Omāroro will provide critical additional bulk water storage for Wellington’s central business district area and low-lying suburbs to improve operational and disaster resilience.

Omāroro involves constructing:

  • a 35 million litre buried concrete reservoir in Prince of Wales Park in the Town Belt
  • connecting it to the existing water supply with a supporting new pipeline corridor along Wallace Street
  • renewing of local water supplies, stormwater pipes and wastewater pipes in the area

What's happening now? 

Omāroro Pipelines Project

Work started in June 2019 on the Omāroro Pipeline Project, constructing the new pipeline corridor along Wallace Street that will connect the reservoir to the existing water supply, as well as renewing local drinking water, stormwater and wastewater pipes in the area. Some phone, fibre and electricity cables are also being replaced.

Due to the nature of the work, it is disruptive to local residents and to traffic, though pedestrians will have safe access throughout. We are working closely with impacted residents to minimise these impacts and are providing ongoing traffic management throughout the project. The work is expected to be completed by mid-to late 2020.

The scheduled programme of works to date:

  • Hargreaves Street: June to November 2019 - Local water main renewals and beginning of bulk water main installation
  • Wallace Street: August to December 2019 - Local water main renewals, moving south from Rolleston St, beginning installation of bulk water main
  • Wallace Street: November 2019 to February 2020 - Installation of bulk water main will continue along Wallace Street from  Finlay Street to Howard Street
  • Howard Street: March to April 2020 - Installation of bulk water main down Howard Street where it will be capped and later connected to the existing main in Tasman Street
  • Wallace Street: May/June estimated 2020 - completion of local water main renewals.

For the latest news and updates on the project see news

For enquiries or if you want to contact the contractor, see contact 

Why resilience?

It’s important for a city to have enough water stored to allow for at least two days’ normal use and to enable repairs, maintenance and upgrades to be done without disrupting supply.

That’s called operational resilience and right now our city’s storage capacity is not up to scratch.

The city’s water supply network is also vulnerable. Underground pipes and reservoirs could be badly damaged in a significant earthquake and as a result some suburbs could be without drinking water for more than 100 days.

Our resilience programme

Omāroro is part of Wellington Water’s ongoing work to improve the resilience of the region’s water supply network and increase water storage in case of a disaster.

Over the last two years, we have established a new above ground emergency water network that will supply more than 400,000 people across Wellington from day eight following a disaster.

It’s important to remember that following a major earthquake, the first thing people rely on is themselves and their families, so storing water is a must for every household.

You should have 20 litres of stored water for every person, every day, for at least seven days.

Find out more about our water resilience programme.

Have a look at what it will look like

Before, during and 5 years after