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  2. Technical Information
  3. Introduction of the Honshu-Shikoku Bridge Project
  4. Innoshima Bridge

Introduction of the Honshu-Shikoku Bridge Project

Innoshima Bridge

Bridge Type:
Stiffened truss suspension bridge with three spans and two hinges
Ground Breaking Ceremony:
January 8, 1977
Commenced on-Site Construction:
January 31, 1977
pened to Traffic:
December 4, 1983

Innoshima Bridge which crosses Mekari Seto is connected Mukaishima Island with Innoshima Island. This Bridge was completed in 1983 as the first suspension bridge of the Honshu-Shikoku Bridges.
The center span length (770 m) of the Bridge was the longest one in Japan at that time.
Steel deck was firstly applied for long-span bridges in Japan and the experience has been made the best use of the construction of long-span bridges.
The beautiful figure can be seen from Honshu side.

Side View

(Unit : meter)