Belton Lake Water Level Today - 593.03 ft, 97.2% Full

Brazos River · Texas - updated daily from official gauges

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

• Belton Lake is 97.2% full - effectively full on this site's capacity scale - as of September 8, 2026. Surface elevation 593.03 feet, storage 420,683 acre-feet (capacity basis 432,631 acre-feet), per Texas Water Development Board data.
• That elevation is 18.39 feet above its record low of 574.64 ft (October 22, 2023), in a daily record going back to March 9, 1988 (TWDB's period of record for this reservoir).
• Storage is 103% of the September 8 average across 35 years of record.
• Belton Lake is falling: elevation changed -0.27 ft over the past week, -1.34 ft over the past month, and -1.77 ft over the past year, per Texas Water Development Board data.

Belton Lake is holding near the top of its operating range at 97.2% of capacity, -1.77 ft over the past twelve months.

Belton Lake operating range

Belton Lake is operated within a narrow band rather than drawn down and refilled over years. As of September 8, 2026 it sits 0.97 feet below its 594.0 ft full-pool reference. Over the past two years the daily record ranges from 590.67 ft (April 22, 2025) to 602.12 ft (July 16, 2025) - a band of 11.45 feet. The highest reading in the full record is 629.62 ft on July 17, 2007.

Storage above the full-pool reference is flood control space, not supply. A reservoir reading at or near 100% of its conservation capacity is being operated normally - it is not a surplus, and the operator may release water to hold that space.

Belton Lake storage in context

Belton Lake water level, past 12 months

97.2% full at the latest reading - across the past 12 months it ranged from 96.5% (April 1, 2026) to 100.0% (August 16, 2026). Percent full is storage against the 432,631-acre-foot capacity basis, not a share of the elevation plotted above.

Belton Lake elevation, full record

97.2% full at the latest reading - across the storage record since March 2, 1954 it ranged from 0.0% (March 2, 1954) to 103.2% (April 30, 2003). Percent full is storage against the 432,631-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 Belton Lake today?

As of September 8, 2026, Belton Lake's surface elevation is 593.03 feet, with 420,683 acre-feet in storage - 97.2% of the 432,631 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is Belton Lake?

Belton Lake is 97.2% full as of September 8, 2026. Its storage is 103% of the September 8 average across its record since 1988. Source: Water Data for Texas (TWDB) daily data.

When was Belton Lake last full?

Belton Lake was last at or above 95% of its 432,631 acre-foot capacity basis on September 8, 2026. As of September 8, 2026 it is 97.2% full. Source: Water Data for Texas (TWDB) daily data.

Is Belton Lake rising or falling?

Belton Lake is falling: its elevation changed -0.27 feet over the week ending September 8, 2026, -1.34 ft over the past month, and -1.77 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

What was Belton Lake's lowest water level on record?

Belton Lake's lowest surface elevation in the daily record since March 9, 1988 was 574.64 feet on October 22, 2023, per the daily record used by this site. As of September 8, 2026 the reservoir is 18.39 feet above that record low.

About this gauge

Belton Lake is a Texas water-supply reservoir in the Brazos River basin. Water Data for Texas publishes a conservation pool elevation of 594.0 ft and a conservation capacity of 432,631 acre-feet, with daily water level and storage recorded since 1954-03-02.

Operator

Texas Water Development Board (Water Data for Texas)

Station

belton

Measurements

Daily water level and conservation storage

River

Brazos River

State

Texas

Full pool reference

594.0 ft

Capacity basis

432,631 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

March 9, 1988 (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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