How does installing a seawall help mitigate flood damage?
by absorbing energy from storm waves
by protecting floodplains from flood damage
by moving a structure above flood level
by rerouting floodwaters to green spaces
1 answer
Installing a seawall helps mitigate flood damage by absorbing energy from storm waves. The concrete or stone barrier is designed to reduce the impact of storm surges and high tides, preventing water from reaching inland. As waves crash against the seawall, the structure dissipates some of the force and reduces the risk of flooding and erosion. This can protect buildings and infrastructure located near the shore and reduce the cost of flood damage. However, it is important to note that seawalls cannot completely prevent flooding and may have negative environmental impacts such as aversion of beach erosion and harm to marine life.