Seawalls are protective walls or embankments specifically constructed by humans to reduce the destructive force of strong waves, especially during large storms, and to prevent erosion of shorelines, primarily beaches. They may take several structural forms, but generally, the ocean-facing side is either curved, straight sloping, or vertical.

Seawalls are constructed from a variety of materials, including reinforced concrete, boulders or stones, steel, rock-filled wire cages, or a combination of these materials. Some seawalls are built in the water, while others are built on the land just off the shoreline. If you also want to hire seawall construction services then you must refer to coastseawall.com/seawalls/.

They sometimes extend out from the shore and into the water so that beach erosion is minimized or prevented. Most seawalls are built to a height that is equal to or greater than the height difference between the beach and the mainland.

Thus, seawalls are important to the preservation of beaches, which are highly valued economic and environmental areas along coastlines. Hence, seawalls are designed to protect humans and property and prevent erosion.

The purpose of a seawall is to protect areas of human habitation, conservation, and leisure activities from the action of tides and waves. As a seawall is a static feature it will conflict with the dynamic nature of the coast and impede the exchange of sediment between land and sea.