Definition: A Seawall (also written as sea wall) is a form of hard and strong Costal Defense constructed on the inland part of a Coast to reduce the effects of strong waves.

Materials: most commonly, reinforced concrete, boulders, steel, or gabions. Additional seawall construction materials may include vinyl, wood, aluminium, fibreglass composite and with large biodegrable sandbags made of jute and coir.



"Coastal erosion and the ban on hard structures - North Carolina Digital History." LEARN NC. N.p., n.d. Web. 9 Apr. 2010. <>.