Project Start Date

January 2014

Project Completion Date

April 2015


South East Water

Comdain's Role

Principal Contractor




Distribution Infrastructure

Electrical, Mechanical & Instrumentation

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Design and construction (D&C) of a 10 megalitre (ML) welded steel recycled water tank including inlet pipeworks and outlet main. Scope also included all electrical and control works including integration with existing client SCADA system.

Works Undertaken

  • Cultural Heritage investigation prior to commencement of works.
  • D&C of 10ML welded steel recycled water tank.
  • Construction of DN750 MSCL watermain – 660m by open cut trenching (up to 4m deep) and 90m by microtunnelling / bed bore with a 1050mm steel sleeve installed under the South Gippsland Highway.
  • Construction of DN450 MSCL inlet watermain.
  • Construction of 400m gravity drainage pipework (inc. pits and manholes).
  • Installation of 3 no. flowmeters, 3 no. electrically actuated valves, level and pressure switches.
  • Development of control philosophy and integration of two SCADA systems.

Highlights & Innovations

  • Due to restricted space onsite, the tank was built from the inside with the entrance welded into place last, to mitigate against potential confined space issues.
  • Large diameter bore beneath arterial route completed with no disruption to traffic and on alignment.
  • Designed to connect all overflow and site drainage to the recycled water lagoon (no wastage of surface run off) to irrigate the racecourse.
  • All works meticulously planned to ensure no disruption was caused to horse and greyhound’s daily training routines.