Reservoir · Victoria · Australia · BOM Water Data Online
Upper Coliban
48.6% full
Capacity
37.8 hm³
Volume stored
18 hm³
River
Coliban river
Year completed
1903
Coordinates
37.290°S, 144.401°E
Last updated
2026-06-09
Current fill
48.6%vs 7 days ago
+0.1%gaining
vs 1 year ago
+2.4%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: 2026-06-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -37.290, 144.401 · Open in Google Maps
About Upper Coliban
As of June 9, 2026, Upper Coliban is filled to 48.6% of its total capacity, holding roughly 18 hm³ of water out of a maximum 38 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 2.4 points above its level on the same date a year earlier.
Across the readings we hold for Upper Coliban — 1082 data points between June 12, 2023 and June 9, 2026 — the level has ranged from a low of 45.0% (May 5, 2026) to a high of 101.3% (July 9, 2023). On average the reservoir is fullest around September and at its lowest around May.
The dam at Upper Coliban was completed in 1903. It is operated by BOM primarily for water supply. It lies within the Coliban river Basin basin at 37.290°S, 144.401°E.
Key facts
- Current fill level
- 48.6%
- Water stored
- 18 hm³
- Total capacity
- 38 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▲ 2.4 pts
- Primary use
- Water supply
- River
- Coliban river
- River basin
- Coliban river Basin
- Year completed
- 1903
- Operator
- BOM
- Coordinates
- 37.290°S, 144.401°E
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Jun 2026 | 48.6% | 18 |
| 8 Jun 2026 | 48.5% | 18 |
| 7 Jun 2026 | 48.4% | 18 |
| 6 Jun 2026 | 48.2% | 18 |
| 5 Jun 2026 | 48.0% | 18 |
| 4 Jun 2026 | 47.7% | 18 |
| 3 Jun 2026 | 47.3% | 18 |
| 2 Jun 2026 | 47.1% | 18 |
| 1 Jun 2026 | 46.8% | 18 |
| 31 May 2026 | 46.7% | 18 |
| 30 May 2026 | 46.7% | 18 |
| 29 May 2026 | 46.7% | 18 |
Frequently asked questions
What is the current water level of Upper Coliban?
As of June 9, 2026, Upper Coliban is at 48.6% of its capacity, holding approximately 18 hm³ of water, according to BOM data.
Is Upper Coliban reservoir full?
No. As of June 9, 2026, Upper Coliban is within its normal operating range at 48.6% of its capacity, so it is not full.
Is the water level at Upper Coliban rising or falling?
The level at Upper Coliban has been broadly stable over the latest week on record (+0.1 points).
How much water can Upper Coliban hold?
Upper Coliban has a total capacity of 38 hm³.
Where is Upper Coliban reservoir located?
Upper Coliban is located in Victoria, Australia, within the Coliban river Basin basin (coordinates 37.290°S, 144.401°E).
When was Upper Coliban dam built?
The dam at Upper Coliban was completed in 1903.
What is Upper Coliban used for?
Upper Coliban is used primarily for water supply, and is managed by BOM.