This experiment was conducted to study the engineering method for the prevention of casualties due to Tsunamis for the change of circumstances in the port such as the construction of Tsunami breakwaters when the port is improved in future. She scale of the model basin used in this experiment is horizontal 1:200 nad vertial 1:100.
　The examination of current in the present section and the planned section at the flood has been finished and the effects of the planned section at the flood has been finished and the effects of the breakwaters are discussed.