Hūnua 4 watermain

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

Start-finish: 2012-2020 (section 11: November 2018 - 2020)
Location: From Manukau to Khyber Pass, undertaken in 11 sections. Section 11: Market Road to Khyber Pass.
Status: Sections one to 10 have been constructed and are in use. Section 11 is in construction. 

What’s happening?

Starting in 2012, we have been installing a new water pipeline called Hunua 4 that runs from Redoubt Road in Manukau City and will finish at Khyber Pass in the central city, at a cost of $400 million.

The pipe is now in service up to Market Road, Epsom. We  will start construction of the final section of the Hunua 4 watermain (section 11) from Market Road to the Khyber Pass Reservoirs in November 2018 and it will be completed in 2020. The completion of the new watermain will ensure that we can continue to provide uninterrupted, high-quality water as Auckland grows.

Map showing the route of the Hunua 4 pipeline.

Tunnelling progress

Take a virtual tour of the section 11 sites.
See the photo gallery.

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:

More information

Hūnua 4 section 11 flyer