NZ InfraWatch
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WATER
Auckland Watercare — Water Supply Upgrades
Watercare Services (Auckland Council) · Auckland
Watercare's 10-year capital programme including new water treatment capacity, trunk main replacements, wastewater upgrades, and the Huia WTP upgrade. Funded through water rates. Auckland faces water supply constraints as population grows to 2M+.
A
91/100 · Very likely to proceed
Completion Probability — likelihood this proceeds on roughly its stated timeline.
Funding statusweight 30%
Delivery stageweight 25%
Election / policy riskweight 20%
Govt priority alignmentweight 12%
Project scaleweight 8%
Delivery agencyweight 5%
Key facts
- Region
- Auckland
- Sector
- Water
- Status
- Under Construction
- Estimated value
- $2.1b
- Indicative completion
- 2031
- Funding status
- Fully Funded
- Lead organisation
- Watercare Services (Auckland Council)
- Election risk
- Safe
Election risk assessment
CCO-funded water supply infrastructure — largely insulated from government policy change.
Government priority alignment
MEDIUM — Aligns with locally led water delivery under Local Water Done Well; CCO-funded.
Chronology
- 2020Watercare 30-year strategy released — identifies $17B investment need over 30 years
- 2022Huia Water Treatment Plant Stage 2 upgrade begins construction
- 2023Major trunk main renewal programme underway across Auckland network
- 2025Rosedale wastewater plant upgrade completed. New Pukekohe reservoir commissioned
- 2028Southern water supply network upgrades complete
- 2031Current capital programme target