A feasibility study was performed by NCI to address adverse navigation and shoaling conditions at this open coast site. Studies included numerical modeling of the nearshore wave climate, along with detailed analysis of the harbor’s shoaling history to identify the sediment transport mechanism in and around the entrance. Preliminary designs were prepared for new groins, jetty modifications, and an offshore breakwater extension to lesson hazardous navigation conditions and reduce maintenance dredging frequency by trapping sand more efficiently. The NED plan was selected on the basis of technical, economic benefit, and environmental impact criteria. In a subsequent project, the Ventura Harbor Sand Bypass Regional Beneficial Uses reconnaissance study and report was prepared by NCI for use to implement a sand bypassing system at the Harbor. Work included addressing problems and opportunities; planning constraints; qualitatively assessing potential project outputs; identifying disposal/placement alternatives; investigating pump systems to match disposal alternatives; describing likely environmental effects; preparing preliminary cost estimates for pump systems and disposal alternatives; developing a Project Study Plan (PSP); and preparing an expedited reconnaissance report.

An engineering feasibility study was performed by NCI for widening of the small-craft harbor entrance channel to alleviate traffic congestion. Surveys of existing and future boating demands were made to ascertain harbor capacity and use limits. Traffic simulation studies analyzed structural and non-structural methods to optimize inlet navigation and improve boater safety. Formulated plans included channel widening via jetty relocation or modification, traffic lane separation, and increased patrol enforcement. Alternative plans were evaluated for economic and recreational benefits, reduction of shoaling and maintenance dredging requirements, and impacts to the local coastal processes.

NCI performed the engineering feasibility study for expansion of the existing harbor facilities to support AOE-6 class ships. A three-phase plan to improve the port’s deep draft navigation, berthing areas, and infrastructure was formulated and selected from seven alternatives. The varied conceptual designs proposed and evaluated included wharfs, trestles, moles, breakwaters, offshore island terminals, and tunnels. Associated dredging, break bulk and containerized cargo transfer methods, along with supporting facilities and infrastructure improvements, were also studied. Alternatives were compared to port operational requirements, oceanographical design constraints, constructability, cost, and environmental impact considerations for selection of a preferred plan.