The branch began in the back platform at
Richmond and continued across East Market Street on a
level crossing which was protected by a station employee with a red flag or red light. It then passed around Richmond Oval, continuing in a north west direction along March Street, at the far end of which it left the town centre and entered its own right of way. That dropped through a cutting towards the river on a 1 in 50 grade, before making its way across the alluvial soil of the level floodplain. Trains were running to that point by April 1925. Gravel trains ran from the Nepean Sand and Gravel Siding, located just before the line crossed the Old Kurrajong Road. The material was being used in the construction of
Sydney Harbour Bridge. A very short passenger platform was located on the eastern bank of the Hawkesbury river. It opened in 1928 with the misnomer of Nepean Bridge, and was renamed
Phillip in 1934. The location was a favourite swimming and picnic spot. The railway bridge over the Hawkesbury River was erected on concrete piers which were an extension of those supporting the adjacent road bridge. Upon leaving the river, the line ascended on a 1-in-36 grade through the western river bank and reached
Bells Line of Road which it crossed at a 45-degree angle and entered
North Richmond station, which had a long platform with shelter and a goods siding. After leaving the station, the railway continued in a straight alignment, largely through the property of farmers. Being classed as a "pioneer line", the route was unfenced and the rails second-hand, laid on wooden sleepers with ash ballast. Stopping locations were established between North Richmond and Kurrajong at locations which, in 1928, were named Red Cutting, Kemsleys, Thompsons Ridge, Nurri and Duffys. The line through those locations passed orchards and small farms as it slowly climbed into what is the foothills of the
Blue Mountains. Embankments and cuttings became a feature of the line as it headed towards its terminus,
Kurrajong station, which was located on a site carved from the side of the ridge on which the village was situated. A concrete slab station building stood on the platform. There was a run-round loop, and looped goods siding which served a goods shed and hand crane. == Operations ==