The primary purpose of a seawall is to protect residential shorelines from upland erosion and surge flooding. A seawall acts as a coastal defense to these types of events. When a wave crashes against the shore, the seawall redirects a lot of that energy back to the water. This greatly reduces erosion of the shoreline. It also protects your home and land from flooding. Retaining walls along beaches and inland shorelines offer many advantages.
First, these walls help protect against surge flooding. Residents and visitors can then safely enjoy activities like biking, walking, and sightseeing along the shoreline. In addition, this coastal protection prevents damage to the environment. Erosion and flooding can wash away soil and reduce your usable shoreline. They also both disrupt local ecosystems and harm wildlife.