Seawall
A seawall is a wall, dam or other barrier built to provide protection from the sea and its waves due to wind and tides. A seawall can be built either in the sea to protect the shore, harbor or boats within a marina, or between the sea and land to protect the embankment from erosion by the sea. A seawall located in the sea is commonly called a breakwater and is usually built with large rocks, whereas, a seawall located bewteen the sea and the land may be built with large rocks, large stackable concrete blocks sometimes called ecology blocks, reinforced concrete, steel sheet or treated wood piling.
Also see: retaining wall.
