Civil Engineering is the professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including works such as roads, bridges, canals, dams and buildings. It is a branch of engineering that applies scientific principles to design structures that are safe and efficient. The abbreviation for Civil Engineering is CE. Civil engineers plan, design and oversee construction projects such as highways, bridges, airports, water supply systems and wastewater treatment facilities. They also analyze survey reports to determine the best location for new structures or make recommendations on how existing structures should be modified or maintained.