CurrentMelbourne Water manages essential water and sewerage services for the region. We plan and deliver major infrastructure that supports a secure, resilient and sustainable water system for current and future generations.
What we’re doing
We’re planning a new underground drinking water pipeline that will be around 10 kilometres in length. It will connect the Winneke-Preston Pipeline at Parsons Road, Eltham to the Silvan-Preston Pipeline at Harris Gully Road, Warrandyte. This new pipeline will:
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help support a reliable water supply for our growing communities
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improve our ability to better manage drought, heatwaves and unexpected outages
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support long‑term population growth across Melbourne’s north and west.
No construction works are taking place at this stage.
Why this is important
Melbourne’s population is growing and demand for water is increasing. To continue providing a safe and reliable water supply, we need to invest in infrastructure that helps us adapt.
This project will:
- improve how water can be moved across Melbourne’s supply network
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reduce reliance on energy‑intensive pumping
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provide additional operational flexibility during high‑demand periods
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support long‑term water security as Melbourne grows
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allow better use of existing treatment and pipeline capacity within the network.
Where the project is happening
The project spans parts of Nillumbik Shire Council and Manningham City Council, including a section across the Yarra River.
Through detailed technical assessments and engagement with AusNet, Councils and land managers, many considerations were evaluated before identifying the preferred alignment. This alignment was selected because it follows the AusNet transmission powerline easement, which minimises impacts on vegetation, residents and local roads.
We will share detailed maps as the design phase progresses.
What to expect
The design phase is expected to occur between July 2026 and mid-2028. During this time, you may notice Melbourne Water crews and specialist contractors completing:
- environmental surveys
- cultural heritage assessments
- geotechnical drilling and soil sampling
- utility investigations
- survey work in reserves, easements and road reserves
These activities help us understand local conditions and finalise the design.
All investigation sites will remain safely accessible where possible, and any temporary impacts (such as short-term access changes) will be communicated in advance. Where access to private property is needed, we will reach out directly.
Cultural heritage
The Yarra River corridor holds cultural, ceremonial and ecological significance for the Wurundjeri Woi‑wurrung people.
We are working in partnership with the Wurundjeri Woi‑wurrung Cultural Heritage Aboriginal Corporation to ensure planning and investigations meet Cultural Heritage Management Plan requirements.
Environmental considerations
We’re undertaking detailed environmental assessments to help us minimise impacts to vegetation, wildlife habitat and waterways. This includes:
- flora and fauna surveys
- tree assessments
- biodiversity mapping
- planning for reinstatement
We will work closely with Councils and land managers to ensure any impacts are minimised and managed appropriately.
Frequently asked questions
The following document provides answers to questions for stakeholders, local residents, community groups and all those interested in the project. It will continue to be updated with more information as the project progresses.
Don't see your question answered here? Email us at [email protected].
Contact us
If you have any questions or would like to know more, contact us on:
