Abstract: The effects of the berm break water on the wave run up are main goal of this research. There are various analysis are carried out in this paper for study the effect of the width, length using Computer-Aided Design (CAD). The wave run up studies over break waters are analyzed by using the navier stokes applications. For numerical computations, the Reynolds Averaged Navier Stokes (RANS) is used. These numerical results are showing the proper estimations of the wave run up over break waters.