Sydney Harbour Bridge

Sydney Harbour Bridge
View from Port Jackson, October 2019
Coordinates33°51′08″S 151°12′38″E / 33.85222°S 151.21056°E / -33.85222; 151.21056
CarriesBradfield Highway
Cahill Expressway
North Shore railway line
footpath
cycleway
CrossesPort Jackson
LocaleSydney, New South Wales, Australia
BeginsDawes Point
EndsMilsons Point
OwnerTransport for NSW
Maintained byTransport for NSW
Preceded byGladesville Bridge
Characteristics
DesignThrough arch bridge
Trough constructionSteel
Pier constructionGranite-faced concrete
Total length1,149 m (3,770 ft)
Width48.8 m (160 ft)
Height134 m (440 ft)
Longest span503 m (1,650 ft)
No. of spans1
Clearance below49 m (161 ft) at mid-span
No. of lanes8
Rail characteristics
No. of tracks2
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrified1500 V DC overhead
History
Constructed byDorman Long
Construction start28 July 1923 (1923-07-28)
Construction end19 January 1932 (1932-01-19)
Opened19 March 1932 (1932-03-19)
Inaugurated19 March 1932 (1932-03-19)
Replaced bySydney Harbour Tunnel
(concurrent use since 1992)
Statistics
TollTime-of-day (southbound only)
Official nameSydney Harbour Bridge, Bradfield Hwy, Dawes Point – Milsons Point, NSW, Australia
TypeNational Heritage List
Designated19 March 2007
Reference no.105888
ClassHistoric
Place File No.1/12/036/0065
Official nameSydney Harbour Bridge, approaches and viaducts (road and rail); Pylon Lookout; Milsons Point Railway Station; Bradfield Park; Bradfield Park North; Dawes Point Park; Bradfield Highway
TypeState heritage (complex / group)
Designated25 June 1999
Reference no.781
TypeRoad Bridge
CategoryTransport – Land
Location
Map

The Sydney Harbour Bridge is a steel through arch bridge in Sydney, New South Wales, Australia, spanning Sydney Harbour from the central business district (CBD) to the North Shore. The view of the bridge, the Harbour, and the nearby Sydney Opera House is widely regarded as an iconic image of Sydney, and of Australia itself. Nicknamed "The Coathanger" because of its arch-based design, the bridge carries rail, vehicular, bicycle and pedestrian traffic.[1][2]

Under the direction of John Bradfield of the New South Wales Department of Public Works, the bridge was designed and built by British firm Dorman Long of Middlesbrough, and opened in 1932.[3][4] The bridge's general design, which Bradfield tasked the NSW Department of Public Works with producing, was a rough copy of the Hell Gate Bridge in New York City. The design chosen from the tender responses was original work created by Dorman Long, who leveraged some of the design from its own Tyne Bridge.[5]

It is the tenth-longest spanning-arch bridge in the world and the tallest steel arch bridge, measuring 134 m (440 ft) from top to water level.[6] It was also the world's widest long-span bridge, at 48.8 m (160 ft) wide, until construction of the new Port Mann Bridge in Vancouver was completed in 2012.[7][8]

  1. ^ "7BridgesWalk.com.au". Bridge History. Archived from the original on 29 August 2007. Retrieved 23 October 2006.
  2. ^ "Sydney Harbour Bridge". Government of Australia. 14 August 2008. Archived from the original on 12 May 2012. Retrieved 29 May 2012.
  3. ^ "Dr J.J.C. Bradfield". Pylon Lookout: Sydney Harbour Bridge. Archived from the original on 18 February 2011. Retrieved 18 December 2010.
  4. ^ "Olympic connections across the UK". BBC News. 19 January 2012. Archived from the original on 20 March 2012. Retrieved 19 March 2012.
  5. ^ James Weirick (2007). "Radar Exhibition – Bridging Sydney". Archived from the original on 6 September 2008. Retrieved 20 March 2012.
  6. ^ "Sydney Harbour Bridge". culture.gov.au. Australian Government. Archived from the original on 20 September 2010. Retrieved 1 October 2010.
  7. ^ "Widest Bridge". Guinness World Records. Archived from the original on 14 September 2012. Retrieved 15 September 2012.
  8. ^ "Port Mann Bridge". Transportation Investment Corporation. British Columbia: Province of British Columbia. 2007. Archived from the original on 11 September 2012. Retrieved 15 September 2012. Once complete, the new 10-lane Port Mann Bridge will the second largest and longest cable-supported bridge in North America, and at 65 metres wide it will be the widest bridge in the world.