Koiwagawa

Departure data for this station is not available on this site.

Koiwagawa Station opened on 11 December 1944 as Koiwagawa Signal Box of the Ministry of Transport and Communications, and was upgraded to a station on 1 February 1950. Parcel handling ended on 1 September 1972, when the station became unattended. With the privatisation of Japanese National Railways on 1 April 1987 it was absorbed into the East Japan Railway Company (JR East) network. A landslide between Koiwagawa and Atsumi Onsen on 13 July 2006 cut the Nezugaseki-Atsumi Onsen section until 9 August. The station building was rebuilt in December 2018. The 2019 Yamagata earthquake on 18 June damaged the platform and tilted poles.

Between this station and Atsumi-Onsen Station, the Sumiyoshiyama and Miyana tunnels were completed as a legacy of a Japanese National Railways-era double-tracking plan, but they remain unused to this day.