Waco Lake Water Level Today - 459.80 ft, 89.5% Full

Brazos River · Texas - updated daily from official gauges

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

• Waco Lake is 89.5% full - high on this site's capacity scale - as of September 8, 2026. Surface elevation 459.80 feet, storage 168,979 acre-feet (capacity basis 188,891 acre-feet), per Texas Water Development Board data.
• That elevation is its lowest September reading since 2023, and 10.84 feet above its record low of 448.96 ft (February 22, 2000), in a daily record going back to October 3, 1995 (TWDB's period of record for this reservoir).
• Storage is 105% of the September 8 average across 31 years of record.
• Waco Lake is falling: elevation changed -0.28 ft over the past week, -1.40 ft over the past month, and -2.47 ft over the past year, per Texas Water Development Board data.

Waco Lake is within 10.84 feet of the lowest surface elevation in its daily record, set on February 22, 2000.

Waco Lake vs its record low

In the daily record used by this site (going back to October 3, 1995 (TWDB's period of record for this reservoir)), Waco Lake's lowest surface elevation was 448.96 feet on February 22, 2000, when storage was 103,709 acre-feet. As of September 8, 2026, Waco Lake is at 459.80 feet - 10.84 feet above that record. The record high in the same series was 485.82 ft on July 10, 2007.

Waco Lake storage in context

Waco Lake water level, past 12 months

89.5% full at the latest reading - across the past 12 months it ranged from 89.5% (September 8, 2026) to 100.0% (July 2, 2026). Percent full is storage against the 188,891-acre-foot capacity basis, not a share of the elevation plotted above.

Waco Lake elevation, full record

89.5% full at the latest reading - across the storage record since August 2, 1964 it ranged from 0.0% (August 2, 1964) to 105.5% (September 28, 2010). Percent full is storage against the 188,891-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 Waco Lake today?

As of September 8, 2026, Waco Lake's surface elevation is 459.80 feet, with 168,979 acre-feet in storage - 89.5% of the 188,891 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is Waco Lake?

Waco Lake is 89.5% full as of September 8, 2026. Its storage is 105% of the September 8 average across its record since 1995. Source: Water Data for Texas (TWDB) daily data.

When was Waco Lake last full?

Waco Lake was last at or above 95% of its 188,891 acre-foot capacity basis on August 11, 2026. As of September 8, 2026 it is 89.5% full. Source: Water Data for Texas (TWDB) daily data.

Is Waco Lake rising or falling?

Waco Lake is falling: its elevation changed -0.28 feet over the week ending September 8, 2026, -1.40 ft over the past month, and -2.47 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

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

Waco Lake's lowest surface elevation in the daily record since October 3, 1995 was 448.96 feet on February 22, 2000, per the daily record used by this site. As of September 8, 2026 the reservoir is 10.84 feet above that record low.

About this gauge

Waco Lake is a Texas water-supply reservoir in the Brazos River basin. Water Data for Texas publishes a conservation pool elevation of 2,003.0 ft and a conservation capacity of 188,891 acre-feet, with daily water level and storage recorded since 1964-08-02.

Operator

Texas Water Development Board (Water Data for Texas)

Station

waco

Measurements

Daily water level and conservation storage

River

Brazos River

State

Texas

Full pool reference

2,003.0 ft

Capacity basis

188,891 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

October 3, 1995 (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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