Plan of the Nepean Road and Rail Bridge, constructed after the last privately owned bridge over the Nepean was washed away in floods in 1860. This elevation plan shows all four piers and sections. There is also a faint tracing showing the deck of the bridge and the side view of the bridge. Indications are made of ordinary water level and highest known flood level. River ground level and rock level are indicated. Two sets of inscriptions are recorded on the original plan: