Melbourne Water is planning to build a new pipeline to meet growing demand for water in the northern and western suburbs of Greater Melbourne.

What's happening and when

Location of works

The project involves construction of a 20 kilometre pipeline from the Yan Yean Water Treatment Plant to the proposed Bald Hill Reservoir site.

Map of pipeline alignment from Yan Yean Reservoir to Bald Hill along Plenty and Grants roads

Works to be undertaken

Over the next six to twelve months we will be refining the pipeline alignment. Investigations of the proposed alignment will be undertaken in late 2019 including environmental surveys.

You may notice some activity, including on foot survey crews and geotechnical drill rigs taking soil samples in the area.

Most of the investigation will be along the road reserve. However, as part of the investigations and surveying we may require access to some properties. We will be in touch with individual landowners directly to organise this.

Construction is scheduled to begin in 2021.

Why we are doing these works

The population of Melbourne is projected to increase from 4.6 million in 2016 to 6 million in 2031 and ultimately to 8 million people in 2051.

Around 60% of Melbourne’s population growth is expected to occur in Melbourne’s northern and western suburbs with a projected new 851,000 residents by 2031 (Victorian in Future 2016, Victorian Government).

The new pipeline has been designed and timed to meet growing water demands and improve reliability of supply in the northern suburbs, while freeing up capacity to transfer more water to the western suburbs.

As the new pipeline is being constructed to transfer water no connections will be made to properties along the alignment, however Melbourne Water will work with the Country Fire Authority to investigate emergency supply connections.

Impacts on local residents and visitors

The initial investigation works are minor and are not expected to cause disruption. These works will include:

  • survey personnel
  • work vehicles with attached drill rigs to take soil samples
  • flora and fauna surveys on foot and in vehicle

More information about project impacts will be provided closer to the start date for the project.

Proposed timings

Milestone Target date Actual date
Investigation, start 1/7/2015 Completed
Investigation, end 30/11/2016 Completed
Feasibility study, start 1/1/2017 Completed 
Feasibility study, end 31/3/2019 Completed
Functional design, start 1/7/2019 Completed
Functional design, end 30/6/2020 Completed
Detailed design, start 1/7/2020  
Detailed design, end 31/3/2021  
Construction, start 1/7/2021  
Construction, end 30/6/2023  
Complete project by June 2022/23 30/6/2023  

Construction is scheduled to begin in 2021. More information will be provided as the project progresses.

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Last updated:
26 November 2019