Lake Amon G Carter Water Level Today - 916.68 ft, 76.8% Full

Trinity River · Texas - updated daily from official gauges

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

• Lake Amon G Carter is 76.8% full - high on this site's capacity scale - as of September 8, 2026. Surface elevation 916.68 feet, storage 14,788 acre-feet (capacity basis 19,266 acre-feet), per Texas Water Development Board data.
• That elevation is its lowest September reading since 2014, and 6.49 feet above its record low of 910.19 ft (October 13, 2000), in a daily record going back to March 5, 1999 (TWDB's period of record for this reservoir).
• Storage is 93% of the September 8 average across 28 years of record.
• Lake Amon G Carter is falling: elevation changed -0.16 ft over the past week, -0.84 ft over the past month, and -2.95 ft over the past year, per Texas Water Development Board data.

Lake Amon G Carter has fallen 2.95 feet in twelve months, and now sits 6.49 feet above its record low.

Lake Amon G Carter vs its record low

In the daily record used by this site (going back to March 5, 1999 (TWDB's period of record for this reservoir)), Lake Amon G Carter's lowest surface elevation was 910.19 feet on October 13, 2000, when storage was 7,879 acre-feet. As of September 8, 2026, Lake Amon G Carter is at 916.68 feet - 6.49 feet above that record. The record high in the same series was 928.56 ft on May 21, 2015.

Lake Amon G Carter storage in context

Lake Amon G Carter water level, past 12 months

76.8% full at the latest reading - across the past 12 months it ranged from 76.8% (September 8, 2026) to 97.2% (September 8, 2025). Percent full is storage against the 19,266-acre-foot capacity basis, not a share of the elevation plotted above.

Lake Amon G Carter elevation, full record

76.8% full at the latest reading - across the storage record since March 5, 1999 it ranged from 40.9% (October 13, 2000) to 100.0% (August 9, 2025). Percent full is storage against the 19,266-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 Lake Amon G Carter today?

As of September 8, 2026, Lake Amon G Carter's surface elevation is 916.68 feet, with 14,788 acre-feet in storage - 76.8% of the 19,266 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is Lake Amon G Carter?

Lake Amon G Carter is 76.8% full as of September 8, 2026. Its storage is 93% of the September 8 average across its record since 1999. Source: Water Data for Texas (TWDB) daily data.

When was Lake Amon G Carter last full?

Lake Amon G Carter was last at or above 95% of its 19,266 acre-foot capacity basis on September 28, 2025. As of September 8, 2026 it is 76.8% full. Source: Water Data for Texas (TWDB) daily data.

Is Lake Amon G Carter rising or falling?

Lake Amon G Carter is falling: its elevation changed -0.16 feet over the week ending September 8, 2026, -0.84 ft over the past month, and -2.95 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

What was Lake Amon G Carter's lowest water level on record?

Lake Amon G Carter's lowest surface elevation in the daily record since March 5, 1999 was 910.19 feet on October 13, 2000, per the daily record used by this site. As of September 8, 2026 the reservoir is 6.49 feet above that record low.

About this gauge

Lake Amon G Carter is a Texas water-supply reservoir in the Trinity River basin. Water Data for Texas publishes a conservation pool elevation of 920.0 ft and a conservation capacity of 19,266 acre-feet, with daily water level and storage recorded since 1999-03-05.

Operator

Texas Water Development Board (Water Data for Texas)

Station

amon-g-carter

Measurements

Daily water level and conservation storage

River

Trinity River

State

Texas

Full pool reference

920.0 ft

Capacity basis

19,266 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

March 5, 1999 (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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