A joint venture featuring John Holland, Samsung C&T and Leighton Contractors (Leighton) has secured a deal to build and design Sydney’s M4 East motorway. The M4 East forms part of a project to build the WestConnex road tunnel, completion of which is expected in 2023. The M4 East is planned to be ready in 2019, while the WestConnex road tunnel is the biggest transport infrastructure of its kind in Australia. The deal won by the joint venture partners is valued at US$2.1 billion. The WestConnex project is pla