Wakato Ohashi is a toll road totalling 2.1 km in length and including Japan's first full-scale suspension bridge, which was completed in September 1962. The road has suffered from chronic traffic jams due to the increasing traffic volume of recent years. To improve the situation, the road was widened - increasing the lanes from two to four - by making use of the existing sidewalks on the suspension bridge section and adding two lanes adjacent to the existing two-lane road along the access bridge sections on both the Tobata and Wakamatsu sides. Construction was hampered by a number of restrictions: the road could not be blocked during construction since it is a major trunk route in Kitakyushu City, and work on the access sections on the Tobata and Wakamatsu sides had to be carried out close to both the existing bridges and densely populated areas. Coping with these restrictions through successful design and implementation plan, a project unparalleled in the world - widening a road including the addition of lanes to the existing suspension bridge - was completed. The widened road is expected to contribute further to the development of the industry and the economy in the district. (A) For the covering abstract see IRRD 863480.

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  • Corporate Authors:

    Japan Society of Civil Engineers

    1-chome, Yotsuya, Shinjuku-ku
    Tokyo,   Japan  160-0004
  • Authors:
  • Publication Date: 1992-3


  • English

Media Info

  • Features: References;
  • Pagination: p. 123-34
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00662312
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jul 28 1994 12:00AM