We have unique construction methods, such as truss bridges, lowering methods (for concrete arch bridges), bi prestressing construction methods, and the smart connected bridge method. These methods are adapted according to their suitability for each construction site.

It has been 60 years since the establishment of the Oriental Concrete Corporation, the predecessor of Oriental Shiraishi Corporation. We, as the pioneer of PC technology in Japan, will seek new possibilities and continue to respond to client needs with our technology.

We, as the pioneer of the pneumatic caisson method, constantly improve our technology to respond to contemporary requirements. We have steadily developed our pneumatic caisson technology to satisfy the current scheduling needs of very deep and large-scale underground structures.

Oriental Shiraishi , a pioneer in PC technology and pneumatic caissons, has added the Japan Bridge Corporation, Taikoh Giken Corporation, and Yamaki Industry Corporation to our group of companies. This positions us to make significant contributions as a professional group with a diverse range of technologies.