Reservoir · Tasmania · Australia · BOM Water Data Online
Lake Mackenzie
89.9% full
Capacity
20.2 hm³
Volume stored
18 hm³
River
Fisher River
Year completed
1972
Coordinates
41.676°S, 146.391°E
Last updated
2026-07-28
Current fill
89.9%vs 7 days ago
+3.6%gaining
vs 1 year ago
+60.0%year-over-year
7-day trend
↑rising
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. -41.676, 146.391 · Open in Google Maps
About Lake Mackenzie
As of July 28, 2026, Lake Mackenzie is filled to 89.9% of its total capacity, holding roughly 18 hm³ of water out of a maximum 20 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 3.6 percentage points, and it is 60.0 points above its level on the same date a year earlier.
Across the readings we hold for Lake Mackenzie — 1095 data points between July 30, 2023 and July 28, 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
- 89.9%
- Water stored
- 18 hm³
- Total capacity
- 20 hm³
- 7-day change
- ▲ 3.6 pts
- Year-on-year
- ▲ 60.0 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
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 89.9% | 18 |
| 27 Jul 2026 | 86.3% | 17 |
| 26 Jul 2026 | 86.0% | 17 |
| 25 Jul 2026 | 84.0% | 17 |
| 24 Jul 2026 | 82.6% | 17 |
| 23 Jul 2026 | 83.7% | 17 |
| 22 Jul 2026 | 84.4% | 17 |
| 21 Jul 2026 | 85.9% | 17 |
| 20 Jul 2026 | 87.7% | 18 |
| 19 Jul 2026 | 89.2% | 18 |
| 18 Jul 2026 | 90.3% | 18 |
| 17 Jul 2026 | 90.8% | 18 |
Frequently asked questions
What is the current water level of Lake Mackenzie?
As of July 28, 2026, Lake Mackenzie is at 89.9% of its capacity, holding approximately 18 hm³ of water, according to BOM data.
Is Lake Mackenzie reservoir full?
No. As of July 28, 2026, Lake Mackenzie is high at 89.9% of its capacity, so it is not full.
Is the water level at Lake Mackenzie rising or falling?
The level at Lake Mackenzie is rising — it gained 3.6 percentage points over the latest week on record.
How much water can Lake Mackenzie hold?
Lake Mackenzie has a total capacity of 20 hm³.
Where is Lake Mackenzie reservoir located?
Lake Mackenzie is located in Tasmania, Australia, within the Fisher River Basin basin (coordinates 41.676°S, 146.391°E).
When was Lake Mackenzie dam built?
The dam at Lake Mackenzie was completed in 1972.
What is Lake Mackenzie used for?
Lake Mackenzie is used primarily for water supply, and is managed by BOM.