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Bribie Island STP – Clarifier Upgrade


This design and construction contract of the new secondary clarifier at the Bribie Island Sewerage Treatment plant.

The project involved:

  • Demolition and removal of an existing clarifier which had floated during maintenance,
  • Construction of the replacement clarifer which included extensive dewatering and piles to hold down the new structure.

The scope also included:

  • Refurbishment of clarifers 2 and 3,
  • New balance tanks and pump stations
  • New roadworks, electrical works, control systems and commissioning of the plant.


Client Unity Water
Project location Bribie Island, Queensland
Contract system Design & Construct
Contract sum $5.2 Million
Completion date September 2014
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