The Gawler railway line (also known as the Gawler Central railway line) is a suburban commuter railway line in the city of Adelaide, South Australia. It is the only rail route in Adelaide to have no interchange with another line at any station except Adelaide. History The line was opened in 1857 from Adelaide to Gawler, and extended to Kapunda in 1860. Branches were later built from Gawler to termini in Angaston, Truro, Morgan, Robertstown, Peterborough, Spalding and Gladstone. Between Adelaide and Salisbury, the two broad gauge lines are paralleled by one standard gauge line on the Adelaide to Port Augusta line. A little north of Salisbury the standard gauge line heads north-west, and from Salisbury to Gawler there are two broad gauge tracks, with a single broad gauge track north of Gawler. South of Gawler, there were branches to the Holden factory at Elizabeth South, the Penfield railway line which serviced the former munitions factory and other Defence facilities in the area now called Edinburgh, and the Port Pirie line which also branched from the Gawler line at Salisbury railway station until it was converted to standard gauge with a new track laid alongside the broad gauge tracks. Prior to 1987, at Dry Creek, the Dry Creek-Port Adelaide railway line branched west, and the Northfield railway line used to branch east. In the mid 2000s, a new station was built at Mawson Lakes. Renewal and electrification In 2008, the State Government announced a plan to rebuild the Gawler line in preparation for the line to be electrified with the Federal Government also to provide funding. This work saw the track removed, and the track bed, sleepers and track renewed. Dual gauge sleepers were laid to allow for the line to be converted to standard gauge at a future date. The line was closed between North Adelaide and Mawson Interchange for four months from June 2010 for this work to be performed, and between Mawson Interchange and Gawler Central station for seven months from September 2011. Following the withdrawal of Federal Government funding by the then newly elected Abbott Liberal-National government, the electrification was postponed in October 2013. On 6 February 2011, a new Adelaide Metro railcar depot opened to the east of Dry Creek station to replace the facility behind the new Royal Adelaide Hospital site and Adelaide station. The depot is the major maintenance and re-fuelling facility for