Serpentine Pipehead

As of September 6, 2026, Serpentine Pipehead is filled to 76.1% of its total capacity, holding roughly 2 hm³ of water out of a maximum 3 hm³. At this level the reservoir is within its normal operating range.

Over the most recent week on record the fill level has fallen by 2.5 percentage points, and it is 63.4 points above its level on the same date a year earlier.

Across the readings we hold for Serpentine Pipehead — 1065 data points between September 10, 2023 and September 6, 2026 — the level has ranged from a low of 1.8% (November 30, 2025) to a high of 89.4% (May 7, 2025). On average the reservoir is fullest around May and at its lowest around December.

The dam at Serpentine Pipehead was completed in 1957. It is operated by BOM primarily for water supply. It lies within the Serpentine River Basin basin at 32.390°S, 116.075°E.