This paper describes the design of the marine riser structures, including the
design measures for sealing and protection from flooding, dewatering and
connection to the main tunnels, for the Gold Coast desalination plant in
Queensland. The risers connect the intake and discharge tunnels to the ocean.
Construction commenced on both in April 2007.
The paper describes the key design criteria for the risers, the construction
constraints that influenced the design and the design of the main elements of
the risers and the connections to the tunnels.