Fortescue Inlet: Offshore Deposition Basins for Navigation Channel Management in Small Craft Inlets

A comprehensive case study of the coastal processes for Fortescue Inlet (New Jersey, USA) is presented with objective minimizing maintenance dredging navigational channel. This compares effectiveness both traditional sedimentation control structures and modified templates, including construction a new jetty, modification length orientation an existing use upland offshore deposition basins. The alternatives were analyzed using Deflt3D Flexible Mesh. results indicate that sediment transport near dominated by wave action pronounced seasonal variations in direction. site exhibits relatively shallow depths above depth closure bars. Consequently, much occurs well (approximately 300 m offshore) beyond jetty. structural modifications (i.e., relocation or lengthening) jetty do not improve rate within Instead, basins delivers most promising improvement, potential cost savings over 10% strategies.