The Commonwealth Railways were established in 1917 by the Government of Australia with the Commonwealth Railways Act to administer the Trans-Australia and Port Augusta to Darwin railways. In 1975, all assets were acquired by the Australian National Railways Commission, branded as Australian National Railways and subsequently Australian National, trademarked as AN.
Preserved Commonwealth Railways GM class diesel locomotive at the National Railway Museum, Port Adelaide
Preserved NSU class narrow-gauge diesel-electric locomotive at the Old Ghan Heritage Railway and Museum, Alice Springs, in 2006. As with the NT class, these locomotives operated on both the North Australia Railway and the Central Australia Railway.
Ex-Commonwealth Railways NT class locomotives NT67 and NT76 loading a bulk wheat train at Wirrabara in 1987 on the now-abandoned Gladstone–Wilmington narrow-gauge railway line of the former South Australian Railways. The locomotives are badged as Australian National Railways, the entity that took over the operations of both the Commonwealth Railways and the South Australian Railways in 1975.
Preserved carriage from the narrow-gauge Ghan in Alice Springs in February 2009
The Adelaide–Darwin rail corridor consists of the 2975-kilometre (1849-mile) long 1435 mm standard-gauge main line between the South Australian capital city of Adelaide and the Northern Territory capital of Darwin, and the lines immediately connected to it. Preceded by a number of other shorter railways, a transcontinental line through to Darwin was only fully realised in 2004, when the final link from Alice Springs was opened. The line is used by interstate freight trains operated by Aurizon and by The Ghan passenger train operated by Journey Beyond.
Darwin's railway station, known as the Berrimah passenger terminal
The Berrimah rail maintenance depot and freight terminal, at East Arm, are 1 km before the Berrimah passenger terminal and 5 km before the extreme end of the line at East Arm wharfs
Elizabeth River Bridge, 17 km south of Darwin, built for rail and road traffic by the Alice Springs–Darwin railway project in 2003