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 and a width of 4.68 metres (15 feet 4 inches); it is lined with concrete with a minimum thickness of 38 cm (15 inches) inside the face of the excavation. When the tunnel holed through on 20 April 1954 the surveying error was found to be only 44.5 mm (1.75 inches). The tunnel was planned to reduce the distance between Upper Hutt and Featherston from to . After its completion, a 2.74 metre (9 ft) diameter vertical ventilation shaft was driven up from a point almost halfway through the tunnel. It reaches the surface beside the Remutaka Rail Trail near