What is Sea wall?
[[File:Sea Wall near Allhallows On Sea - geograph.org.uk - 1631455.jpg|thumb|Sea Wall near Allhallows On Sea]] A '''sea wall''' is a wall built to protect land along the coast from [[erosion]] and [[flood]]ing from the sea. While they do provide protection from the waves and tides, a sea wall may also create more problems. Erosion of beach sand may increase because of the wall, and the wall may change the direction and flow of waves and caused erosion in other places. {{Tech-stub}} [[Category:Flood control]]