John Holland has been awarded a massive $257 million subcontract for the railway track at the Roy Hill iron ore mine.
The award will see it build close to 350 kilometres of heavy haulage track.
The contract was awarded by Samsung C&T and will see John Holland provide rail construction, track works and infrastructure through the remote terrain of the Pilbara.
John Holland's parent company Leighton Holdings' CEO Hamish Tyrwhitt said "we are proud to be involved in such a major undertaking for Western Australia; Roy Hill is a critical project for the state and a strong indication that the nation is moving to close its infrastructure deficit and improve productivity".
The two year, construct only project, will begin next month, and at its peak employ around 270 people.
Its contract involves track works to the main line, marshalling yard, mine loading loop, port loading loop, wayside loops and spurs, and the construction yard.
It also involves construction of a logistics yard and ballast yards.