Date: |
27 May 2026, 8.00AM – 9.30AM |
duration: |
1 hr 30 mins |
Venue: |
O Mahurangi – Penlink Main Office |
Address: |
110 Ara Weiti Road Auckland |
Cost: |
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Join the Engineering New Zealand Auckland Branch for a close-up look at the form travellers driving balanced cantilever construction across three key spots of the project, including the Weiti River Bridge. This site tour is a must-see for engineers interested in complex bridge construction, temporary works design and large-scale construction sequencing.
O Mahurangi – Penlink is a major transport infrastructure project delivering a new 7km highway connection between Whangaparāoa Road and State Highway 1 at Redvale. The project is intended to significantly improve access and resilience for the Whangaparāoa Peninsula, which currently relies on a single main route for daily travel, freight movement and emergency services. By providing an alternative connection, Penlink supports future residential growth in the Silverdale and Wainui areas while helping to reduce congestion and improve network reliability across North Auckland.
A central feature of the project is the Wēiti River Bridge, the largest and most complex structure on the alignment. The bridge spans approximately 535 m across the river valley and rises around 45 m above the water, supported by distinctive V‑shaped concrete piers that extend more than 60 m high. Its height, length, and environmentally sensitive setting have driven the use of advanced construction techniques and extensive temporary works.
The bridge deck is being constructed using balanced cantilever methods supported by form travellers, allowing segments to be built progressively from the piers without the need for full falsework in the river. In addition to carrying two traffic lanes, the bridge includes a shared walking and cycling path and provision for key utilities, underscoring its long‑term, multi‑functional role in Auckland’s transport network.
PPE Required: Hard hat, hi-vis jacket, safety boots, and safety glasses. EiRySafety glasses are required and the safety boots must be lace up steel cap – no slip-on steel capped boots. Also, we are a full wrist to ankle covered site, so must wear long pants and long sleeve shirts.
Spaces are limited for Engineering New Zealand members only. Register quick!
Step onto one of New Zealand’s most ambitious bridge projects and see temporary works in action.
Join the Engineering New Zealand Auckland Branch for a close-up look at the form travellers driving balanced cantilever construction across three key spots of the project, including the Weiti River Bridge. This site tour is a must-see for engineers interested in complex bridge construction, temporary works design and large-scale construction sequencing.
O Mahurangi – Penlink is a major transport infrastructure project delivering a new 7km highway connection between Whangaparāoa Road and State Highway 1 at Redvale. The project is intended to significantly improve access and resilience for the Whangaparāoa Peninsula, which currently relies on a single main route for daily travel, freight movement and emergency services. By providing an alternative connection, Penlink supports future residential growth in the Silverdale and Wainui areas while helping to reduce congestion and improve network reliability across North Auckland.
A central feature of the project is the Wēiti River Bridge, the largest and most complex structure on the alignment. The bridge spans approximately 535 m across the river valley and rises around 45 m above the water, supported by distinctive V‑shaped concrete piers that extend more than 60 m high. Its height, length, and environmentally sensitive setting have driven the use of advanced construction techniques and extensive temporary works.
The bridge deck is being constructed using balanced cantilever methods supported by form travellers, allowing segments to be built progressively from the piers without the need for full falsework in the river. In addition to carrying two traffic lanes, the bridge includes a shared walking and cycling path and provision for key utilities, underscoring its long‑term, multi‑functional role in Auckland’s transport network.
PPE Required: Hard hat, hi-vis jacket, safety boots, and safety glasses. EiRySafety glasses are required and the safety boots must be lace up steel cap – no slip-on steel capped boots. Also, we are a full wrist to ankle covered site, so must wear long pants and long sleeve shirts.
Spaces are limited for Engineering New Zealand members only. Register quick!
Presenters
Auckland Branch
