The Hawkesbury stream Railway Bridge may be a heritage-listed railway bridge that carries the most Northern railway line across the Hawkesbury stream, situated simply north of the city of borough on the northern outskirts of Sydney, New South Wales, Australia. The railway bridge was to be the last link in a very railway network that coupled Adelaide, Melbourne, Sydney and Brisbane and was a serious engineering accomplishment at the time.

On seven Apr 1887, the one track section of the most Northern line was opened between Hornsby and therefore the Hawkesbury stream. Passengers and merchandise heading north currently blank at the stream Wharf platform on the japanese finish of Long Island, transferring to the double decker, rear paddled-wheeled steamer General Gordon for a three-hour turn on to Broken Bay and up Brisbane Water to Gosford wherever the train service recommenced. Once the 1.7-kilometre-long (1.1 mi) Woy Woy Tunnel was opened on one5 August 1887, the trip was significantly shortened because the boat solely had to cross the stream and negociate the lower reaches of Mullet Creek to succeed in Mullet Creek station. The Union Bridge Company of latest royal family was awarded the contract to construct the bridge in Jan 1886. However, subcontractors were conjointly concerned within the actual construction work. The piers consisted of concrete below water with arenaceous rock masonry on top of. The spans were assembled on Dangar Island and floated one,500 metres (4,921 ft) just about across to the bridge web site on barges. 

The bridge had seven spans of 416 feet (127 m) every for a complete length of two,910 feet (890 m). 5 of the piers were undone to then record depths of between a hundred and fifty to a hundred and sixty feet (46 to forty nine m) below high water. The bridge formally opened on one might 1889.