Design of Shipping Channels, Berthing Areas and Turning Basin by Utilizing Bathymetry and Side Scan Sonar Data at the Branta Harbor, East Java

The basic facilities in a port consist of shipping channels, berthing area, and turning basins. Those facilities will also be built at Branta Harbor so large ships can enter and dock. Those basic facilities are not yet available due to the lack of appropriate data. The port planning activities require bathymetric data, seabed imageries, tides, and topographic conditions of the port area. It is essential in port planning, which can guarantee the safety of maritime shipping. The depth of Branta Harbor ranges from 0.7 m to 25.2 m. The condition of the seabed is mostly sand, and several submarine pipes, trawl nets, and fishing nets were found in the area, although there were no endangered shipping objects. The shipping channels is designed as a two-way lane with a length of 1,550 m and a width of 200 m. The berthing area is 23 hectares, the emergency area is 11.56 hectares, and the turning basin is 7.06 hectares. The main facilities are designed with a depth of 8 m and must be dredged in the turning basin area and shipping channel. By this planning, it is hoped that the draft of ships that can enter Branta Harbor up to 7 m.