Berrima railway line

It was a short branch from the Main South line to serve the Berrima Colliery.

The railway crossed the Great Southern Road, later Hume Highway, on the level.

At the colliery end, coal was brought up an incline from the mine which laid across the Wingecarribee River.

Motive power on the railway was a locomotive hired from the NSWGR and it was driven by the company's driver.

They acquired the right-of-way from the Medway company to construct a railway from the old Austermere Junction to a loading point at the old Berrima Colliery summit.

An associated company, Southern Blue Metal Quarries Ltd., established a blue metal quarry at Gingen Bullen and built a branch from, and concurrently with, the Southern Portland Cement line to serve it.

It was originally established about 1955 within the Berrima Cement Works, but transferred to this site in the early 1960s.

Southern Blue Metal acquired "Wonga" from Hoskins Coal & Coke Company at Wongawilli in October, 1927.

It was withdrawn in September, 1929 and scrapped in 1942.This little saddle-tank engine had a long history, being built by Andrew Barklay Sons & Co., in Kilmarnock, Scotland, and first used on the mine railway of the British and Tasmanian Charcoal Iron Company in 1876.

It was sold in 1879 and served in an oil shale mine at Hartley Vale, before moving to the Wongawilli Colliery in 1916.

To enable the vehicle to be turned, a vertical steel bar, with an eye-bolt on the top, ran up through the cab.