The Rakaia Gorge No. 1 Bridge is listed by Heritage New Zealand as a Category 1 Historic Place. The structural form is considered by the Engineering New Zealand Heritage Board to be internationally unique. Deterioration of the fabric required complete restoration. Working closely with the conservation architect the proposed work was designed to mitigate negative impact on the heritage fabric. The project has given a new lease of life and resilience to this unique heritage bridge and preserved its exceptional landmark value.