Project overview
We’re installing underground buffer tanks near the traffic lights on Wairakei Drive to help protect our wastewater network and local waterways.
The tanks are designed to temporarily store surges in wastewater and stormwater when the network is under pressure during heavy rain. The tanks will then release flows gradually to the wastewater treatment plant which helps to reduce the risk of wastewater overflows. As the population north of Control Gates bridge continues to grow, this project adds further resilience to our wastewater network.
Two tanks are being installed six metres below ground and will hold around 300 cubic metres of wastewater during peak flows. Once the work is complete, the tanks will be virtually invisible. While these buffer tanks will be the first to be installed in the Taupō District, they are being used successfully in Auckland, Hamilton, Wellington and other parts of New Zealand.
Our contractor MAP Projects is getting started on installing the buffer tanks in July. The project, which is being done in partnership with local hapū and marae, is expected to wrap up at the end of October.
| Location:
| Nukuhau, Taupō
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| Project status:
| In progress
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| Contractor:
| MAP Projects
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| Start date:
| July 2026
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| Completion date:
| October 2026
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