Engineering and civil construction company John Holland has bagged a $257 million contract to build almost 350 kilometres of railway for Gina’ Rinehart’s Roy Hill Iron Ore project in Western Australia.

In its latest announcement, the Leighton subsidiary says it has been chosen to build a 344-kilometre single heavy haulage line which will transport processed iron ore through remote terrain from the Roy Hill mine in the Pilbara region to purpose built export facilities at Port Kembla. The contract represents the…