15 Nov 2022
TasWater’s upgrade of the St John Street Sewage Pump Station in Launceston is now complete, with the new sewer rising main pipeline placed into service last week.
Completion of this project marks a significant milestone for the Tamar Estuary River Health Action Plan (TERHAP) and is a key project to improve the health of kanamaluka/Tamar estuary by achieving the target of a 66 per cent reduction in combined sewage and stormwater overflow volumes in an average rainfall year.
Last week, the project team undertook major night works to connect the new pipeline into the existing pipe network.
TasWater Senior Project Manager Amanda Allen said the upgrade will increase the capacity of the drainage network to improve management of rain events.
“The upgrade increases pumping capacity at the St John Street Sewage Pump Station and the new 450-millimetre diameter pipeline is able to transfer greater volumes of sewage and stormwater flows to the Ti Tree Bend Sewage Treatment Plant, keeping it out of the kanamaluka/Tamar estuary.
“This project is one of many we will be delivering to improve the operation of Launceston's combined system which manages the flow of both sewage and stormwater, especially during rain events,” Ms Allen said.
TERHAP is an initiative of the Tamar Estuary Management Taskforce and the Launceston City Deal, to improve the health of kanamaluka/Tamar estuary.
This project was jointly funded by the Australian and Tasmanian governments, the City of Launceston and TasWater.
There is a video here: TERHAP - St Johns St Nightworks - YouTube