Te Maunga Wastewater Treatment Plant – Final Effluent Line and Bypass Pipeline

Deliver, but don’t disrupt – that was the challenge when we were brought in to install a new effluent pipeline at the Te Maunga Wastewater Treatment Plant in Tauranga.

The catch – the existing line couldn’t be shut down. Every cutover had to be completed under tight timeframes using technical overpumping operations to keep the system flowing.

We worked closely with Tauranga City Council to deliver a smarter, safer solution, offering cost-effective alternatives and drawing on our local knowledge to complete the job without a single disruption or incident. The work included installing 1,200 metres of new PE pipeline, removing and disposing of 650 metres of existing pipe (including asbestos cement), and building 400 metres of timber retaining wall. We also relocated 1,200 metres of 11kV cable and other services, and reinstated the road with new pavement, kerb and channel, and surfacing.

This was a true partnership. By collaborating with our client and understanding the network, risks, and community needs, we refined our methodology to reduce impacts on nearby sand dunes and minimise noise, vibration, and settlement risks. Along the way,

Several of our crew achieved CCNZ Civil Trade Certification while delivering this mahi, building their careers as well as a lasting asset for the Tauranga community.