Brigham Creek Roundabout Improvements Detailed Design (RFT)

Overview NZ Transport Agency Waka Kotahi (NZTA) invites tenders from suitably qualified consultants for the SH16 Brigham Creek Roundabout Improvements Detailed Design contract. The procurement forms part of the Auckland Network Optimisation Programme and supports improvements at the SH16 / Brigham Creek Road / Fred Taylor Drive intersection in northwest Auckland. Purpose The existing intersection is experiencing increasing congestion and operational constraints. This project seeks to progress a signalised roundabout solution that will improve operational performance, increase intersection capacity, support forecast growth in travel demand, and integrate with the future SH16 Brigham Creek to Waimauku Stage 2 project. Scope NZTA is seeking a consultant team to develop the current concept design into a coordinated, consentable and constructable detailed design package. The resulting technical package will be incorporated into the future SH16 Brigham Creek to Waimauku Stage 2 physical works procurement. The scope includes: Investigations Detailed design Coordination Statutory approvals Technical specifications Tender documentation Associated technical support required to prepare the project for future implementation Working closely with NZTA and other specialist providers engaged separately by NZTA, including traffic modelling, traffic signal phasing, cost estimation, quantitative risk assessment and implementation programme development Coordinating with the SH16 Brigham Creek to Waimauku Stage 2 project team, the Brigham Creek Rarawaru Station project team, and other project interfaces Contractor Requirements A particular focus of this procurement is the successful delivery of a complex signalised roundabout design within a live state highway environment. Demonstrated experience in signalised roundabout design Demonstrated experience in state highway design Demonstrated experience in statutory approvals Demonstrated experience in utility coordination Demonstrated experience in construction-ready documentation International experience with signalised roundabouts is encouraged Tender Briefing A Group Inception Meeting will be held for this opportunity. Date: Thursday, 29 October 2026 Time: 10am Instructions to Tenderers NZTA has a DataRoom with supporting technical information available on request.