Huia 1 watermain upgrade

Project overview

We are renewing the large-diameter watermain called Huia No.1 which has reached the end of its useful life. The watermain was built in the 1940s after World War II. To extend its life we rehabilitated the watermain in the 1980s but we now need to build a new pipe. Over the next few years, the 15,556 metre pipe is being built in sections across West and Central Auckland.

Please refer to the overall site map to show the completed sections of works and our current construction areas.

Current works

Connection works delayed

While we have finished laying the watermain, we still have to connect the pipe to the existing network.

The connection works have been delayed by approximately one month as the 3.4-kilometre section of pipe from Heaphy Street in Blockhouse Bay to Marion Avenue, Mt Roskill has not met our disinfection standards. This means approximately an extra three weeks of re-disinfecting, flushing and testing the line until it meets our stringent quality standards.

While you may not see much physical work happening on the three connection sites (Heaphy Street, White Swan Road and Marion Avenue), we have staff working 24 hours a day flushing and treating the new pipeline. This also includes testing every second day at 23 locations along the pipeline route to make sure we maintain our quality standards.

The good news is that we will have finished these works including our final connection works by late May/early June.

Heaphy Street connection works

We will be doing our final connection works on Heaphy Street on 30 April 2025. Once we do our final connection works, we will need to carry out final reinstatement works which are estimated to take a further two weeks. Traffic management will remain in place as per its current setup (near the entry of Heaphy Street).

White Swan Road connection works

We will also be doing our final connection works at 209-213 White Swan Road on 14 May. Once we do our final connection works, we will need to carry out our final reinstatement works which are estimated to take a further two weeks. Traffic management will remain in place. We realise that these works have been disruptive, and we would like to thank the community for their patience while we have undertaken this important section of works.

How will this work affect you?

Work hours

• From 7am to 6.30pm, Monday to Friday and 7am to 4pm on Saturday including some statutory holidays.

Water supply not impacted

• Your water supply will not be impacted by these works.