It was the eastern-most section of a proposed but never authorised Armadale to Brookton railway line.

[1][2] The Brookton–Dale River Railway Act 1923, an act by the Parliament of Western Australia assented to on 22 December 1923, authorised the construction of a 45-kilometre (28 mi) long railway line from Brookton west to Dale River.

[4][5] In 1927, a trunk railway line from Fremantle via Armadale, Brookton and Corrigin and on from there to Salmon Gums on the Coolgardie to Esperance railway was proposed, of which only the Fremantle to Armadale and Brookton to Corrigin sections already existed.

[1][6] Construction of the surveyed Brookton to Dale River railway line, as part of a connection to Armadale, was still seen as imminent in 1929.

For this reason, the state government had not constructed any railway lines in the previous two years.