OKAYAMA AND KAGAWA, JAPAN

Seto-Ohashi Bridges

Opened 10 April, 1988

Seto-Ohashi Bridges is a group of two-level, long-span bridges with road on upper deck and railway on lower deck, and passing through the center of the elegant archipelago in the Seto Inland Sea, which was the first in Japan to be designated as a national park. The sight of one of the world’s longest group of long-span bridges, suspension, cable-stayed and truss bridges, is truly spectacular.

Shimotsui-Seto Bridge

Hitsuishijima Bridge

Iwakurojima Bridge

Kita Bisan-Seto Bridge

and Minami Bisan-Seto Bridge

Seto-Ohashi Bridges Fact Sheet

Name
Seto-Ohashi Bridges
Local moniker(s)
Great Seto Bridge
瀬戸大橋 (Seto Ōhashi)
Shimotsui-Seto Bridge:
下津井瀬戸大橋 (Shimotsui Seto Ō-hashi)
Hitsuishijima Bridge:
櫃石島橋 (Hitsuishijima-kyō)
Iwakurojima Bridge:
岩黒島橋 (Iwakurojima-kyō)
Kita Bisan-Seto Bridge:
北備讃瀬戸大橋 (Kita Bisan Seto Ō-hashi)
Minami Bisan-Seto Bridge:
南備讃瀬戸大橋 (Minami Bisan-Seto Ōhashi)
Location
Okayama and Kagawa Prefectures, Japan
Connects a series of five small islands in two prefectures in the Seto Inland Sea.
Coordinates
Shimotsui-Seto Bridge:
34°25′51″N 133°48′22.4″E
Hitsuishijima Bridge:
34°24′35″N 133°48′25.6″E
Iwakurojima Bridge:
34°24′06.3″N 133°48′33″E
Kita Bisan-Seto Bridge:
34°23′43.5″N 133°49′13.7″E
Minami Bisan-Seto Bridge:
34°21′51″N 133°49′31″E
Construction started
1978
Date opened
10 April, 1988
Design type
Suspension/Cable stayed etc.
Suspension:
Shimotsui-Seto Bridge
Kita Bisan-Seto Bridge
Minami Bisan-Seto Bridge
Cable-stayed:
Hitsuishijima Bridge
Iwakurojima Bridge
Type of traffic
(road and/or rail)
Road
upper deck
Rail
lower deck
Owner
Japan Expressway Holding and Debt Repayment Agency (JEHDRA)
Operator
Honshu Shikoku Bridge Expressway Company Limited
Urban Ace Sannomiya Building
Onoedori 4-1-22, Chuo-ku
Kobe 651-0088, Japan
Links
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Last updated: February 7, 2022

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