History
Nijūbashimae Station is a Tokyo Metro Chiyoda Line stop in Marunouchi, Chiyoda ward, numbered C-10 and named after the Nijūbashi bridge fronting the Imperial Palace. The 1962 Tokyo Urban Transport Council report 6 identified the corridor as Tokyo Line 8, finalised as Line 9 by Ministry of Construction notice 3379 in December 1964, which formally fixed the station — provisionally Babasakimon — into the plan. The Teito Rapid Transit Authority opened it on 20 March 1971, and the facility passed to Tokyo Metro at the TRTA privatisation on 1 April 2004. From 17 March 2018 the secondary name "Marunouchi" was attached to clarify the station's location; departure melodies followed on 27 October that year and platform doors on 3 November.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
Despite its name, the station is closer to Tokyo Station than to the Imperial Palace; an underground passageway down Gyōkō-dōri completed in 2007 connects it directly to Tokyo's Marunouchi central underground exit, and a second route to the Keiyō Line concourse opened in 2021.