The South Coast Railway (also known as the Illawarra Railway) is a commuter and goods railway line from Sydney to Wollongong and Bomaderry in New South Wales, Australia. Beginning at the Illawarra Junction, the line services the Illawarra and South Coast regions of New South Wales. Opening in segments between 1884 and 1893, the South Coast railway line was built primarily to service the Coal Cliff Colliery, in which colonial government ministers and legislators were shareholders and as an economic link between the Illawarra and Sydney. It later connected the later industrial works at Port Kembla to the greater metropolitan freight railway network in Sydney. The line also serves as a public transport link for residents in St George, Sutherland and the Illawarra. The 56-station, line is owned by the NSW government's Transport Asset Holding Entity, with passenger services on the line provided by Sydney Trains' Eastern Suburbs & Illawarra Line service in suburban Sydney and by NSW TrainLink's South Coast Line service in the Illawarra. History Initial proposal The idea for a railway between Sydney and the Illawarra area was first raised in the 1870s. At that time, railways to the north, west and southwest of Sydney had already been constructed, and a committee of prominent citizens formed to investigate the idea felt that a railway might help to develop agricultural and mining potentials in the Illawarra. In 1873, the committee asked the Government Surveyor, R. Stephens, to examine the area between Sydney and Bulli for a suitable route. The suggested route led from Rozelle in inner-western Sydney (at the site of the former Balmain Power Station), crossing the Georges River at Tom Uglys Point, climbing the Gwawley Range on a steep gradient, then following the Port Hacking River towards Stanwell Park. The railway would connect to the main line at Petersham station. When Stephens went to survey the route, he encountered many difficulties with terrain, especially between Gymea Bay and the Port Hacking River, as well as along the river itself. Stephens noted his concerns about the Gymea Bay-Port Hacking route in a letter to the Engineer-in-Chief of the New South Wales Government Railways, John Whitton: [The country] consists of a sort of plateau or tableland about above sea-level, and deeply indented with numerous deep chasms and narrow ravines, the bed of whose creek is, to all intents and purposes, on the same level as the sea... Mr