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Melbourne Water completes sewer upgrade early

Works have finished the Maribyrnong River Main Sewer upgrade ahead of schedule.

The $35 million project saw a 7.2 km stretch of the sewer upgraded to ensure surrounding residents continue to receive a secure and reliable sewerage service.

The works included relining the inside of the existing sewer with new plastic sleeving, rehabilitating more than 70 ageing and damaged manholes and decommissioning others that were no longer needed.

Following the upgrade, the main sewer now transports about 24 million l of wastewater each day to the Western Treatment Plant.

Melbourne Water Project Manager Tom Ryan praised the project’s delivery partners CPB and the Black and Veatch joint venture for the ability to complete the works before the deadline.

“We did this by having a number of crews working in multiple locations at the same time, which allowed us to complete the works more quickly and efficiently,” he said.

By using trenchless technology, the important cultural and environmental values of the local area were protected.

Melbourne Water worked closely with other agencies on the project including Moonee Valley City Council, Parks Victoria, Wurundjeri Land Council, Friends of Maribyrnong Valley and Friends of Steele Creek.

“We could not have completed this important sewer upgrade without these strong partnerships,” said Mr Ryan.

Mr Ryan said the focus of the project was now on reinstating areas affected by the work activities, in accordance with plans approved by Council and Parks Victoria.

Melbourne Water staff will continue to deliver vital projects while adhering to the latest State Government health measures during the COVID-19 pandemic.

For more information visit the Melbourne Water website.

If you have news you would like featured in Trenchless Australasia contact Journalist Sophie Venz at

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