Offshore
One of the various engineering works connecting rivers, harbors, and coastal areas that is intended to control the current or tide or shield a harbor or beach from waves (breakwater).
3.1. OFFSHORE JETTY
A jetty is a wharf building that serves as a place for ships to dock, usually protruding towards the sea. It is designed to have sufficient draft for large ships and is made of reinforced concrete for the upper structure and steel pipe piles or spun piles for the lower structure.