Reservoir · Victoria · Australia · BOM Water Data Online
West Barwon Reservoir
66.9% full
Capacity
22.1 hm³
Volume stored
15 hm³
River
Barwon River East Branch
Year completed
1965
Coordinates
38.538°S, 143.720°E
Last updated
2026-07-28
Current fill
66.9%vs 7 days ago
+0.3%gaining
vs 1 year ago
+26.1%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: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -38.538, 143.720 · Open in Google Maps
About West Barwon Reservoir
As of July 28, 2026, West Barwon Reservoir is filled to 66.9% of its total capacity, holding roughly 15 hm³ of water out of a maximum 22 hm³. At this level the reservoir is within its normal operating range. Of that total, about 22 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.3 pts), and it is 26.1 points above its level on the same date a year earlier.
Across the readings we hold for West Barwon Reservoir — 1095 data points between July 30, 2023 and July 28, 2026 — the level has ranged from a low of 15.9% (May 15, 2025) to a high of 70.5% (January 29, 2024). On average the reservoir is fullest around July and at its lowest around May.
The dam at West Barwon Reservoir was completed in 1965. It is operated by BOM primarily for water supply. It lies within the Barwon River East Branch Basin basin at 38.538°S, 143.720°E.
Key facts
- Current fill level
- 66.9%
- Water stored
- 15 hm³
- Total capacity
- 22 hm³
- Usable capacity
- 22 hm³
- 7-day change
- ▲ 0.3 pts
- Year-on-year
- ▲ 26.1 pts
- Primary use
- Water supply
- River
- Barwon River East Branch
- River basin
- Barwon River East Branch Basin
- Year completed
- 1965
- Operator
- BOM
- Coordinates
- 38.538°S, 143.720°E
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 66.9% | 15 |
| 27 Jul 2026 | 66.6% | 15 |
| 26 Jul 2026 | 66.1% | 15 |
| 25 Jul 2026 | 65.5% | 14 |
| 24 Jul 2026 | 65.2% | 14 |
| 23 Jul 2026 | 65.2% | 14 |
| 22 Jul 2026 | 65.2% | 14 |
| 21 Jul 2026 | 65.3% | 14 |
| 20 Jul 2026 | 65.2% | 14 |
| 19 Jul 2026 | 65.1% | 14 |
| 18 Jul 2026 | 64.8% | 14 |
| 17 Jul 2026 | 64.3% | 14 |
Frequently asked questions
What is the current water level of West Barwon Reservoir?
As of July 28, 2026, West Barwon Reservoir is at 66.9% of its capacity, holding approximately 15 hm³ of water, according to BOM data.
Is West Barwon Reservoir reservoir full?
No. As of July 28, 2026, West Barwon Reservoir is within its normal operating range at 66.9% of its capacity, so it is not full.
Is the water level at West Barwon Reservoir rising or falling?
The level at West Barwon Reservoir has been broadly stable over the latest week on record (+0.3 points).
How much water can West Barwon Reservoir hold?
West Barwon Reservoir has a total capacity of 22 hm³, of which about 22 hm³ is usable storage.
Where is West Barwon Reservoir reservoir located?
West Barwon Reservoir is located in Victoria, Australia, within the Barwon River East Branch Basin basin (coordinates 38.538°S, 143.720°E).
When was West Barwon Reservoir dam built?
The dam at West Barwon Reservoir was completed in 1965.
What is West Barwon Reservoir used for?
West Barwon Reservoir is used primarily for water supply, and is managed by BOM.