Amakusa Seto Bridge

Amakusa Seto Bridge is a road bridge that crosses the Hondo Seto strait, connecting Japan National Routes 266 and 324 with a steel structure and elevated roadway. The bridge consists of multiple spans designed to allow vessel traffic to pass underneath while supporting steady vehicle flow across the water.

The bridge was completed in 1974 and represented a major step in improving transportation links between mainland Kyushu and the Amakusa islands. This connection enabled faster and more direct routes for freight and passenger travel throughout the region.

The bridge's orange support structures reflect traditional Shinto design elements, incorporating local architectural principles into modern engineering.

You can access the bridge from local roads that branch off from National Routes 266 and 324, with entry points at several locations. Crossing during daylight hours is best since the roadway is well-lit and traffic patterns are more predictable throughout the day.

The structure features a specialized truss design with four main support piers that allow vessels to navigate underneath while maintaining structural stability. This engineering approach lets the bridge withstand strong wind forces and wave action common to the strait.

GPS coordinates: 32.44806,130.20394

Latest update: December 9, 2025 18:48