Abbas Yeganeh-Bakhtiary - School of Civil Engineering, IUST, Tehran, Iran
Mahdi Ebrahimpur - Graduate student, School of Civil Engineering, IUST, Tehran, Iran
Fatemeh Hajivalie - Ocean Engineering and Technology Research Center, Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Tehran, Iran

Changing the natural conditions of the coasts influenced by the port constructions and the longshore sediment transport is one of the main reasons for the erosion phenomena on Amir-Abad coast [1]. Due to the construction of Amir Abad port, the coast of this area has been out of balance and stability; the updrift port’s breakwater interrupts the longshore sediment transport, which induced a massive erosion at the downdrift side of Port [2]. The main objective of this study is to propose three protection alternative to resolve the coastal erosion problem on the eastern part of Amir Abad port. Then, the performance of the proposed alternatives has been investigated numerical by using the MIKE 21.