Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,992 pages of information and 229,205 images on early companies, their products and the people who designed and built them.
Kopu Bridge, originally known as Hauraki Bridge, is a steel and concrete road viaduct crossing the Waihou estuary, near the town of Thames.
It was constructed in 1926-1928. There are 23 steel spans on concrete piers, and a central swinging span 42.7 m long, providing a rare surviving example of a swing span bridge in New Zealand.