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 significant as a highly intact example of a concrete-lined railway tunnel constructed for Queensland's narrow-gauge railway lines. Concrete was first used as a tunnel lining in 1880 and since then has been used for approximately two dozen railway tunnels constructed in Queensland. Yimbun Railway Tunnel Yimbun Railway Tunnel is a heritage-listed tunnel at Sinnamons Lane, Harlin, Somerset Region, Queensland, Australia. It was designed by Queensland Railways and built from 1909 to 1910 by Queensland Railways. It was added to the Queensland Heritage Register on 27 November 2008. The Yimbun Railway Tunnel, located from Wulkuraka railway station, is a concrete-lined tunnel