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History

May, 1889
Mr. Jinnojo Ohkubo, an assemblyman of Kagawa Pref. Diet, advocates the plan of bridges between Honshu and Shikoku.
March, 1914
Mr. Toranosuke Nakagawa, a member of the Diet in Tokushima election district, submits "Plan of a bridge crossing Naruto Strait" to the national diet.
April, 1940
Mr. Chujiro Haraguchi, the head of Kobe office, the Department of the Interior, proposes the bridge plan crossing Naruto Strait.
August, 1953
Mr. Chujiro Haraguchi, the mayor of Kobe city, encourages to carry out the site survey for Akashi-Kaikyo Bridge.
May, 1955
Accident of Utaka Ferry Boat "Shiunmaru" happened (the death toll climbs to 168).
April, 1959
Ministry of Construction (MOC) starts the site survey.
May, 1969
New Comprehensive National Development Plan is established (the routes of three expressways are finalized).
July, 1970
Honshu-Shikoku Bridge Authority (HSBA) is established to implement Honshu-Shikoku Bridge Projects.
September, 1973
Minister of MOC and Minister of Transport Ministry (MOT) indicate to make a basic construction plan of Honshu-Shikoku Bridge Projects.
October, 1973
Ministers of MOC and MOT accept the basic construction plan of the Projects.
December, 1975
Ground-breaking ceremony of Ohmishima Bridge in Nishi-Seto Expressway is held.
July, 1976
Ground-breaking ceremony of Ohnaruto Bridge in Kobe-Awaji-Naruto Expressway is held.
January, 1977
Ground-breaking ceremony of Innoshima Bridge in Nishi-Seto Expressway is held.
October, 1978
Ground-breaking ceremony of Seto-Chuo Expressway is held.
May, 1979
Ohmishima Bridge in Nishi-Seto Expressway is opened.
March, 1981
Ground-breaking ceremony of Hakata-Ohshima Bridge in Nishi-Seto Expressway is held.
December, 1983
Innoshima Bridge in Nishi-Seto Expressway is opened.
June, 1985
Ohnaruto Bridge in Kobe-Awaji-Naruto Expressway is opened.
April, 1986
Ground-breaking ceremony of Akashi-Kaikyo Bridge in Kobe-Awaji-Naruto Expressway is held.
May, 1986
Ground-breaking ceremony of Ikuchi Bridge in Nishi-Seto Expressway is held.
January, 1988
Hakata-Ohshima Bridge in Nishi-Seto Expressway is opened.
April, 1988
Seto-Ohashi Bridges conclude signed the sister bridge affiliation with Golden Gate Bridge in USA.
April, 1988
Seto-Chuo Expressway and JR Seto-Ohashi Line are opened.
May, 1988
Ground-breaking ceremony of Kurushima-Kaikyo Bridges in Nishi-Seto Expressway is held.
July, 1988
Seto-Ohashi Bridges conclude the sister bridge affiliation with Fatih Sultan Mehmet Bridge in Turkey.
August, 1990
Ground-breaking ceremony of Tatara Bridge in Nishi-Seto Expressway is held.
December, 1991
Ikuchi Bridge in Nishi-Seto Expressway is opened.
July, 1991
Ground-breaking ceremony of Shin-Onomichi Bridge in Nishi-Seto Expressway is held.
March, 1997
the head office of HSBA is shifted to Kobe from Tokyo.
April, 1998
Akashi-Kaikyo Bridge in Kobe-Awaji-Naruto Expressway is opened.
June, 1998
Akashi-Kaikyo Bridge concludes the sister bridge affiliation with Great Belt Bridge in Denmark.
May, 1999
Shin-Onomichi Bridge, Tatara Bridge and Kurushima-Kaikyo Bridges in Nishi-Seto Expressway are opened.
May, 1999
Tatara Bridge concludes the sister bridge affiliation with Normandy Bridge in France.
May, 2003
Debt Relief Special Law of HSBA is issued (the national government succeeds to the debt of HSBA, 1.34 Trillion JPY, with interest).
June, 2004
Privatization Laws for Four Highway Public Corporations are issued.
October, 2005
Honshu-Shikoku Bridge Expressway Company Limited (HSBE) is established.
April, 2006
Nishi-Seto Expressway is fully completed.
May, 2008
Seto-Ohashi Bridges conclude the sister bridge affiliation with Oresund Bridge between Denmark and Sweden.
May, 2009
HSBE signs the Memorandum of Understanding with Korea Expressway Corporation.
July, 2009
HSBE signs the Memorandum of Understanding with Kobe University.
July, 2011
HSBE signs the Memorandum of Understanding with Japan Expressway International Company Limited.

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