Rosetta Promontory has been suffering extensive erosion. This was achieved after the construction of many water regulation structures across the Nile River as dams and barrages, particularly the Aswan High Dam. It has nearly stopped the sediment load carried by the Nile River to the Delta. In order to cease these problems several engineering hard structures have been built. These structures aided in ceasing the problem in the site of construction but translocated the problem to the adjacent sites. This study focuses on the area between the eastern seawall of Rosetta promontory to west El-Burullus fishing port. The political system in Egypt changed in January 2011, which led to the implementation of national projects. One of these projects was Ghalyon fish farm that was constructed in 2016. The Farm includes more than 1000 artificial ponds which can produce more than 3000 tons of fish and shrimps per year. This study aimed to analyze the shoreline change pattern on the long temporal scale along the study area with approximately length 58km due to the impact of manmade structures. This was accomplished by the automated delineation of the successive shorelines covering the period from 1984 to 2020 using remote sensing imagery by the MNDWI index. The extracted shorelines were manipulated through the Digital Shoreline Analysis System (DSAS) software. The area study has been divided into three phases according to the construction phase of the protective structures along the three sectors. The study revealed that Rosetta Promontory has suffered from erosion with maximum shoreline retreat -121.22. m/y before the construction of the seawall. Erosion decreased to -43.46 m/y after the construction of the Seawall, -36.22 m/y after the construction of eastern five groins and -32.7 m/y after construction the Ghalyon fish farm. The area change varied between the pre-construction and post-construction phases of the protective structures at the promontory tip. The net area was gradually positively increasing till it reaches the accretion zone after 2016. Also, the research aims to reach the optimum lengths of GFF Jetties on the down drift area and to minimize sedimentation at the inlet and outlet of GFF using 1-D model (LITPACK). The results revealed that by changing the length of the jetties, no notable change occurred in the eroded area.