Iidabashi

Weekday departures: 2,647/day · Sat & holiday departures: 1,907/day

First / last train (weekday): 0:14 / 24:41

Busiest hour: 8:00–9:00 (202)

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0:00 ─ 23:00

Counts are departures in the timetable data shown on our live map.

• Tokyo Metro Tōzai Line: Kagurazaka ⇄ Kudanshita
• Namboku Line: Korakuen ⇄ Ichigaya
• Yurakucho-Ikebukuro Line: Edogawabashi ⇄ Ichigaya
• Oedo Line: Kasuga (Tokyo) ⇄ Ushigome-kagurazaka
• Chūō Main Line: Suidobashi ⇄ Ichigaya

Iidabashi Station opened on 15 November 1928 to consolidate the closely-spaced Ushigome (opened 1894) and Iidamachi (opened 1895) stops on the Chūō Main Line. TRTA opened the Tōzai Line platforms on 23 December 1964, the Yūrakuchō Line on 30 October 1974, and the Namboku Line on 26 March 1996; the Toei Ōedo Line followed on 12 December 2000, designed by architect Makoto Sei Watanabe. JNR’s platforms passed to JR East on 1 April 1987 and Suica IC service began on 18 November 2001. On 12 July 2020 the JR platforms were rebuilt and moved roughly 200 metres west to eliminate a sharp curve that had caused a steady stream of platform-gap accidents.

The original JR platform sat on a 300-metre-radius curve, leaving gaps of up to 33 centimetres between train and platform and a height mismatch of 20 centimetres — conditions that produced roughly ten falling-onto-tracks incidents per year until the 2020 westward rebuild straightened the alignment.