The kanamaluka/Tamar estuary is a special landscape that connects our community. We appreciate its importance to Launceston and the wider community, which is why we are making investments today to ensure its health for future generations.
As part of the Tamar Estuary River Health Action Plan (TERHAP), we are delivering new sewerage infrastructure for the city to improve the health of kanamaluka/Tamar estuary and the environment that surrounds it.
The Ti-Tree Bend Sewage Treatment Plant Covered Storage Project will involve the construction of a new network storage tank that has two compartments, an overflow tank, and a balance tank, with a combined capacity of 10 megalitres.
The future flows to these new storage tanks will be transferred via the New Sewer Pipeline we are currently building 40 metres under the estuary riverbed between our Margaret Street Pump Station and the Ti-Tree Bend Sewage Treatment Plant.
Once completed, this new storage capacity will enable us to temporarily store and buffer any incoming flows from the combined Launceston sewer system before we then transfer these flows to the existing plant for the final phase of treatment.
Over the past few months, we have been continuing with site ground improvement works in preparation for the construction of a new 10 megalitre covered storage tank.
The extensive Mass Soil Mixing works have been completed. This included mixing and stabilising more than 28,000 cubic metres of soil, which is equivalent to filling eleven Olympic-sized swimming pools.
The project recently took delivery of a new piling rig from Switzerland. Over the coming weeks this rig will begin installing nearly 120 piles, which are long columns made of concrete, almost 20 metres deep into the ground to provide stability and strength for the new storage tank. This piling is expected to be a relatively quiet technique.
Towards the end of the year, we expect to complete the foundation works and then begin constructing the new 10 megalitre covered storage facility and supporting infrastructure.
The new storage tank is designed to balance the flow from the New Sewer Pipeline, meaning less overflow events into the kanamaluka/Tamar Estuary.
The project is expected to be completed during 2026.
The Tamar Estuary River Health Action Plan (TERHAP or the Plan) is an initiative of the Tamar Estuary Management Taskforce (TEMT) and the Launceston City Deal, to improve the health of kanamaluka/Tamar Estuary.
TERHAP is jointly funded by the Australian and Tasmanian governments, the City of Launceston and TasWater.
As part of the Tamar Estuary River Health Action Plan (TERHAP), we will be delivering new sewerage infrastructure to improve the health of kanamaluka/Tamar estuary.
The kanamaluka/Tamar estuary is a special landscape that connects our community, which is why we are making investments today to ensure its health for future generations.
TasWater proudly acknowledges the Tasmanian Aboriginal people as the custodians of lutruwita/ Tasmania – Aboriginal land, sea and waterways. We pay our deep respects to the Elders past and present and acknowledge today’s Tasmanian Aboriginal community.
Have questions or want to learn more about a project, contact us below:
| Phone | 13 6992 |
|---|---|
| Website | www.taswater.com.au |
| In writing | GPO Box 1393, Hobart TAS 7001 |
