Mangaroa railway station noticeable hump in Flux Road just before the T-intersection with Leonards Road, the site of a level crossing just before the station. Of the station itself only the loading bank remains, at the side of Flux Road. Mangaroa railway station Mangaroa railway station was a single-platform rural railway station on the Wairarapa Line between Upper Hutt and Featherston in the Wellington region of New Zealand’s North Island, on the section that was replaced by the Rimutaka Tunnel deviation in 1955. It served the small rural settlement of Mangaroa, in the Mangaroa Valley, east of Upper Hutt. Mangaroa station was not
Rimutaka Tunnel five-span 91 metres (300 ft) bridge across the Mangaroa River and two underpasses near Maoribank. There is a tunnel of 539 metres (1767 ft) near Maoribank, but on the eastern side where two short tunnels (220 metres (11 chain) and 180 metres (9 chain)) had been proposed through a spur it was cheaper to lengthen the line by 140 metres (7 chain) and have open cuttings. The construction of the Rimutaka Tunnel consumed: The first locomotives to work through the tunnel were the 560 kW DG class - the tunnel was too long for steam locomotives, making the Wairarapa Line