Reservoir · Western Australia · Australia · BOM Water Data Online
Serpentine Pipehead
72.4% full
Capacity
2.6 hm³
Volume stored
2 hm³
River
Serpentine River
Year completed
1957
Coordinates
32.390°S, 116.075°E
Last updated
2026-07-26
Current fill
72.4%vs 7 days ago
-0.6%losing
vs 1 year ago
+3.9%year-over-year
7-day trend
→stable
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-07-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -32.390, 116.075 · Open in Google Maps
About Serpentine Pipehead
As of July 26, 2026, Serpentine Pipehead is filled to 72.4% 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 held broadly steady (-0.6 pts), and it is 3.9 points above its level on the same date a year earlier.
Across the readings we hold for Serpentine Pipehead — 1067 data points between July 30, 2023 and July 26, 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.
Key facts
- Current fill level
- 72.4%
- Water stored
- 2 hm³
- Total capacity
- 3 hm³
- 7-day change
- ▼ 0.6 pts
- Year-on-year
- ▲ 3.9 pts
- Primary use
- Water supply
- River
- Serpentine River
- River basin
- Serpentine River Basin
- Year completed
- 1957
- Operator
- BOM
- Coordinates
- 32.390°S, 116.075°E
- Last updated
- July 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Jul 2026 | 72.4% | 2 |
| 25 Jul 2026 | 73.0% | 2 |
| 24 Jul 2026 | 73.9% | 2 |
| 23 Jul 2026 | 74.4% | 2 |
| 22 Jul 2026 | 74.8% | 2 |
| 21 Jul 2026 | 75.1% | 2 |
| 20 Jul 2026 | 75.5% | 2 |
| 19 Jul 2026 | 75.5% | 2 |
| 18 Jul 2026 | 74.3% | 2 |
| 17 Jul 2026 | 71.5% | 2 |
| 16 Jul 2026 | 69.7% | 2 |
| 15 Jul 2026 | 69.3% | 2 |
Frequently asked questions
What is the current water level of Serpentine Pipehead?
As of July 26, 2026, Serpentine Pipehead is at 72.4% of its capacity, holding approximately 2 hm³ of water, according to BOM data.
Is Serpentine Pipehead reservoir full?
No. As of July 26, 2026, Serpentine Pipehead is within its normal operating range at 72.4% of its capacity, so it is not full.
Is the water level at Serpentine Pipehead rising or falling?
The level at Serpentine Pipehead has been broadly stable over the latest week on record (-0.6 points).
How much water can Serpentine Pipehead hold?
Serpentine Pipehead has a total capacity of 3 hm³.
Where is Serpentine Pipehead reservoir located?
Serpentine Pipehead is located in Western Australia, Australia, within the Serpentine River Basin basin (coordinates 32.390°S, 116.075°E).
When was Serpentine Pipehead dam built?
The dam at Serpentine Pipehead was completed in 1957.
What is Serpentine Pipehead used for?
Serpentine Pipehead is used primarily for water supply, and is managed by BOM.