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A tale of two bridges – steel plates for SH25A bridge beams taken from Tauranga project

Steel plates purchased for the Minden bridge on a Tauranga project have taken a detour to a new destination – the State Highway 25A bridge build in the Coromandel.

Waka Kotahi NZ Transport Agency regional manager of infrastructure delivery Jo Wilton said the urgency of the Kōpū-Hikuai Rd project meant the Waka Kotahi Coromandel team had to take a dynamic approach to reconnecting both sides of the Peninsula. 

The problem: how to quickly construct a 124 metre, three-span bridge with the expectation that the road will be open to traffic by March, 2024.

This is where Tauranga’s Takitimu North Link project came into the picture, with Waka Kotahi agreeing to redirect the steel plates purchased for one of the Minden Road bridges to fabricate the beams for the SH25A bridge instead.

“These plates weren’t due to be fabricated into beams for installation at the Minden site until a next year so were able to be repurposed for SH25A and still replaced in time to meet their revised programme,” she said.

“The bridges on both projects are designed with steel beams of a very similar profile. There are slight dimensional differences however the steel thicknesses are equal for the most part. 

“It is a great example of collaboration and prioritisation to support those communities with the greatest need in a timely way. And frankly, the SH25A bridge wouldn’t be getting built this quickly as it is without this kind of thinking.”