Wastewater

Central Interceptor

A 15-kilometre gravity trunk sewer and pump station network reducing overflows across central Auckland.

Integrated trunk sewer, shafts and pump stations delivered through a live metropolitan catchment.

Design, construction management and commissioning support for one of the largest wastewater conveyance programmes in the Southern Hemisphere, with real-time overflow-reduction monitoring.

Scope of work

  • Tunnels & Underground Engineering
  • Construction Management
  • Geotechnical Engineering
Central Interceptor — Auckland, New Zealand
Central Interceptor, Auckland, New Zealand. Hoffman Tunnels provided tunnel and underground design, engineering and construction-phase support.

Project facts

Length
15 km
Type
Gravity trunk
Pump stations
3
Completion
2022
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