We have been involved in building many hanging bridges or cable-stayed bridges - typical Japanese bridges such as the Wakato Bridge, which was the first hanging bridge in Japan, and the Honshu-Shikoku Bridge, which ushered in the era of large bridges. Building large bridges requires advanced technologies to ensure they are stable in the wind, and to study their complicated behavior during earthquakes. We have responded to the expectations of society with its prominent technological capabilities. Moreover, we have demonstrated these technological capabilities in building large bridges overseas, including the Stonecutters Bridge, which has the second longest cable-stayed span in the world.

Floating bridges do not use supporting substructures like conventional bridges, and are therefore suited to very wide stretches of water and locations where the sea bed foundation is too soft to hold a substructure. Vertical load is supported by buoyancy, while horizontal load is absorbed either by anchors (usually chains or cables) or by rubber fenders as used on ship moorings. The floating design also shields the bridge from earthquake movement and provides a high standard of protection against seismic forces. We built the Yumemai Bridge at Osaka, the only large-scale floating bridge of its type in Japan.

The overhead-crossing rapid construction method enables construction of overhead-crossing bridges at congested intersections in a very short time-frame so as to minimize disruption to traffic as well as the impact on the local environment.