across its record since 2000. Source: Water Data for Texas (TWDB) daily data.

When was O. C. Fisher Lake last full?

O. C. Fisher Lake was last at or above 95% of its 115,742 acre-foot capacity basis on December 14, 1957. As of September 8, 2026 it is 11.4% full. Source: Water Data for Texas (TWDB) daily data.

Is O. C. Fisher Lake rising or falling?

O. C. Fisher Lake is falling: its elevation changed -0.18 feet over the week ending September 8, 2026, -0.83 ft over the past month, and -4.67 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

What was O. C. Fisher Lake's lowest water level on record?

O. C. Fisher Lake's lowest surface elevation in the daily record since October 1, 2000 was 1,848.87 feet on January 27, 2014, per the daily record used by this site. As of September 8, 2026 the reservoir is 24.02 feet above that record low.

About this gauge

O. C. Fisher Lake is a Texas water-supply reservoir in the Colorado River (Texas) basin. Water Data for Texas publishes a conservation pool elevation of 1,908.0 ft and a conservation capacity of 115,742 acre-feet, with daily water level and storage recorded since 1952-02-02.

Operator

Texas Water Development Board (Water Data for Texas)

Station

o-c-fisher

Measurements

Daily water level and conservation storage

River

Colorado River (Texas)

State

Texas

Full pool reference

1,908.0 ft

Capacity basis

115,742 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

October 1, 2000 (TWDB's period of record for this reservoir)

Status

Provisional - subject to revision by the reporting agency

Update cadence

Daily

TWDB reports conservation storage against a conservation capacity that is restated as new volumetric surveys are completed, so a percent-full figure here can change without the water level changing. TWDB's methodology page is linked in the notes below.

Download the daily CSV (date, elevation ft, storage AF) or see all data downloads.

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