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Irabu-ohashi Bridge

Bridge Type, Construction Method, etc
Precast segmental bridges
Construction site
Okinawa Prefecture
Completion date

Name Irabu-ohashi Bridge
Ordered by Okinawa Prefecture
Awards Japan Society of Civil Engineers, Tanaka Award
Construction site Okinawa Prefecture
Completed 2010
Bridge length 630 m (2,185 m total)
Effective width 8.5 m
Construction outline

PC 32-span continuous box-girder bridge (segment girders)

The Hirashimojima Airport Route is a prefectural road connecting Miyako Island and Irabu Island, and the Irabu-ohashi Bridge, a remote island bridge, spans 3,540 m of this route.

The main girders were erected using the balanced cantilever method on segments manufactured on-site.




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