Beams Road No. 3 Pump Station

About the project

To remove the risk of overflow, Pensar was engaged to construct and commission a gravity main to replace the existing pump system.


Carseldine, Queensland

Client & Duration

Urban Utilities
April 2018 - November 2018

Project Scope

  • Installation of 250m of gravity sewer between the existing pump station and new maintenance holes
  • Installation (via open trench) of 40m of new gravity sewer in Pat Rafter Park to connect to an existing maintenance hole
  • Installation of a sewer maintenance hole at the Beams Rd/Wimbledon Circuit intersection
  • Decommissioning and demolition of the existing pump station
  • Decommissioning of the 680m of existing rising main
  • Protection, rehabilitation and remediation of construction areas


  • The system had to remain live throughout
  • An adjacent creek had to be protected from discharge and run-off
  • Specific permits were needed to facilitate works within the Pat Rafter Park environment
  • Limited on-site construction space, meant tunnel boring was difficult
  • Traffic control along Beams Rd presented a major risk
  • Implementation of a by-pass to the pump station with 24-hour monitoring
  • Deep excavations and confined space working conditions


  • Bi-directional traffic flow was maintained by relocating a traffic island
  • Enabled safe and efficient construction and installation of the GRP manhole, and interconnection of carrier pipes, by constructing a large temporary caisson
  • Saved a large fig and other native trees by using tunnel boring rather than open excavation
  • No lost time injuries whilst working in a high risk environment
  • Completed the project ahead of schedule and on budget

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