31974 (2026). Tangi Utikere to the Minister of Transport

Written Question
Published date: 31 Jul 2026
31974 (2026). Tangi Utikere to the Minister of Transport: How does the New Zealand Transport Agency rank bridges for replacement and what formula, if any, is used?
Hon Chris Bishop: I am advised that NZTA does not maintain a single, national ranking of all state highway bridges for replacement, and there is no single formula that ranks every potential bridge replacement across the network. NZTA regularly inspects and monitors state highway bridges and it maintains an internal programme of candidate structures being considered through the End of Life renewal pathway. More information on how bridge replacements are considered by NZTA is available at: https://www.nzta.govt.nz/assets/planning/business-case-approach/docs/Bridge-replacement-at-end-of-life.pdf