Ōtaki Wastewater Gravity Main - Stage 2 Trenchless Section

Details

RFx ID :	33001989
Tender Name :	Ōtaki Wastewater Gravity Main - Stage 2 Trenchless Section
Reference # :	2025-C809
Open Date :	Friday, 14 November 2025 1:30 PM (Pacific/Auckland UTC+13:00)
Close Date  :	Monday, 8 December 2025 12:00 PM (Pacific/Auckland UTC+13:00)
Tender Type :	Request for Tenders (RFT)
Tender Coverage :	Sole Agency  [?]
Categories :	83101500 - Water and sewer utilities
Regions:	Wellington
Exemption Reason :	None
Required Pre-qualifications :	None
Contact :	Chris Pearce chris.pearce@kapiticoast.govt.nz
Alternate Physical Delivery Address  :
Alternate Physical Fax Number  :

The Kāpiti Coast District Council invites tenders for the construction of Stage 2 of the Ōtaki Wastewater Gravity Main.
This stage involves trenchless installation of a DN400 gravity wastewater pipeline beneath the North Island Main Trunk rail line and the SH1 Ōtaki Expressway, using micro-tunnelling or pipe-jacking methods.
The works include associated connections, manholes, and reinstatement, and form part of a multi-stage upgrade to improve network resilience and capacity.

This is a single-stage procurement process under NZS 3910:2013 (with special conditions). Tenderers must demonstrate relevant experience in trenchless construction and compliance with KiwiRail and NZTA requirements.

The anticipated start date is January 2026, with a contract duration of approximately three months.