The project will generate revenue of approximately NZ$192m (£81m) for Leighton Contractors over the next three years.
The SCI project will upgrade the Takanini Interchange and provide additional lanes on the Southern Motorway between the New Zealand capital’s growth areas of Manukau and Papakura.
Cimic Group executive chairman and chief executive officer Marcelino Fernández Verdes said: “The SCI project targets a critical link in New Zealand’s transport network to serve a growing population and support economic growth.”
Leighton Contractors managing director Román Garrido added: “Delivering new and upgraded transport infrastructure under live traffic conditions is a core capability for Leighton Contractors, the Cimic Group’s construction company. Our team is focused on providing the Transport Agency with innovative design solutions and construction methodologies that deliver value for money, mitigate construction impacts and enhance network operations.”
Key features of the project include constructing approximately 11km of additional lanes, the upgrade of 16 existing bridges and the construction of six new bridges.
The project is scheduled to begin in October 2015 and will be constructed and opened in stages to release early benefits ahead of final project completion in 2018.