Reservoir · Victoria · Australia · BOM Water Data Online
Upper Coliban
100.3% full
Capacity
37.8 hm³
Volume stored
38 hm³
River
Coliban river
Year completed
1903
Coordinates
37.290°S, 144.401°E
Last updated
2026-07-27
Current fill
100.3%vs 7 days ago
0.0%stable
vs 1 year ago
+52.1%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: 2026-07-27.
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 July 27, 2026, Upper Coliban is filled to 100.3% of its total capacity, holding roughly 38 hm³ of water out of a maximum 38 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 52.1 points above its level on the same date a year earlier.
Across the readings we hold for Upper Coliban — 1082 data points between July 30, 2023 and July 27, 2026 — the level has ranged from a low of 45.0% (May 5, 2026) to a high of 100.6% (July 30, 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
- 100.3%
- Water stored
- 38 hm³
- Total capacity
- 38 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 52.1 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
- July 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Jul 2026 | 100.3% | 38 |
| 26 Jul 2026 | 100.3% | 38 |
| 25 Jul 2026 | 100.3% | 38 |
| 24 Jul 2026 | 100.3% | 38 |
| 23 Jul 2026 | 100.3% | 38 |
| 22 Jul 2026 | 100.3% | 38 |
| 21 Jul 2026 | 100.3% | 38 |
| 20 Jul 2026 | 100.3% | 38 |
| 19 Jul 2026 | 100.0% | 38 |
| 18 Jul 2026 | 99.5% | 38 |
| 17 Jul 2026 | 98.7% | 37 |
| 16 Jul 2026 | 97.9% | 37 |
Frequently asked questions
What is the current water level of Upper Coliban?
As of July 27, 2026, Upper Coliban is at 100.3% of its capacity, holding approximately 38 hm³ of water, according to BOM data.
Is Upper Coliban reservoir full?
Upper Coliban is essentially full, sitting at 100.3% of capacity as of July 27, 2026.
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 (0.0 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.