The utility has been using sliplining to reline and rehabilitate to rehabilitate manholes on 4.4 km of the Williamstown Main Sewer between Pasco Street, Williamstown and Scienceworks in Spotswood.
The project has involved the installation of 800 m of 525 mm circular sections, 3.6 km of 1,050 mm by 750 mm ovoid sections, at depths of 8–15 m.
Relining activities are currently taking place on manholes 1–6 and 22–23, while grouting and reinstatement activities are underway at manholes 7–21 and 24–28.
Melbourne Water also announced that it will invest AU$100 million in a sewer relining and manhole rehabilitation program over the next three years, beginning in February 2018.
The six projects will form the project:
- Brighton Main Sewer Upgrade: construction began in February, using spiral wound lining and cured-in-place pipe.
- Maribyrnong River main sewer relining: tenders have closed, contract not yet awarded.
- North Yarra deviation sewer upgrade: construction planned for mid-2018, will use Ribline® spiral wound lining
- Pascoe Vale sewer upgrade: in planning, will use spiral wound lining.
- Gardiners Creek sewer upgrade: in the planning phase.
- Hawthorn main sewer upgrade: in the design phase.
- Kew Pumping Station sewer upgrade: in the planning phase.
An in-depth article on the project was featured in the March edition of Trenchless Australasia. Click here to view the magazine on your PC, Mac, tablet or mobile device.
For more information visit the Melbourne Water website.
If you have news you would like featured in Trenchless Australasia contact Assistant Editor Chloe Jenkins at cjenkins@gs-press.com.au
First published 30 May 2018.