Omori Station (大森駅) is a ground-level station with a concourse in Ōta, Tokyo. East Japan Railway Company runs it on the Keihin–Tōhoku Line. It opened on 12 June 1876.
History
Omori Station (大森駅) opened on 12 June 1876 as a government railway station, for passengers only. In 1877 Edward S. Morse, travelling by train from Yokohama to Shimbashi, spotted the Omori shell mound (大森貝塚) from the left-hand window just after the train left the station. Double track was laid between Omori and Kawasaki on 1 March 1879, and between Shinagawa and Omori on 14 November 1880. Freight handling began on 1 April 1898. On 1 February 1901 the Keihin Electric Railway opened Omori-teishajo-mae Station when its line to Kawasaki opened. The station was later renamed Omori Station. On 8 May 1904 the section from Omori-teishajo-mae to Kaigan (now Omori Kaigan) became the Keihin Electric Railway's Omori Branch.
In February 1913 the Sanno-guchi ticket gate opened, now the west exit. On 20 December 1914 the Keihin Line, the forerunner of the Keihin–Tohoku Line, began running. In 1919 the Sanno-guchi gate was expanded. In 1930 a shared bus route between Omori Station and Ikegami opened. On 8 March 1937 the Keihin Electric Railway's Omori Branch closed. On 10 December 1959 the north exit opened. On 1 October 1974 freight handling ended.
In September 1977, to mark the centenary of the discovery of the Omori shell mound, a stone monument reading 'Birthplace of Japanese Archaeology' was put up on the platform. In July 1982 reconstruction of the station building began, and the present building was completed in July 1984. On 14 September 1984 the Omori Primo station building opened. It is now called Atre Omori. In April 1985 a footbridge linking the north gate with Minami-Oi in Shinagawa Ward was completed, as a joint project of Shinagawa and Ota wards. On 1 November 1986 luggage handling ended. On 1 April 1987, when national railways were split up, the station passed to JR East.
On 10 March 1989 the north stairs were widened. A work-vehicle siding on the former luggage platform was removed to extend the platform to the south. On 20 March 1990 a travel centre opened. On 20 September 1991 automatic ticket gates came into use at the central gate, and on 27 September 1991 at the north gate. On 16 March 1994 an up escalator from the platform to the central gate was installed. In July 2001 the first Omori Dream Concert was held in the central gate concourse. Suica could be used from 18 November 2001. On 13 December 2002 a down escalator from the central gate to the platform was installed. On 7 February 2003 a lift linking the platforms to the central gate was installed. On 15 November 2005 Omori Primo was renewed and renamed Atre Omori. On 3 July 2007 Atre Omori 2 was renewed, and on 9 October 2008 Atre Omori was renewed again.
On 31 March 2018 the View Plaza closed. On 23 September 2019 platform doors came into use. On 31 October 2021 the Midori no Madoguchi ticket office closed. On 11 November 2023 a customer support call system was introduced at the north gate. On 1 October 2025 the Eki-net Q Ticket service started.
See all 39 dated events in the Data view →
Written by an AI from this station's own sourced facts (the dated events in the Data view), nothing else, and checked by a program for dates and numbers that are not in those facts. It can still be wrong. Found a mistake? . Adapted from Japanese Wikipedia, CC BY-SA 4.0; this text is shared under the same licence.