Tangiwai was a station on the North Island Main Trunk line,[1] in the Ruapehu District of New Zealand.

[7] An 1897 report noted ballast available at Waitangi and a temporary line opened to carry it and other building materials along the route by 1907.

[9] George Syme's sawmill was linked to the station by a 1+1⁄4 mi (2.0 km) tramway[10] from 1908[5] until 1930.

[11] It was worked by an A Class 0-4-0 shunter until about 1928[12] and then an 1870s vertical boilered 0-4-0, built in Auckland by Fraser & Tinne.

[5] In 1979 by Karioi Pulp Mill, almost 3 km (1.9 mi) north of the sawmill,[16] began production, using rail from the start.

However, the station closed to all traffic on 13 October 1986,[5] so that by 2009 the sidings were disused and up to 3,000 trucks a year carried the timber to Wellington.

[25] A Silver Fern railcar, RM 18, collided with a stock truck at the SH49 level crossing on 24 January 1989.