How do both jetties and seawall help manage beach erosion?
Jetties and seawalls are both structures built along the coastline to help manage beach erosion by dissipating the energy of waves and trapping sand to prevent it from being washed away.
Jetties are long, narrow structures built perpendicular to the shoreline to trap sand and sediment that would otherwise be carried away by currents and waves. By providing a barrier against the force of the waves, jetties help to create calm areas or "traps" where sand can accumulate and build up the beach.
Seawalls, on the other hand, are vertical structures built parallel to the shoreline to protect coastal properties from wave erosion. Seawalls act as a barrier to absorb the energy of the waves and prevent them from reaching the shore. They help to stabilize the beach by reducing the impact of wave action and preventing the erosion of the coastline.
Both jetties and seawalls play a crucial role in managing beach erosion by controlling the movement of sand and sediment along the coastline, reducing the impact of waves, and stabilizing the beach to protect coastal properties and infrastructure.