The coastline of the Nile Delta extends between Alexandria and Port Said and spans approximately 240 km. It experienced accelerated erosion since the construction of Aswan High Dam (AHD) where more than 1.2 billion EGP were spent to mitigate the imbalance in sediment transport patterns as AHD blocks most of the sediments reaching the Mediterranean coast. The current study investigates various combinations of interventions to mitigate the complex situation around natural and artificial tidal inlets namely Rosetta promontory and El-Burullus fishing harbor inlet. After various previous interventions in both sites, the problem of structures stability, inlets closure, and erosion in the nearby beaches still exists. The study will utilize already developed, calibrated and field validated morphodynamic models for the two areas of interest. Out of the past and present tested scenarios, the study comes up with the optimum combination of interventions at the two inlets. For Rosetta promontory, the third scenario (one-kilometer jetty in the western direction, a 0.4 kilometer one at the eastern direction, another three groins at the eastern direction, and two groins at the western direction) has the least net sedimentation volume at the inlet (2206.58 m³) and the least change in depth at the critical sections. On the other hand, the simulations indicated that SC3 (extension (90 m) of west jetty + 5 east 200 m groins + 2 west groins (200 m)) produced ideal results in terms of the El-Burullus harbor entrance siltation, the erosion in front of seawall and the accretion at the west of breakwater; However, it caused some slight erosion at the shoreline west of the breakwater. The successful concluded results of this study could be adopted with appropriate modifications for other Deltas worldwide.

尼罗河三角洲的海岸线在亚历山大港和塞得港之间延伸，全长约 240 公里。自从阿斯旺高坝 (AHD) 建成以来，它经历了加速侵蚀，其中花费了超过 12 亿埃及镑来缓解沉积物运输模式的不平衡，因为 AHD 阻止了大部分到达地中海沿岸的沉积物。目前的研究调查了各种干预措施组合，以减轻自然和人工潮汐入口（即罗塞塔海角和 El-Burullus 渔港入口）周围的复杂情况。在这两个地点之前的各种干预之后，附近海滩的结构稳定性、入口关闭和侵蚀问题仍然存在。该研究将利用已经开发、校准和现场验证的形态动力学模型用于两个感兴趣的领域。在过去和现在的测试场景中，该研究提出了两个入口的最佳干预组合。对于 Rosetta 海角，第三种情景（西向 1 公里码头，东向 0.4 公里一个，东向另外三个腹股沟，西向两个腹股沟）的净沉降量最小。入口 (2206.58 m³ ) 并且在关键部分的深度变化最小。另一方面，模拟结果表明 SC3（西码头延伸部分（90 m）+ 5 东 200 m 腹股沟 + 2 西腹股沟（200 m））在 El-Burullus 港口入口淤积、侵蚀方面产生了理想的结果海堤前及防波堤西侧的堆积物；然而，它对防波堤以西的海岸线造成了一些轻微的侵蚀。这项研究的成功结论可以通过对全球其他 Delta 进行适当修改来采用。