Halbert Lake

As of October 13, 2026, Halbert Lake is filled to 76.8% of its total capacity, holding roughly 6 hm³ of water out of a maximum 7 hm³. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has held broadly steady (-0.3 pts), and it is 6.8 points below its level on the same date a year earlier.

Across the readings we hold for Halbert Lake — 1460 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 67.4% (December 21, 2023) to a high of 100.0% (April 25, 2025). On average the reservoir is fullest around June and at its lowest around October.

It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 32.071°N, 96.416°W.