Woronora River Bridge

The Woronora River Bridge, also known as Woronora Bridge, is a four-lane road bridge that carries River Road across the Woronora River at Woronora, in southern Sydney, New South Wales, Australia. The bridge, at the time of its completion in 2001, was the largest incrementally launched bridge in the Southern Hemisphere with horizontal and vertical curves.

Woronora River Bridge
Woronora River Bridge, view towards Sutherland
Location in greater Sydney
Coordinates34°01′10″S 151°02′57″E
CarriesRiver Road
CrossesWoronora River
LocaleWoronora, New South Wales, Australia
BeginsWoronora
EndsSutherland
Other name(s)Woronora Bridge
Maintained byRoads and Maritime Services
Preceded byLow-level Woronora Bridge (1981- )
Followed byOld Como railway bridge
Characteristics
DesignIncremental launched box girder with suspended deck
MaterialPrestressed concrete
Pier constructionReinforced concrete
Total length521 metres (1,709 ft)
Width19.6 to 26.605 metres (64 to 87 ft)
Height36 metres (118 ft)
Longest span58.7 metres (193 ft)
No. of spans10
Piers in water4
No. of lanes4
History
Constructed byBarclay Mowlem Construction
Construction endFebruary 2001
Construction costA$44.8 million
ReplacesTwo-lane low-level Woronora Bridge (1981; concurrent use)
References
[1][2]

Description

The Woronora Bridge was built to eliminate the steep grades and hairpin bends on the previous route between the southern Sydney suburbs of Sutherland and Bangor. It was completed in 2001 and replaced the two-lane low level Woronora Bridge which opened in 1981, which in turn had replaced a 1912 single-lane timber bridge. The low level bridge remains in use for local traffic.

There is a grade-separated shared pedestrian footpath and cycleway on the northern side of the bridge, located just underneath the road. It can be accessed from Menai Road on the Bangor side and Prince Edward Park Road or River Road on the Sutherland side of the river.

The bridge's design was recognised with the Australian Construction Achievement Award in 2002. With a downhill grade of 4.7% at the launching abutment, it has one of the steepest downhill launchings of any incrementally launched bridge.[3]

  • Aerial view of the low and high level bridges

See also

References
  1. "Woronora River Bridge". 10 April 2010. Retrieved 28 November 2011.
  2. Woronora Bridge at Structurae. Retrieved 18 April 2020.
  3. Bennett, Mark V.; Taylor, A. J.; NSW Roads and Traffic Authority (2002). "Woronora River Bridge, Sydney". Structural Engineering International. 12 (1): 28–31. doi:10.2749/101686602777965766. Retrieved 18 April 2020.


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