Fast Facts

Fourth longest single-span steel arch bridge in the world (longest is the Lupu Bridge in Shanghai (others two are Bayonne Bridge in New York and The New River Gorge Bridge in West Virginia USA)

Span of Arch 503m (1,650ft)
Height to top of arch 134m (440ft) above mean sea level
Height to top of aircraft beacon 141m above mean sea level
Weight of steel arch 39,000 tonnes
Total weight of bridge 52,800 tonnes including arch and mild steel approach spans
Bridge movement The bridge can rise or fall 180mm due to heating or cooling
Width of deck 49 metres
Clearance for shipping 49 metres
Height of pylons 89 metres above mean sea level
Base of each abutment tower 68 metres across and 48 metres long (two pylons rest on each abutment tower)
Total length of bridge 1,149 metres including approach spans
Bearing pins Each of the four pins measures 4.2 metres long and 368 millimetres in diameter
Thrust on bearings Approximately 20,000 tonnes maximum load on each bearing
Number of rivets Approximately 6,000,000
Largest rivet Weighed 3.5 kilograms and was 395 millimetres long
Longest hanger 58.8 metres
Shortest hanger 7.3 metres
Rock excavated for foundations 122,000 cubic metres
Concrete used for bridge 95,000 cubic metres
Granite facing used on pylons and piers 17,000 cubic metres
Allowance for deck expansion 420 millimetres
Number of panels in arch 28, each 18.28 metres wide
Record tonnage erected 589 tonnes of steelwork was erected on the arch in one day on 26 November 1929
Paint required 272,000 litres per coat
Google Earth coordinates 33º51'08"S, 151º12'38"E
(Click above to download the coordinates)
Initial contract price £4,217,721, 11 shillings and 10 pence.
Final cost Over £10 million, more than double the original quote. Final payment for the construction loans not made until October 1988.













  • Australian Constructors Association
  • Cochlear
  • Defence Materiel Organisation (DMO)
  • Defence Science and Technology Organisation (DSTO)
  • Leighton Holdings Limited
  • Resmed
  • Thales
  • ARUP
  • KBR