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
Woodville railway station, Manawatu-Wanganui and on 17 November it was decided instead to replace the station. In legislation and Hansard the proposed Woodville balloon loop was referred to as the 'Woodville Connection'. It was approved by the Finance Act of 1957 and the written description of the line was as follows; A connecting line leaving the Wellington to Woodville Railway near the Manga-atua Stream and running in a westerly direction to a junction with the Palmerston North to Napier Railway at McLean Street. Length about 1¼ miles. From the debate it is clear the loop was proposed due to the completion of Rimutaka Tunnel,