© TtigerMinami Bisan-Seto Bridge 1988
Minami Bisan-Seto Bridge 1988
The Bridge
The Japanese islands of Honshu and Shikoku are linked by a continuous series of 11 double-decked bridges to cross the 13km wide Seto Inland Sea. They carry two lanes of highway traffic in each direction on the upper deck and a railway line in each direction on the lower deck.
Three of the bridges are suspension bridges, two cable stayed, one truss and five viaducts. Collectively they are known as the Great Seto Bridge.
The northernmost bridge is the Shimotsui-Seto Bridge, with a 940m central span. The longest is the 1,100m-main-span Minami Bisan-Seto Bridge. It is the southernmost bridge and is a continuous suspension bridge, sharing an anchorage with the 990m-main-span Kita Bisan-Seto Bridge. They are stiffened-truss-deck suspension bridges.
Minami Bisan-Seto Bridge
Part of the Honshū-Shikoku Bridge Project
Key Facts
Longest main span bridge of the Great Seto Bridge
Four-lane motorway, upper deck
Two railway tracks, lower deck
Location
Sakaide, Kagawa, Japan
Crosses Seto Inland Sea
Linking Japanese islands, Honshu and Shikoku
Designers / Engineers
Honshu Shikoku Bridge Authority
Description
Suspension bridge
1,100m main span
1,723m total length
Main contractors
Ishikawajima-Harima Heavy Industries
Kawasaki Heavy Industries
Mitsubishi Heavy Industries Ltd.
Yokogawa Bridge Corporation
Construction
Began 16 January 1979
Opened 10 April 1988
Other long-span bridges
