The port of Hazira is primarily built for LNG facilities, and later expanded with a basin for a container terminal. The high current velocities in front of the harbor entrance yielded a serious design challenge, and were difficult for the construction of breakwaters and dredging works as well. Monsoon waves and swell affected the works further.
The high silt load of the current causes large maintenance volumes in the harbor basin and the entrance channel (with fine sand as well).
Maintenance schedules combining trailing suction hopper dredgers and water injection dredgers have been tried and tested in order to minimize annual maintenance dredging costs.
Detailed Description of Actual Services Provided by Blue Pelican Associates:
Dredging study, including cost estimation for capital dredging works
Maintenance dredging strategies (WID) after the new port construction is put in place
Advise on working methods and construction planning for expansion
Assessment of dredgeability, suitable equipment deployment, works program and cost estimate
Advise in technical/commercial negotiations with Contractor
Study on Technical and Financial feasibility for maintenance dredging with a Water Injection Vessel
Preparing Employer Requirements for a newbuilt WID vessel