Keidges Road Reservoir

About the project

As part of QUU’s Water Netserv Plan, Pensar completed the rehabilitation of two reservoirs at Keidges Rd, Augustine Heights. The works included a roof replacement and the repair of significant leaks to improve the water supply to the surrounding community.

Key Capabilities

Reservoir construction & refurbishment works, Application of specialist coatings, Joint systems and sealing

Project Location

Brisbane, Queensland

Client Name

Queensland Urban Utilities

Project Duration

August 2019 - March 2020

Project scope

  • Removal and replacement of the roof and associated steelworks
  • Design, supply and install of access platform, perimeter handrails, davit, internal ladder, staircase
  • Removal of internal liner and geofabric and the polyurea type bandage
  • Reservoir cleaning and sediment disposal
  • Rehabilitation of concrete, wall to ring beam joint, floor joints and internal reservoir steel components
  • Installation of a flexible bandage seal
  • Replacement of all pipework within the inlet valve pit
  • All electrical works required to demolish and recommission reservoir roof
  • Modifications to existing control systems code in order to commission the new reservoir instrumentation
  • Removal of the sealant to the floor and wall joints and replaced using a monolithic polyurea membrane to improve water tightness
  • Installation of a ridge ventilator and perimeter ventilators
  • Installation of new scour pit cover
  • Design and installation of a new actuator to the inlet line

Challenges

  • The project was highly time sensitive with pressures from community members and local council
  • The roof on reservoir R79 was deemed structurally unsound and required replacing but was not safe to access

Achievements

  • A successful working relationship was established with the client which resulted in the award of additional reservoir works in addition to the original contract
  • The demolition of the R79 roof was conducted via an EWP, which was lifted onto the reservoir to ensure no one was required to walk on the unsafe surface
  • Recycling opportunities were identified with both environmental and commercial benefits
  • Pensar designed an aluminium and stainless steel roof supporting structure that exceeded the design life required by the client