Hydrodynamic Modelling of New Segment Channel to Navigation Channel in Hau River, Vietnam

The channel for large vessel to Hau River was completed in January 2016 for vessels of 10,000 DWT full load and 20,000 DWT half load to Can Tho Port. The large vessels from the East Sea to Can Tho port must go through Duyen Hai harbour, then go into Kenh Tat channel, and then go to Quan Chanh Ba channel to enter the Hau River then to Can Tho port. A new segment channel length of 23.9 km consists of three sub-segments such as Offshore, Kenh Tat, and Quan Chanh Bo channels. Kenh Tat channel is a new dredging channel connecting the navigation channel in Quan Chanh Bo channel to the east sea of Vietnam with length of 7.7 km. Duyen Hai harbour was built in 2016, and the harbour basin was protected by two breakwaters. These infrastructures induced an extremely complicated hydrodynamic regime. In this study, the hydrodynamic features were depicted by the numerical model and the result indicated that the hydrodynamic characteristics in the new segment channel to Quan Chanh Bo and Kenh Tat channels depend on the tide and river flows in Dinh An, Kenh Tat estuaries of Hau River and Cung Hau estuary of Tien River.