Epping Main Sewer Project
We are constructing new sewerage infrastructure in Lalor, Campbellfield and Epping to reduce the likelihood of sewage spills occurring during storm events, and to cater for growth in Melbourne’s northern suburbs.
The project involves our contractor, John Holland Pty Ltd, building a 2.4-kilometre-long large-diameter sewer pipe at depths of up to 35 metres.
The pipe will be constructed by tunnelling underground using large Tunnel Boring Machines (TBMs), and the tunnel will cross under the Merri Creek and Hume Freeway.
John Holland Pty Ltd needs to build five construction shafts to enable the underground tunnelling to occur, and four of these shafts will become permanent access manholes after the project works have been completed.
The first stage of works involves excavating the shafts to depths of up to 35 metres. Once this is done, we will use cranes to lower the TBM down into the shaft, ready for tunnelling work to begin.
The first stage of works commenced in early December in land to the west of the Hume Freeway (near Rotino Crescent).
John Holland Pty Ltd is working above-ground to set up construction sites, including excavating the shaft sites. The shaft sites should be completed by October 2018.
Construction activities started in early December 2017, and should be completed in mid-2019, depending on weather and ground conditions.
The first stage of works involves excavating deep shafts, and this will occur between December 2017 and October 2018.
The second stage of works involves the TBM tunnelling, and this will occur between May 2018 and early 2019.
The proposed timeline for tunnelling works is:
- ‘Freeway’ shaft towards the ‘Whittlesea Gardens’ shaft (March 2018 - June 2018)
- 'Barry Road' shaft to 'Freeway' shaft (June 2018 - September 2018)
- 'Barry Road' shaft to 'Temporary' shaft (August 2018 - December 2018)
- 'Horne Street' shaft to 'Temporary' shaft (December 2018 - March 2019).
Please note these dates are subject to change.
John Holland Pty Ltd is working at ground level Monday to Friday, between 7.00am and 5.00pm. Some Saturday works will also be required. Once tunnelling works have started, tunnelling activities will occur 24 hours a day, 7 days a week, though these activities should not be noticeable at ground level.
The works associated with this project will not have any impact on customers’ water and sewerage services.
People close to the work sites may notice some noise from construction equipment and truck beepers during work hours.
While there will be visible construction activities near the shaft sites, local streets and the walking tracks in the Merri Parklands will remain open.
The ‘Whittlesea Gardens’ shaft site is only be used as a ‘retrieval shaft’, where the TBM will be lifted out after it has tunnelled there from the ‘Freeway’ shaft. The TBM will be dismantled and transported away with trucks.
Yarra Valley Water and John Holland Pty Ltd is making every effort to minimise the impact of these works on people in the community, and on the natural landscape.