Innoshima Bridge

The Innoshima Bridge stretches 1270 meters across the Mekari Strait, connecting Mukaishima Island to Innoshima Island with a double-deck steel structure.

The construction of Innoshima Bridge, completed in December 1983, marked a milestone in Japanese engineering as it incorporated steel decking for the first time in the country.

The bridge forms an integral part of the Shimanami Kaido expressway system, which links multiple islands in the Seto Inland Sea through a network of bridges.

The bridge features separate levels for vehicles on the upper deck and a dedicated path for pedestrians and cyclists on the lower deck at 58 meters above sea level.

The bridge spans over the Mekari Strait where more than 400 large vessels navigate daily through the channel, requiring a clearance height exceeding 50 meters.

Location: Onomichi

Official opening: December 4, 1983

Height: 145 m

Length: 1,270 m

Longest Span: 770 m

Made from material: steel

Website: https://jb-honshi.co.jp/english/corp_index/technology/introduction/introduction_innoshima.html

GPS coordinates: 34.35833,133.18217

Latest update: May 12, 2025 08:22