Brantley Reservoir Water Level

New Mexico · updated daily from the U.S. Bureau of Reclamation

3246.88 ft

Brantley Reservoir is about average for this time of year and rising (+0.70 ft in the last 7 days).

Change since yesterday: +0.00 ft

Reading as of 2026-08-14 · higher than 55% of August readings on record

Where Brantley Reservoir sits historically

TODAY 3246.88 ftRECORD LOW3238.2 ft2022-08-16RECORD HIGH3258.01 ft2021-08-18

Today's level compared with every reading in our 5.5-year record for this lake.

Since yesterday

+0.00 ft

7-day change

+0.70 ft

30-day change

+4.32 ft

1-year change

-1.11 ft

Last 30 days

2026-07-153238.3–3248.0 ft2026-08-14

Last 12 months

2025-08-143237.8–3252.7 ft2026-08-14

Full history (5.5 years)

2021-02-223235.8–3260.2 ft2026-08-13

Brantley Reservoir records and averages

Current level3246.88 ft
Record high3258.01 ft (2021-08-18)
Record low3238.2 ft (2022-08-16)
Average of all readings3249.13 ft
Data span5.5 years (1,997 readings)

Frequently asked questions

Is Brantley Reservoir full right now?

As of 2026-08-14, Brantley Reservoir sits at 3246.88 ft, which is about average for this time of year.Over the past 30 days the level has risen 4.32 ft.

What is the water level at Brantley Reservoir today?

The most recent reading is 3246.88 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Brantley Reservoir has ever been?

The highest level in our records is 3258.01 ft on 2021-08-18. The lowest is 3238.2 ft on 2022-08-16. Our record covers about 5.5 years of readings.

Is Brantley Reservoir low for this time of year?

Compared with every August in our records, the current level is higher than 55% of them — about average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Brantley Reservoir changing right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Brantley Reservoir has risen 4.32 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.

How much has Brantley Reservoir changed over the past year?

The level is -1.11 ft compared with this date last year (3246.88 ft today). The full-history chart above covers 5.5 years, with a record high of 3258.01 ft and a record low of 3238.2 ft.

Nearby lakes in New Mexico

Lake Avalon water level
18.44 ft · rising
Avalon Reservoir water level
3175.48 ft · rising
TWO R Reservoir (ROCKY ARROYO Reservoir) water level
53.88 ft · steady
TWO R Reservoir (RIO HONDO Reservoir) water level
77.02 ft · steady
Alto Reservoir water level
4.33 ft · steady
Lake Sumner water level
36.18 ft · steady

Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All New Mexico lake levels.