Sea walls are built for the protection of one area. They are very easy to replace, and last around 10-15 years at top condition, showing signs of aging at around the first 15 years. Seawalls are used for protection because it stops erosion of one particular area. It is also used to protect other people's houses from braking down because of erosion. Sea walls have a life span of around 30 years, give or take due to the conditions it is in. Although the sea wall will last for around 30 years, it will begin to show signs of aging after around 10-15 years of its life. Sea walls may stop erosio…
