Myalup-Wellington Water Project

Under Procurement
Myalup-Wellington Water Project

The Myalup-Wellington Water Project comprises a range of integrated above and below dam infrastructure components aimed at reducing salinity in the Wellington Dam, located approximately 200 kilometres south of Perth, and surrounding area. The project scope includes:

  • a new water treatment plant near Collie with the capacity to process 20 gigalitres per year,
  • a new weir at Burekup upstream of its current location
  • a closed pipeline system from the new Burekup Weir to replace existing open channels, and
  • reforestation of approximately 2,000 to 4,000 hectares of plantation in the catchment.

Key Dates

Oct 2018 RFT Open
Aug 2019 RFT Close
2021 Expected Construction Commencement
2025 Expected Construction Completion

Funding contributions

User charges
Federal Government
WA Government


Debt Finance: National Water Infrastructure Development Fund


Procuring Agency: Collie Water
Shortlist: Water Treatment Plant - Clough Suez Water Partners, Osmoflo, Sacyr Westforce JV. Water Networks - Ertech DM Civil JV, Georgiou Cape JV, MPC Kinetic, Sacyr Westforce JV
Related contracts:
Engineering services
Successful Tenderer - GHD


Jun 2016 The Federal Government announced $1 million from the National Water Development Fund for a feasibility study into the proposed project.
Jan 2017 The WA Government allocated $37 million to the project under the Royalties for Regions initiative.
Nov 2017 Infrastructure Australia upgraded the the project from a Priority Initiative to a Priority Project on the Infrastructure Priority List.
Apr 2018 The Federal Government announced $140 million in funding and a concessional loan of up to $50 million.
Aug 2018 Collie Water opened tenders for the for the Water Treatment Plan contract. This includes the design and construction of the water treatment plant and the operation and maintenance of the plant for up to 20 years.
Nov 2018 Collie Water opened tenders for the for the Water Networks contract.
Jan 2019 Collie Water shortlisted Clough Suez Partners, Osmoflo and the Sacyr Westforce JV for the Water Treatment Plant contract.
Feb 2019 Collie Water shortlisted Ertech DM Civil JV, Georgiou Cape JV, MPC Kinetic and the Sacyr Westforce JV for the Water Networks contract.
Estimated Total Cost
Water & Sewerage
Procurement approach
Traditional Procurement |
Western Australia | National |
Infrastructure Australia status
Priority Project (near-term, 0-5 years)
Infrastructure agency resources
Infrastructure Australia Project Evaluation
Project pages
Collie Water