NZ InfraWatch
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WATER
Nelson Tasman Regional Water
Nelson City Council / Tasman District Council · Nelson
Regional water resilience for Nelson and Tasman after the 2021-2022 restrictions. The Waimea Community Dam was commissioned in September 2024. The rest is council upgrades delivered through long-term plans rather than one defined scheme, and the $450m sometimes quoted is indicative only.
50
Breakdown▾
Mixed signals Data: Medium
Delivery Confidence Score, 0 to 100, higher is better: a ranking of how strong this project's delivery signals are, not a probability. It blends eight factors, including the election risk and policy alignment shown below.
Each axis is a scoring factor (0 to 100)
Data current as at 16 Sept 2026, when the pipeline was last checked against its source.
Key facts
- Region
- Nelson
- Sector
- Water
- Status
- Planning
- Estimated value
- Value TBC
- Indicative completion
- 2030
- Funding status
- No Source
- Lead organisation
- Nelson City Council / Tasman District Council
- Election risk
- Medium
Election risk assessment
Depends on Local Water Done Well framework. Contested between National and Labour policy approaches.
Government priority alignment
MEDIUM: Depends on the Local Water Done Well framework; funding model contested.
Chronology
- 2021Severe water restrictions across Nelson-Tasman expose supply fragility
- 2023Waimea Community Dam construction progresses as the anchor resilience project
- 2024Waimea Community Dam completed and commissioned (September)
- 2030expectedIndicative horizon for the remaining wastewater and drinking-water upgrades