HUNUA 4 WATERMAIN

The new watermain stretching from Manukau to Epsom is helping meet the needs of a growing Auckland.

Supplying 120 million litres a day

48 Olympic swimming pools

PROJECT VALUE

$380 million

PROJECT TYPE

MAJOR INFRASTRUCTURE

Who's on the team?

  • Project manager
  • Civil engineer
  • Mechanical engineer
  • Structural engineer
  • Quantity surveyor
  • Surveyor
  • Traffic manager
  • Traffic controller
  • Environmental manager
  • Health and safety manager
  • Stakeholder liaison
  • Site supervisor
  • Construction manager
  • Consents planners
     
  • Contaminated land specialist
  • Geotechnical engineer
  • Excavator operator
  • Truck driver
  • Labourer
  • Spotter
  • Foreman
  • Bricklayers
  • Carpenter
  • Grader operator
  • Asphalt crew
  • Line marker
  • Kerb layer
     

Project snapshot

 

What: The watermain will carry treated water 32km from reservoirs in Manukau to Khyber Pass. Along the way, it will connect with supply networks in urban Manukau and central Auckland. For the majority of the route, the pipe will be buried under roading by open trenching, but a tunnel boring machine is used for getting under busy roads.
 
Where: From Manukau Heights to Khyber Pass

When: 2012 -2017

Companies: Fulton Hogan & John Holland Joint Venture, Beca, GHD, Watercare

  • Crosses Manukau Harbour, 3 motorways, 3 railway lines, 1 creek and 8 streams

  • 32 km long

  • 1.6m – 1.9m diameter

  • Up to 5m deep

  • Will supply 120 million litres a day, equal to 48 Olympic swimming pools a day 

  • 100 years+ estimated lifetime 

  • It will double the capacity of the existing watermain