Posted by: Erin Shilton June 26, 2017
In April 2017, Abergeldie was engaged by Yarra Valley Water (YVW) to construct Stage 1A – 1D of the new Kalkallo Creek Main Sewer (KCMS). This exciting $28.4 million project is part of the Kalkallo Sewer Servicing Strategy for the Northern Growth corridor, on the outskirts of Melbourne. The total length of the proposed sewer is over 13 km comprising of three stages of which Stage 1 is approximately 3.4km long.
The scope includes:
- Excavation of launch and receival shafts for tunnel boring and pipe jacking.
- Tunnelling and pipe jacking of 3369m of 1.395m internal diameter glass reinforced pipe.
- Maintenance hole installation at various locations of varying sizes from 2400mm to 3500mm.
- A number of smaller connection lines to exiting maintenance holes.
- Installation of a 2400m diameter vortex drop maintenance hole.
The tunnel alignment includes crossings beneath Merri Creek and the Hume Freeway and a connection to the existing Amaroo Main Sewer, where the tunnel boring access shaft will be converted into a manhole.
Tunnel boring and pipe boring is being carried out using Abergeldie’s in-house owned, maintained and operated Herrenknecht equipment.
Detailed surveying is required to confirm the line and level of new sewers and of existing sewers at tie-in positions. Close interface management with parties involved in other real estate development and infrastructure projects nearby, including the Kallo Estate Development, Cloverton Estate Development, Merrifield Business Park Development, Klandy Drive Branch Sewer, Lockerbie South Branch Sewer and Merrifield Central Branch Sewer is a crucial to the smooth running of the project.
Works began in April 2017 and are expected to be completed at the end of June 2018.