Sea Cliff Bridge

Sea Cliff Bridge
The Sea Cliff Bridge viewed from the air
Coordinates34°15′14″S 150°58′26″E / 34.25389°S 150.97389°E / -34.25389; 150.97389
CarriesLawrence Hargrave Drive
(also known as Grand Pacific Drive)
CrossesRockface on the Illawarra escarpment/Tasman Sea
LocaleCoalcliff, New South Wales, Australia
BeginsCoalcliff
EndsClifton
Other name(s)Lawrence Hargrave Drive Bridge
OwnerTransport for NSW
Characteristics
Design
  1. Balanced off-shore parallel-to-coast cantilever bridge
    (Sea Cliff Bridge)
  2. Incremental launching girder bridge
    (Lawrence Hargrave Drive Bridge)
MaterialSteel reinforced concrete
Total length
  1. 455.6 metres (1,495 ft)
    (Sea Cliff Bridge)
  2. 210 metres (690 ft)
    (Lawrence Hargrave Drive Bridge)
Width6.3 metres (21 ft) at its widest point
Height41 metres (135 ft) at highest point
Longest span
  1. 3 x 108 metres (354 ft)
    (Sea Cliff Bridge)
  2. 5 x 31 metres (102 ft)
    (Lawrence Hargrave Drive Bridge)
No. of spans
  1. 5 (Sea Cliff Bridge)
  2. 7 (Lawrence Hargrave Drive Bridge)
No. of lanes2
History
Contracted lead designerMaunsell Australia
Engineering design byCoffey Geosciences
Constructed byBarclay Mowlem[1]
Construction end9 December 2005 (2005-12-09)
Construction costA$52 million
Inaugurated11 December 2005 (2005-12-11) by
Morris Iemma, NSW Premier
Location
Map
References
[2][3][4]

The Sea Cliff Bridge, together with the adjoining Lawrence Hargrave Drive Bridge, are two road bridges that carry the scenic Lawrence Hargrave Drive across the rockface on the Illawarra escarpment, located in the northern Illawarra region of New South Wales, Australia. The balanced cantilever and incremental launching girder bridges link the coastal villages of Coalcliff and Clifton and carry two lanes of traffic, and a pedestrian walkway.

The Sea Cliff Bridge was named by Makenzie Russell, who at the time was an eleven-year-old student, following a naming competition opened to local primary school students.[5] The Lawrence Hargrave Drive Bridge and the Lawrence Hargrave Drive are named in honour of Lawrence Hargrave, an Australian engineer, explorer, astronomer, inventor and aeronautical pioneer.

  1. ^ $10 million fix for Sea Cliff Bridge Illawarra Mercury 10 July 2012
  2. ^ "Bridge Construction Statistics". Sea Cliff Bridge. Archived from the original on 12 September 2009. Retrieved 23 May 2009.
  3. ^ Sea Cliff Bridge at Structurae. Retrieved 8 April 2020.
  4. ^ Lawrence Hargrave Drive Bridge at Structurae. Retrieved 8 April 2020.
  5. ^ "Makenzie who?". Sea Cliff Bridge. Archived from the original on 6 March 2016. Retrieved 2 February 2013.