Tītahi Bay Trunk Water Main Renewal
On behalf of Porirua City Council, we are replacing the aging water main that carries drinking water to Titahi Bay.
If you have any questions about this work, please contact:
Tiaki Wai, 0800 TIAKI WAI (0800 842 549)
Latest Updates
As part of testing the new Titahi Bay water pipe, our team needs to do some additional works starting from Tuesday 10 September.
On Monday and Tuesday August 26 and 27 there’ll be some temporary speed restrictions on Titahi Bay Road near the Elsdon Park Hockey Turf, while we do more work on the new Titahi Bay water main under the road.
Stage 1 works
We have completed Stage 1 with the installation of a 1.3km long polyethylene pipe. This new pipe has been realigned, running from Elsdon Park and connecting into the existing network at Whanga Crescent Pump Station.
Stage 2 works - due to start
Starts from the connection point of Stage 1 (blue line), where it will progress up the walkway to Puaha Street and Mataiwhetu Street, before crossing into Hukarito Valley and connecting into Whanga Crescent.
Why are we doing this?
The purpose of this project is to provide a reliable and resilient water supply link to the residents of Titahi Bay.
The existing Titahi Bay trunk water main is asbestos cement and laid in 1963. It is the sole water supply to the Titahi Bay area. It has previously burst and is seismically vulnerable due to the condition of the pipe, pipe material and ground conditions.
Overview of the Titahi Bay Trunkmain Renewal Project
All Updates
Stage 2 is expected to start Spring 2026.
We expect this work to take around two weeks to complete.
It will involve closing sections of the cycle lanes. During the first week, the southbound cycle lane on Titahi Bay Road at the intersection turning left into Wi Neera Drive will be closed. Then the northbound lane out of Te Hiko Street for the second week.
We really appreciate your patience while we do this essential long-term work.
On Monday and Tuesday August 26 and 27 there’ll be some temporary speed restrictions on Titahi Bay Road near the Elsdon Park Hockey Turf, while we do more work on the new Titahi Bay water main under the road.
Titahi Bay Road will remain open in both directions.
We’ll be operating what’s called a contraflow, a temporary traffic arrangement where lanes are ‘shifted over’ – we’ll be working in the middle of the road with lanes on both sides.
Thank you for your patience while we do this essential long-term work.
Our crews have now finished laying the new main pipe under Titahi Bay Road near the Elsdon Park hockey turf. For the past three weeks there have been speed restrictions while we operated what’s called a contraflow, a temporary traffic arrangement where traffic travelling in both directions use lanes on one side of the road; effectively we shifted the lanes over to one side while we worked on the other side.
We appreciate everyone’s patience with these short-term disruptions while we make long-term improvements.
Our crews have completed the important stage of laying the new main pipe under the road at the intersection with Te Hiko Street.
Big shout out to the Wellington Pipelines and Traffic Management crews who have been working overnights since 4 June to get this section complete without further disrupting traffic during the day.
There’s still more work to do but we’re due to finish work under and alongside Titahi Bay Road in August.
Thanks for your patience as we complete this important work on the pipes to secure the vital supply of drinking water to Titahi Bay.
Working from both the north and the south, we have so far laid 760 metres of pipeline, out of a total of 880 metres for stage 1.
We’re close to completing work along Tangere Drive and are now approaching the milestone of crossing Titahi Bay Road, laying the new main pipe under the road at the intersection with Te Hiko Street.
From Tuesday 4 June for approximately three weeks crews will be working overnight on this section, to avoid disrupting traffic during the day.
This means from 7 pm to 5.30 am there will be stop/go traffic control and you should expect delays.
During the day the road will be open, with trench covers over the excavations. There will be speed restrictions and traffic management around the worksites.
Tangare Drive excavation
Titahi Bay pipes
We’re making good progress on replacing the Titahi Bay water main, which will secure and future proof the delivery of safe drinking water for the entire Titahi Bay Peninsula. The works are progressing from two sites, one from Tangare drive and one from Titahi bay road and will ‘meet in the middle’. This approach allows for a much faster project to minimise the window of disruption to residents and local businesses. Work started in January and is making good progress from both ends.
Our contractors Wellington Pipelines are working hard to provide vehicle and pedestrian access, with alternate access for foot traffic and plans in place to allow wheelchair or stroller users safe transit.
