Geotextiles protect riverbanks from erosion due to currents or lapping. When used in conjunction with natural or artificial enrockments, they act as a filter. Protection of the coast against erosion is of paramount importance in coastland management. Waves, littoral drift, storm surges, and sea-level rise coupled with human activities near-shore such as dredging are the main causes of coastal erosion.
Geotextiles used on artificial concrete beaches or breakwaters protect substrate under reinforced concrete from erosion due to the intensity of water waves.
