The design and construct contract will generate combined revenue to the joint venture partners of approximately AU$127m (£76m) over a four-year period.
The project involves the design and construction of a new sewage treatment facility with a hydraulic capacity of 140 megalitres/day. It will integrate with the existing treatment plant in Werribee.
Cimic Group chief executive officer Adolfo Valderas said: “This significant project will support Melbourne Water in meeting the needs of Melbourne’s expanding population, now and into the future, and it is an example of the complementary capabilities of the Cimic Group and UGL.”
CPB Contractors managing director Román Garrido said: “We are pleased to contribute our world-class design and construction techniques, and innovative environmental solutions, to deliver the second stage of the upgrade to the Western Treatment Plant for Melbourne Water, and to build a cost-efficient asset of ongoing value.”
Construction is scheduled to start in early 2017, with commissioning expected by the end of the 2018 calendar year. The joint venture will undertake operations and maintenance of the plant for a period of up to two years to the end of 2020.