In April 1963, the Federal Government decided to replace the narrow gauge line with a new standard gauge line to create an East-West rail corridor from Sydney to Perth.[4] The new line opened in January 1970.[5] Parts of the new line are on a different alignment than the old narrow gauge route. For example, the new line bypasses the town of Oodla Wirra, and followed a new alignment rather than the route of the Silverton Tramway.[6]
In 1982, the Adelaide to Port Augusta line was converted to standard gauge. As part of this the junction with the Port Pirie to Broken Hill line was moved 24 kilometres east to Crystal Brook.
The 371 kilometre line is single track throughout with 13 crossing loops.[2]