A comprehensive engineering study in the form of a technical feasibility study is to be carried out for planning and designing a harbor consisting of following features: (i) Access channel to allow simultaneous two-way traffic of the largest container vessels; (ii) a suitable breakwater layout;
(ii) a sheltered harbor basin with safe navigation and maneuvering for vessels; (iv) an optimum number of berths for LNG, General Cargo, Dry bulk, liquid bulk and containers at a minimum depth of 18 meters; and (v) associated terminal area with adequate storage, operation, and building space conforming to internationally accepted norms. In conformance with the findings of the preliminaryenvironmental assessment, the study should consider the impact on (i)the coastal regime and coastal stability (ii) Kelani River hydrology, seasonal flooding, sedimentation and morpho logy.(iii) structures in the Kelani River,(iv) Existing pipelines as sewer pipeline, crude oil pipeline and petroleum pipelines (V) Effect of ground water table variations of the adjacent main land due toreclamation.