Kakahi was a station on the North Island Main Trunk line, in the Ruapehu District of New Zealand, serving Kakahi. It formally opened on 9 November 1908. The rails were laid south of Piriaka by May 1904 and a daily ballast train was running by October, which also carried passengers. Kakahi Bridge has five spans of 44 ft (13 m) and one of 23 ft (7.0 m) supplied by G. Fraser & Sons of Auckland, which delayed construction to the south. It crosses the Kakahi Stream, which was sometimes called the Waitea River.