History
Shinainuma Station traces its origin to the Hataya Signal Stop, opened on 16 August 1918 between Matsushima and Kashimadai on the original mountain alignment of the Tōhoku Main Line. It was upgraded to a full station on 26 December 1932. When the coastal alignment via Rikuzen-Sannō opened in 1944, the mountain section through here lost importance, and the old Matsushima Station–Shinainuma stretch was eventually abolished in 1962. Freight was discontinued in 1972 and the station unstaffed in 1984. JR East took over at privatisation in 1987. A new station building came into use on 1 March 2020.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The station's name comes from a former freshwater lagoon south of the site, drained piecemeal from the Edo period through the early Shōwa era; the lagoon itself no longer exists.