Manukau harbour crossing is a replacement to an existing former road bridge now used by pedestrians and fishermen over the Manukau Harbour in Auckland.
The aim of the design was to create a simple but beautiful trajectory with the deck curving three dimensionally over the water. The deck provides a simple walkway for pedestrians with areas dedicated for fishermen.
The curving alignment of the deck is generated from a single arc spanning between the northern and southern approaches of the bridge on either side of the harbour.
The hydro-dynamically shaped piers were spaced uniformily at 14 metre intervals. The spans were then connected with arches and a folded barrier edge to create a sculpted stereotomic effect and a strong horizontal line across the length of the bridge.
Due to the simple arc form of the deck the concrete structure is highly modular with each span being identical in form.