Masonry arch bridges are important infrastructure facilities serving the world from ancient era to present era. There is a huge difference between the actual design capacity and actual applied load on masonry bridges. Quality of bridge material deteriorated with time, due to heavy load applied on it and due to weathering process. Due to deterioration of these bridges, so it is absolutely essential that all such bridges are structurally inspected. And there is no generic technique for this, but various non linear analyses had been achieved. This paper is all about the defects that are generally occurs in masonry bridges. The chosen of nodes in Finite element method is also studied. Those bridges are designed on the idea of traditional strategies, so deep analysis of these bridges may be very necessary. Information related to Parameters of masonry bridges like Failure mechanisms, maximum carrying capacity of masonry arch bridges are studied with the help of modeling. This paper includes the outcomes of numerous parameters in modeling like locations of nodes, the way that the arch barrels fails, assessment technique, finally modeling is done with the help of finite element base Software.