Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Mackenzie
76.2% full
Capacity
20.2 hm³
Volume stored
15 hm³
River
Fisher River
Year completed
1972
Coordinates
41.676°S, 146.391°E
Last updated
2026-09-07
Current fill
76.2%vs 7 days ago
-4.4%losing
vs 1 year ago
-1.8%year-over-year
7-day trend
↓falling
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: 2026-09-07.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -41.676, 146.391 · Open in Google Maps
About Lake Mackenzie
As of September 7, 2026, Lake Mackenzie is filled to 76.2% of its total capacity, holding roughly 15 hm³ of water out of a maximum 20 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 4.4 percentage points, and it is 1.8 points below its level on the same date a year earlier.
Across the readings we hold for Lake Mackenzie — 1093 data points between September 11, 2023 and September 7, 2026 — the level has ranged from a low of 5.9% (May 27, 2026) to a high of 98.2% (August 30, 2024). On average the reservoir is fullest around September and at its lowest around May.
The dam at Lake Mackenzie was completed in 1972. It is operated by BOM primarily for water supply. It lies within the Fisher River Basin basin at 41.676°S, 146.391°E.
Key facts
- Current fill level
- 76.2%
- Water stored
- 15 hm³
- Total capacity
- 20 hm³
- 7-day change
- ▼ 4.4 pts
- Year-on-year
- ▼ 1.8 pts
- Primary use
- Water supply
- River
- Fisher River
- River basin
- Fisher River Basin
- Year completed
- 1972
- Operator
- BOM
- Coordinates
- 41.676°S, 146.391°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 76.2% | 15 |
| 6 Sep 2026 | 76.2% | 15 |
| 5 Sep 2026 | 74.6% | 15 |
| 4 Sep 2026 | 74.2% | 15 |
| 3 Sep 2026 | 75.2% | 15 |
| 2 Sep 2026 | 76.8% | 16 |
| 1 Sep 2026 | 77.9% | 16 |
| 31 Aug 2026 | 80.6% | 16 |
| 30 Aug 2026 | 83.1% | 17 |
| 29 Aug 2026 | 85.5% | 17 |
| 28 Aug 2026 | 87.8% | 18 |
| 27 Aug 2026 | 89.8% | 18 |