For the construction of coastal structures, it is imperative to utilize engineered embankments to establish a platform with high and uniform stiffness modulus, effective drainage capability, and to prevent capillary rise of moisture into the building. The selection of lithic materials with appropriate lithology, gradation, and particle size distribution is crucial for optimal performance and resistance to static loads and aggressive environmental conditions throughout the structure’s service life. The integrity of aggregates is particularly critical in coastal areas due to weathering, sulfate attack, and environmental conditions such as saline water and tidal actions. The degradation of aggregates can lead to the loss of structural integrity and stability of the embankment Currently, there is a significant threat to engineered embankments constructed for residential and industrial complexes along the southern coasts. Field and laboratory investigations can provide valuable insights into the properties and behavior of aggregates under various environmental conditions. The objectives of this case study include examining and evaluating the performance of different lithologies in engineered embankments on the coast of Bushehr Port, assessing the current state of engineered embankments in terms of the materials used and evaluating the types of potential failures, proposing the applicability of existing valid criteria, and assessing the current state of engineered embankments in the 530-hectare area of Bushehr Port as a target area, and predicting future geotechnical hazards for constructions in this area Samples were taken from each engineered embankment in different zones, including submerged, intertidal, and splash zones. In this research, samples were taken from engineered embankments and coastal protection structures, and 70 samples from various parts of the embankment body were prepared in two categories: intact and deteriorated samples. Aggregates weighing approxim