Current water releases for the environment

Water for the environment to be released in the Tanjil, Latrobe, Thomson and Macalister rivers.

Water for the environment will be released from Blue Rock Reservoir, Thomson Reservoir and Lake Glenmaggie into the Latrobe (via the Tanjil), Thomson and Macalister rivers.

These water releases are timed to trigger the upstream migration of juvenile native diadromous fish, eel and lamprey species. These species need high flows followed by increased base flows in the spring months to migrate upstream from the estuary and back into freshwater environments.

Flows will also provide water to in channel aquatic vegetation as well as reduce the number of terrestrial saplings, shrubs and bushes that may be growing in the river channel.

Timing these flows together allows not only instream benefits, but also provides benefits to the lower Latrobe wetlands.

The release will be controlled to increase and decrease gradually and will be below minor flood levels and will not impact on properties or assets next to these rivers.

The expected conditions in these rivers are:

Tanjil River at Tanjil South
Start and end dates of water release: 6 November to 18 November, 2018
Highest flow and water level: 600 megalitres per day; 0.75 metres
Dates when flow is highest: 7 November to 8 November, 2018

Latrobe River at Thoms Bridge
Start and end dates of water release: 8 November to 15 November, 2018
Highest flow and water level: 1,300 megalitres per day; 1.2 metres
Dates when flow is highest: 10 November to 12 November, 2018

Latrobe River at Kilmany South
Start and end dates of water release: 10 November to 17 November, 2018
Highest flow and water level: 1,300* megalitres per day; 1.9 metres (*Note: This is an estimate and may vary slightly depending on inflows from tributaries)
Dates when flow is highest: 12 November to 14 November, 2018

Thomson River at Coopers Creek
Start and end dates of water release: 31 October to 30 November, 2018
Highest flow and water level:
800 megalitres per day; 0.6 metres
Dates when flow is highest: 3 November to 6 November, 2018

Macalister River at Glenmaggie tail gauge
Start and end dates of water release: 2 November to 25 November, 2018
Highest flow and water level:
700 megalitres per day; 0.7 metres
Dates when flow is highest:
5 November to 25 November, 2018


Details provided are estimates, they may change slightly due to operational changes, natural losses in the river and travel time of the water release, particularity in the lower sections of the river.

Please take all reasonable care when you are doing anything near the rivers at these times.


If you would like to receive notifications of future water releases for the environment please complete this form.

Tanjil River at the Moe-Walhalla Road crossing, before a water release for the environment
Tanjil River at the Moe-Walhalla Road crossing, before a water release for the environment
Tanjil River at the Moe-Walhalla Road crossing, during a water release for the envionment where flow is at its highest. Note that water level has increased about 0.3 metres, inundating instream benches and the river is flowing faster.
Thomson River near Coopers Creek campground before a water release for the environment.
Thomson River near Coopers Creek campground before a water release for the environment.
Thomson River near Coopers Creek campground during a water release for the environment where flow is at its highest. Note that water level and flow rate have increased. This makes it easier for fish to move along the river channel.
Thomson River near Coopers Creek campground during a water release for the environment where flow is at its highest. Note that water level and flow rate have increased. This makes it easier for fish to move along the river channel.

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