Hūnua 4 watermain

This 31-kilometre pipeline through Manukau and Auckland cities will meet growing demand and increase resilience.

Start-finish: 2012-2020
Location: From Manukau to Khyber Pass, undertaken in 11 sections
Status: Sections one to 10 have been constructed and are in use. Construction of the final section of the Hūnua 4 watermain, from Market Road to Khyber Pass, is scheduled to start in late 2018.

What’s happening?

We are in the process of installing a large pipeline as part of the water network between Manukau and Khyber Pass.​

Four major pipes carry water from the reservoirs on Redoubt Road in Manukau to many points around Auckland. 

The new pipeline is named after  the Hūnua Ranges – the source of 60 per cent of Auckland’s water.

Map showing the route of the Hunua 4 pipeline.

What are the benefits?

Although the project is temporarily disruptive, it is vital to the future development of our city. The watermain will:

  • ensure that, as demand for water grows, we can continue to provide an uninterrupted, high-quality water supply
  • provide resilience in the event of a natural disaster
  • allow us to maintain our assets without major disruption to the water supply.

We thank all those affected for their understanding during these important works.  

Any questions?

Please contact us:
Email: hunua4@water.co.nz 

View a time lapse of work in Victoria Street, Onehunga:

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