|
Spillway Bridge
Warragamba Dam
The Warragamba Dam Auxiliary Spillway has been designed
to protect the existing 1950s gravity dam against damage or
possible failure during flood events significantly larger than
those anticipated by the original designers
 
Construction of earthworks for the spillway project
commenced in 1999 and the project was completed early
in 2002. Major structural civil works included construction
of the concrete spillway and two concrete bridge structures
utilising SCI Super-T girders in the superstructure.
The Spillway bridge consists of 5 spans each 39.2m on
centres and the low level Valve House Road bridge is also
of 5 spans but with a variable deck width and a very steep
longitudinal gradient
Significant challenges were required to be overcome in
bringing this project to completion whilst working within
the confines of an extremely sensitive site in respect of the
many environmental restrictions. This project will
significantly improve the functionality of this most
important piece of infrastructure
|
