Maymorn railway station Maymorn railway station Maymorn railway station is a twin platform, rural railway station serving the small settlement of Maymorn on the Maymorn Plateau, east of Upper Hutt, in New Zealand’s North Island. It is served by the Wairarapa Connection, and sees five services each way Monday to Thursday, six on Friday and two on Saturday and Sunday. This station was initially known as Mangaroa and received its present name on 26 January 1959. This station officially opened on 3 November 1955 along with the Rimutaka Deviation and Rimutaka Tunnel, and the original Mangaroa railway station was closed. The ground on
Rimutaka Tunnel cutting for the new formation completed and the remainder of the track laid. On Thursday, 3 November, the new line was opened and two special trains travelled from Wellington to Speedy’s Crossing to the inauguration ceremony. The deviation's ruling grade is 1 in 70, compensated for curvature. The tightest curve is 400 metres (20 chain) radius. The tunnel rises at 1 in 400 from the western portal to the highest point on the deviation, roughly halfway through the tunnel, and then descends to the eastern portal at 1 in 180. It has an internal height of 5.18 metres (17 ft)