Studi Topografi Wilayah Belakang Breakwater dan Seawall di Pantai Indah Selat Baru

The purpose of this research was to measure and present coastal topography in order to identify the influence of coastal protection structures on the increase of sediment elevation. The results show that the presence of the breakwater effectively reduces wave energy, leading to accretion in the form of sediment deposition behind it, which increases the coastal elevation and stabilizes the beach. Meanwhile, in the seawall area, variations in elevation also indicate accretion, although at different levels. In conclusion, coastal protection structures, particularly breakwaters, play an important role in increasing sediment elevation and supporting the stability of coastal areas.