Coastal engineering is the branch of civil engineering concerning the specific demands posed by constructing at or near the coast, as well as the development of the coast itself.The hydrodynamic impact of especially waves, tides, storm surges and tsunamis and (often) the harsh environment of salt seawater are typical challenges for the coastal engineer – as are the morphodynamic changes of the coastal topography, caused both by the autonomous development of the system and man-made changes.