Jetty
/ˈdʒɛti/
noun
A structure of wood or stone extended into the sea to influence the current or tide, or to protect a harbor or beach.
A wharf or dock extending from the shore.
A part of a building that jets or projects beyond the rest, and overhangs the wall below.
Synonyms: breakwater, mole, pier
verb
To jut out; to project.