Here’s a piece that Stacy Vallis & I wrote about the Kopu Bridge near Thames. It’s a 90-year-old swing-span bridge, quite lovely. Management of the bridge has recently been handed over to a community group who are going to open it up to walkers and cyclists.
Our source material for the article included some really interesting articles from Heritage NZ and Engineering New Zealand (formerly IPENZ). From an engineering perspective, I particularly enjoyed reading the 1930 article by AJ Baker on the construction of the bridge. It’s linked through from the bottom of the ENZ page.