An integrated deepwater offshore port includes at least one constructed platform, having a pier deck upper portion and an breakwater lower portion. The port sits in deep water as a structure independent of dry land or any structure thereon. The breakwater lower portion includes a plurality of prefabricated perforated modular marine structure units capable of interconnection. The prefabricated perforated modular marine structure units are anchored to a seabed by means of piles partially buried into the seabed and mechanically secured to the prefabricated perforated modular marine structure units.
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