Innoshima Bridge, Suspension bridge in Onomichi, Japan
Innoshima Bridge spans the Mekari Strait to connect Mukaishima Island with Innoshima Island using a double-deck steel structure that extends about 1270 meters. The structure has traffic lanes on the upper level and a separate pathway for pedestrians and cyclists on the lower level.
The bridge's construction was completed in December 1983 and marked a milestone in Japanese engineering. It was among the first major structures in the country to use steel decking elements on this scale.
The bridge is part of the Shimanami Kaido expressway system that connects multiple islands in the Seto Inland Sea. It plays an important role in daily life for residents and visitors who travel between island communities.
The upper level is reserved for vehicles while the lower level sits about 58 meters above sea level and opens to pedestrians and cyclists. Both pathways offer views across the strait, and visitors should be prepared for wind conditions that feel stronger at this height.
The Mekari Strait running beneath the bridge is one of the busiest shipping channels in the country with many large vessels passing daily. The structure was specifically designed with a clearance exceeding 50 meters to accommodate this heavy maritime traffic.
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