Bois d'Arc Lake Water Level Today - 532.24 ft, 92.3% Full

Red River · Texas - updated daily from official gauges

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

• Bois d'Arc Lake is 92.3% full - high on this site's capacity scale - as of September 8, 2026. Surface elevation 532.24 feet, storage 339,323 acre-feet (capacity basis 367,609 acre-feet), per Texas Water Development Board data.
• That elevation is 2.26 feet above its record low of 529.98 ft (December 23, 2024, the lowest since the reservoir first filled), in a daily record going back to December 1, 2021 (TWDB's period of record for this reservoir).
• Bois d'Arc Lake is falling: elevation changed -0.19 ft over the past week, -1.01 ft over the past month, and -0.68 ft over the past year, per Texas Water Development Board data.

Bois d'Arc Lake is holding near the top of its operating range at 92.3% of capacity, -0.68 ft over the past twelve months.

Bois d'Arc Lake operating range

Bois d'Arc Lake is operated within a narrow band rather than drawn down and refilled over years. As of September 8, 2026 it sits 1.76 feet below its 534.0 ft full-pool reference. Over the past two years the daily record ranges from 529.98 ft (December 23, 2024) to 535.96 ft (June 12, 2025) - a band of 5.98 feet. The highest reading in the full record is 536.50 ft on June 6, 2024.

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.

Bois d'Arc Lake storage in context

Bois d'Arc Lake water level, past 12 months

92.3% full at the latest reading - across the past 12 months it ranged from 87.5% (May 9, 2026) to 100.0% (July 19, 2026). Percent full is storage against the 367,609-acre-foot capacity basis, not a share of the elevation plotted above.

Bois d'Arc Lake elevation, full record

92.3% full at the latest reading - across the storage record since December 1, 2021 it ranged from 26.1% (February 2, 2022) to 100.0% (July 19, 2026). Percent full is storage against the 367,609-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 Bois d'Arc Lake today?

As of September 8, 2026, Bois d'Arc Lake's surface elevation is 532.24 feet, with 339,323 acre-feet in storage - 92.3% of the 367,609 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.

How full is Bois d'Arc Lake?

Bois d'Arc Lake is 92.3% full as of September 8, 2026. Source: Water Data for Texas (TWDB) daily data.

When was Bois d'Arc Lake last full?

Bois d'Arc Lake was last at or above 95% of its 367,609 acre-foot capacity basis on August 19, 2026. As of September 8, 2026 it is 92.3% full. Source: Water Data for Texas (TWDB) daily data.

Is Bois d'Arc Lake rising or falling?

Bois d'Arc Lake is falling: its elevation changed -0.19 feet over the week ending September 8, 2026, -1.01 ft over the past month, and -0.68 feet over the past year. Source: Water Data for Texas (TWDB) daily data.

What was Bois d'Arc Lake's lowest water level on record?

Bois d'Arc Lake's lowest surface elevation since it first filled (its first near-full reading in this series is from 2024) was 529.98 feet on December 23, 2024, per the daily record used by this site. As of September 8, 2026 the reservoir is 2.26 feet above that record low.

About this gauge

Bois d'Arc Lake is a Texas water-supply reservoir in the Red River basin. Water Data for Texas publishes a conservation pool elevation of 534.0 ft and a conservation capacity of 367,609 acre-feet, with daily water level and storage recorded since 2021-12-01.

Operator

Texas Water Development Board (Water Data for Texas)

Station

bois-darc

Measurements

Daily water level and conservation storage

River

Red River

State

Texas

Full pool reference

534.0 ft

Capacity basis

367,609 acre-feet (Water Data for Texas (TWDB) conservation capacity)

Period of record

December 1, 2021 (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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