Silverstream Overflow Storage Facility
  • 1
  • 2
  • 3
  • 4
Client: Hutt City Council
Sector: Foundations
Location: Hutt City
Contract Value: NZ $6.8 million
Completed: Jul 2006
Main Contractor: Brian Perry Civil


The contract included:

  • Construction and commissioning of a reinforced concrete storage tank with 10,000 cubic metre capacity.
  • Construction of wet well pump station.
  • Modifications to existing manhole chamber and rain gauging station.
  • Supply and installation of stop logs and electrically activated valves.
  • Supply and installation of ventilation fans and vacuum relief to balance out foul air and tank emptying pressures.
  • Supply and installation of an overflow screen to screen solids from the wastewater.
  • Supply and installation of pipes and fittings including GRP pipe, control valves, isolation valves, submersible pumps, flow meters, level and pressure sensors, telemetry and controls.