Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, structural components of buildings, and railways.Civil engineers play an extremely important role in the society. They are responsible for maintaining the overall safety of society in a number of ways including rural engineering. From constructing highways and buildings to bridges and tunnels, the responsibilities of civil engineers are many.