Study of the Basic Parameters in the Design and Construction of Bridge Overpass in the River

A permanent drainage on the lower reaches of the dam with occasional rainstorms has caused rising water and flooding of the river and always faces the access routes. Over the years, the river has caused flood, traffic obstruction and The river flow has changed. In this research, using field and study methods, it has been attempted to examine this issue with a basic approach. The purpose of designing a suitable hydraulic structure and constructing it at the target point is to considerably increase the outcomes of the river flood and the consequences of the flood. Reduced, evaluated. Therefore, considering the sensitivity of the subject in the design of the structure and considering the hydraulic and hydrological parameters, we can conclude that the application of this drainage structure has been able to control the zoning of flood in the area and, in addition, it is a suitable bedding for people and Vehicles in the long run.