It consisted of an island platform which was set into a cutting and public access was via a footbridge and steps.

Points within Dunheved yard limits were operated by levers in the Station Masters Office as were the signals.

Mainline signals were Sydney suburban double light 2 aspects type and the line was track circuited through Dunheved.

The line to St Marys Munitions Works was never electrified and headed from the yard in a western direction and turned north west just after the junction and headed around past some bush land to Dunheved Golf Course & paralleled Links Rd.

About 3 kilometres after the junction of the sidings, the line turns to head in a more westerly direction to St Marys Munitions works.