Takapū Road Watermain Renewal
If you have any questions about this work, please contact:
Wellington Water, 04 912 4400
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Delivered under the Urgent Works stream as part of our Capital Delivery Programme, our internal Major Pipelines, Operations, and Design teams have been working collaboratively to unearth sections of the bulk water main (that is, the big pipes) which carries drinking water from Te Mārua Treatment Plant in Upper Hutt to Porirua City and the western suburbs of Wellington City.
On behalf of Greater Wellington, we are renewing and repairing the bulk drinking water pipe which supplies the northern and western suburbs of Wellington.
Wellington Water, on behalf of Greater Wellington Regional Council, is repairing and replacing sections of a major drinking water pipeline which runs through Takapū Valley, crossing the stream at several points. This pipeline is a critical asset which supplies drinking water from Te Mārua Treatment Plant to the northern and western suburbs of Wellington.
This project involves:
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Excavating around several sections of pipe, applying a new coating to protect them from corrosion, then re-burying them
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Constructing a new section of pipe away from the streambed, to reduce the number of crossing points
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Adding riprap where the pipe crosses the stream to prevent future erosion and support native fish
The project is expected to be completed by May.
Due to erosion in the stream bed, several sections of pipe have become exposed, and are at risk of corrosion and damage, which creates a risk of water outages and damage to Takapū Stream.
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Ever wondered how your water gets from the treatment plant to your tap? Through very big pipes, of course! And sometimes they need a bit of TLC.
Delivered under the Urgent Works stream as part of our Capital Delivery Programme, our internal Major Pipelines, Operations, and Design teams have been working collaboratively to unearth sections of the bulk water main (that is, the big pipes) which carries drinking water from Te Mārua Treatment Plant in Upper Hutt to Porirua City and the western suburbs of Wellington City.
The 1950s bitumen-coated steel watermain runs along the bottom of Takapū Valley and crosses paths with Takapū Stream at several points. Natural migration of the stream has exposed some sections of the pipe and degraded the condition of the coat in several locations, putting Wellington’s water supply at risk.
Our team are working to repair several sections by digging them out and re-wrapping them with a corrosion-resistant wrap tape, and a protective PE cap, before burying them again. The repair, and safe passage of the native fish and eel population, is supported by reinstating the streambed and banks with erosion protection concrete blocks and rock rip rap.
We’re planning for the future and protecting te taiao at the same time.
Exposed pipe on Takapū Road, Tawa
Re-wrapped pipe on Takapū Road, Tawa
Pipe surrounded by newly laid gravel on Takapū Road.