Built in 1904 as part of the North Island Main Trunk (NIMT), the Matapuna Bridge is one of the oldest surviving structures of the final section of this railway, spanning the Whanganui River. The structure also stands as a significant physical testament to Taumarunui's importance as a transportation hub in the first half of the 20th century. Planning for the NIMT began in the 1870s, but it took nearly 40 years to complete the railway. By 1900, public dissatisfaction with the protracted construction prompted the government to invest more resources in a 'last push'. Following Julius Vogel's plan, the construction of this engineering marvel attracted immigrants to New Zealand, many of whom remained in the area after the project's completion, forming the foundation of settlements along the railway and contributing to the growth of towns like Taumarunui and Manunui. Nationally, the NIMT was