Cordeaux

As of September 9, 2026, Cordeaux is filled to 77.8% of its total capacity, holding roughly 73 hm³ of water out of a maximum 94 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 (-0.8 pts), and it is 21.9 points below its level on the same date a year earlier.

Across the readings we hold for Cordeaux — 1094 data points between September 11, 2023 and September 9, 2026 — the level has ranged from a low of 61.9% (January 12, 2024) to a high of 102.2% (August 21, 2025). On average the reservoir is fullest around June and at its lowest around January.

The dam at Cordeaux was completed in 1926. It is operated by BOM primarily for water supply. It lies within the Cordeaux River Basin basin at 34.387°S, 150.807°E.