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Seiun Bridge


The construction of “Seiun Bridge” was completed in December 2004. This bridge is suspended over the Iyo river between the Route 319 and the ground where Yamashiro junior high school stands.
Awarded the first prize from The International Federation for Structural Concrete in 2006 and that was the first prize ever won by Japan under the category of concrete bridges. Other prizes include the Tanaka prize from Japan Society of Civil Engineers and the prize by the Institute for Pre-Stressed Concrete Engineering.
The structure of Seiun Bridge is a type of truss arch bridge called “Self-anchored PC (prestressed concrete) multiple truss bridge”. Among other such bridges with arched under-truss, this is the largest and the first to have the roadway. Such method of construction was adopted here as the site condition along the deep valley was difficult to set up the large-scale heavy machineries. This way of engineering did not require to construct the staging support nor piers. This type of bridge engineering is expected to become future model to enrich the life of people living in the mountainous area. 

Address Ohkawamochi, Yamashiro Cho, Miyoshi City
Parking lot
Access Take exit at Ikawa-Ikeda IC → Take the Route 32 bound for Kochi → Take the Route 319 bound for Shingu in Ehime pref. (The journey takes approx. 20 minutes by car.) By train - Nearest station is JR Awa-Kawaguchi on Dosan Line and then travel 5 minutes by car
Contact City of Miyoshi, Tourism Division
Phone 0883-72-7620
Fax 0883-76-0203
Google Map Coming Soon
Contact / Miyoshi City Office of Commerce,Industry & Tourism(Tourist information contact 0120-404-344)
2145-1 Machi, Ideda Cho, Miyoshi City, Tokushima 778-0002
TEL:0883-72-7620 FAX:0883-76-0203
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