In recent years coastal development projects including man-made islands are carried out in Japan. In these projects floating bridges as the access road is considered to be more economically constructed than usual types of bridge under the severe conditions such as deep sea area and soft seabed. Theleft-lettore Ministry of Transport makes researches on applicability of floating bridges from technical and economical point of view.
According to the results of case studies, floating bridges are applicable at the relatively calm sea area like an enclosed bay where the depth from water surface to support layer is larger than 15m.
