Reservoir · South Australia · Australia · BOM Water Data Online
Millbrook
62.9% full
Capacity
15.7 hm³
Volume stored
10 hm³
River
River Torrens
Year completed
1918
Coordinates
34.826°S, 138.811°E
Last updated
2026-07-25
Current fill
62.9%vs 7 days ago
+0.1%gaining
vs 1 year ago
+7.8%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: 2026-07-25.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -34.826, 138.811 · Open in Google Maps
About Millbrook
As of July 25, 2026, Millbrook is filled to 62.9% of its total capacity, holding roughly 10 hm³ of water out of a maximum 16 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 (+0.1 pts), and it is 7.8 points above its level on the same date a year earlier.
Across the readings we hold for Millbrook — 1091 data points between July 30, 2023 and July 25, 2026 — the level has ranged from a low of 44.1% (May 25, 2024) to a high of 84.3% (October 7, 2023). On average the reservoir is fullest around October and at its lowest around May.
The dam at Millbrook was completed in 1918. It is operated by BOM primarily for water supply. It lies within the River Torrens Basin basin at 34.826°S, 138.811°E.
Key facts
- Current fill level
- 62.9%
- Water stored
- 10 hm³
- Total capacity
- 16 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▲ 7.8 pts
- Primary use
- Water supply
- River
- River Torrens
- River basin
- River Torrens Basin
- Year completed
- 1918
- Operator
- BOM
- Coordinates
- 34.826°S, 138.811°E
- Last updated
- July 25, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 25 Jul 2026 | 62.9% | 10 |
| 24 Jul 2026 | 62.8% | 10 |
| 23 Jul 2026 | 62.7% | 10 |
| 22 Jul 2026 | 62.7% | 10 |
| 21 Jul 2026 | 62.5% | 10 |
| 20 Jul 2026 | 62.5% | 10 |
| 19 Jul 2026 | 62.5% | 10 |
| 18 Jul 2026 | 62.4% | 10 |
| 17 Jul 2026 | 62.2% | 10 |
| 16 Jul 2026 | 62.1% | 10 |
| 15 Jul 2026 | 62.0% | 10 |
| 14 Jul 2026 | 61.8% | 10 |
Frequently asked questions
What is the current water level of Millbrook?
As of July 25, 2026, Millbrook is at 62.9% of its capacity, holding approximately 10 hm³ of water, according to BOM data.
Is Millbrook reservoir full?
No. As of July 25, 2026, Millbrook is within its normal operating range at 62.9% of its capacity, so it is not full.
Is the water level at Millbrook rising or falling?
The level at Millbrook has been broadly stable over the latest week on record (+0.1 points).
How much water can Millbrook hold?
Millbrook has a total capacity of 16 hm³.
Where is Millbrook reservoir located?
Millbrook is located in South Australia, Australia, within the River Torrens Basin basin (coordinates 34.826°S, 138.811°E).
When was Millbrook dam built?
The dam at Millbrook was completed in 1918.
What is Millbrook used for?
Millbrook is used primarily for water supply, and is managed by BOM.