STUDI EFEKTIFITAS BANGUNAN SEAWALL TERHADAP ABRASI DI PANTAI WISATA MAMPIE KABUPATEN POLEWALI MANDAR

Abstract

The objective of this research is to know the seawall construction effectiveness at Pantai Wisata Mampie in
assisting the coastal sedimentation process and to know the seawall physical performance in protecting the objects
behind it. Sedimentation in front of the seawall is measured by comparing the cross sections of the beach at the time
before and after construction. Measurements after construction are measured teristically using the Total Station.The
performance of seawall construction is obtained from the value of Construction Condition Index based on the
assessment of the physical components of the seawall construction at the top, the outer body, the inner body, the outer
foundation and the outer foundation.The results of this study indicate that the elevation of sand in front of the seawall
construction thickening of 8-15 cm which shows the seawall construction is effective in adding the process of
sedimentation and effectively in reducing abrasion. From the index values of physical components, the Construction
Condition Index = 1.0 means that the coastal protection structure is in good condition.