The southern abutment is constructed in concrete and face Hawkesbury sandstone and rises approximately above the shoreline. It is classical in detail, particularly to the side elevations with the north-facing elevation constructed in ashlar stonework. Constructed on top of the abutment is a s concrete block staff building associated with the maintenance depot. Within this 1960s structure and affixed to the top of the abutment is a large cast iron plaque which formally sat on the crest of the first span of the former rail bridge. It commemorates construction of the bridge by the Union Bridge Company. On the southern abutment there is a range of historic graffiti dating from 1901 to the present day.