Civil Engineering is a professional engineering discipline that deals with the design, construction and maintenance of the physical and naturally but environment,including works such as bridges, roads, canals, dams and buildings. Civil Engineering is the oldest engineering discipline after military engineering, and it was defined to distinguish non-military engineering from military engineering. It is traditionally broken into several sub-disciplines including environmental engineering,geotechnical engineering,structural engineering,transportation engineering,municipal or urban engineering, water resources engineering, materials engineerings, coastal engineerings, surveying and construction engineering.Civil Engineering takes place on all levels in the public sector from municipal through to federal levels and in the private sectors from individual houseowners to international companies.