Mangaroa railway station war. After the war the depot was a disposal site for surplus stores until RNZAF use ceased in July 1949, at which time it is assumed that the site was transferred to the NZ Army for their use. Prior to the construction of the Rimutaka Tunnel, several proposals for a tunnel under the Rimutaka Ranges to bypass the Incline section involved tunnels with a western portal to the north-east of Mangaroa station. In 1898 a survey was completed for a tunnel between Mangaroa and Cross Creek. The idea received a great deal of attention, but ultimately went nowhere as such
Yimbun Railway Tunnel cuttings that form the approaches on the north and south sides of the tunnel extend for approximately and approximately respectively. Yimbun Railway Tunnel was listed on the Queensland Heritage Register on 27 November 2008 having satisfied the following criteria. The place is important in demonstrating the evolution or pattern of Queensland's history. The Yimbun Railway Tunnel is important surviving evidence of the Brisbane Valley Branch Rail Line. Development of Queensland's branch rail network, which began in the 1880s, was vital for the development of the colony through opening land for closer settlement and freighting produce and resources to Queensland's major