History
Higashi-ōjima Station opened on 21 December 1978 as the eastern terminus of the Toei 10-go Line (now the Toei Shinjuku Line), with construction completed three weeks earlier. The elevated platforms straddle the Kyū-Naka River, placing the station's two exits on opposite banks in Kōtō and Edogawa wards. With the line's December 1983 extension to Funabori, Higashi-ōjima lost its terminus role and became an intermediate stop. The Kantō-no-Eki-Hyakusen committee recognised the station in 2000 for its unusual bridge layout, PASMO support arrived in March 2007, and a multi-year refurbishment adding enclosed waiting rooms completed in May 2018.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
The platforms span the Kyū-Naka River, so the Kōtō- and Edogawa-ward exits sit on opposite banks with a boundary marker on the platform itself.