Cost economical coastal erosion protection scheme a case study

Climate variability, change in environment conditions and its resulting extreme events has caused serious disasters over the past decades. Flooding became more severe in low lying coastal areas due to increase in sea level. Growth of urbanization towards coastal regions has caused depletion in green areas such as mangroves, coral reefs; which otherwise its presence act as storm and sediment barrier. Wide range of coastal protection system such as sea wall, break water, various attracting and repealing groynes are used. Green coastal protection solutions such as re-nourishment of coastal areas, beaches should be used in conjunction with these hard solutions. Mechanism, factors affecting, sensitivity and intensity of erosion process should be known in depth before selecting appropriate protection system. Present case study represents the coastal region of Andhra Pradesh, where coastal erosion has caused serious misery to the local habitants. Land encroachment of about 15m has been recorded every year based on collected data from time lapse tool in Google Earth Pro. It is estimated that if suitable measures will not take to prevent this continuous coastal erosion. Then this may lead to serious disaster in the area. Accordingly, suitable cost economic coastal erosion technique has been presented to reduce this encroachment impact.