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
Rimutaka Incline closed. The smoke, the noise, the mad sooty passengers with open windows - this is what it was like to go up the Rimutaka Incline — and then there were the tunnels . . . Several options for an alternative to the Incline were considered in the 20th century, but it was not until after WWII that a route through a tunnel between Maymorn and Lucena's Creek was selected. Construction was started in 1948 by the Public Works Department and completed by a private contractor in 1955. The tunnel and deviation opened on 3 November 1955, five days after the