Riddells Creek to Sunbury Interconnector Detailed Business Case


Estimated Cost:

Estimated cost
$0.9 million

The project will complete the detailed business case to develop a detailed design and assess the benefits of extending the supply of recycled water from Riddells Creek Recycled Water Plant to the Sunbury Recycled Water Scheme. The proposed project would also include upgrading the Riddells Creek Recycled Water Plant to Class B treated water.

If built, the project aims to create opportunities to supply agribusiness properties north of Sunbury, as well as increasing the available supply to farmers in the Parwan-Balliang Irrigation District. Connecting the Riddells Creek Recycled Water Plant to the Sunbury Recycled Water Scheme would link another treatment plant to the recycled water grid in Victoria.

The detailed business case will include:

  • options analysis and detailed design
  • water supply and demand assessment
  • studies including cultural heritage, planning and ecological assessments
  • site investigations including cultural heritage, ecological, geotechnical and topographical survey
  • engineering cost estimates including risk-based cost estimates
  • financial, economic, risk and cost-benefit analyses.
Who's involved

The $0.9 million project is jointly funded by the Australian Government ($0.5 million) and the Victorian Government ($0.5 million).

Please note figures are rounded.

Australian Government Funding source

Australian Government funding is provided through the National Water Grid Fund.

Project status

The project is underway, with the business case expected to be completed in mid 2023.