Country : JapanMurots

Murotsu worldport, Kochi Prefecture, located east of the southern tip of Misaki Muroto, Kochi and maritime zone hit with the body of a coastal windswell navigational choke point that the right and left from the old worldport of refuge as a crucial role to fulfill. Meiji period until Japan's whaling celebrated as a place name SETA, today Japan is one of the largest deep-sea tuna fishing base known as.
maintenance is Genna 4 (1618), a local incomer the Ogasawara Satoru Hazime by the harbor entrance remove construction will be held, Kanei 19 (1642), in the field Kaneyama been fixed by the first worldport Shape built. Rolled treasure 5 (1677), the worldport of drilling, Tosa a national big business as the Tosa clan Karo Kaneyama in the field of life by a magistrate's tree hand underway, rolled treasure 7 ( 1679), currently in the worldport is completed. Taisho 13 years to as open sea worldport expansion to a full-scale construction started, and the number of times of disaster and to overcome the Showa 19 years now before the worldport is completed. Showa February 1927 haven designated as a secondary business as before displaced by the side of the 6m plans, digging method in Showa 35 years groundbreaking, the 46 completed in the current worldport and it has been.

Murotsu worldport in the direct business, breakwater (I) the development started. Breakwater (I) are from the Showa 55 year started, 57 years wave of the block to begin production. 1,200m Showa October 1960 to the local building-up work to begin construction on the FY 2001 to 1200 m of the 515 m was completed.
Previously, the caisson produced in the harbor mooring and floating docks. In the narrow harbor in the fabrication work, but generally ships sail KITASHI interfere with the time limits set by MOARI construction efficiency is not the situation.
FY1999 from the caisson and wave block fabrication yard work for the construction to begin. After completing yard work, construction increased by the breakwater maintenance is efficient and able.