The civil engineering department teaches students how to plan, design, and construct major facilities including highways, transit systems, dams, tunnels, energy facilities, harbors, canals, buildings, and bridges. Civil engineering students are taught to manage our air, water, and energy resources and help protect society from natural catastrophes, such as earthquakes, as well as dealing with the hazards society itself generates in the form of toxic wastes. A civil engineering student requires not only a high standard of engineering knowledge but also taught supervisory and administrative skills. The planning part of their work involves site investigation, feasibility studies, creating solutions to complications that may occur and the actual designing of structures. They have to work with the guidelines of the local government authority and get plans approved by the relevant authority. They are taught to prepare cost estimates and set construction schedules. The major specialisations within civil engineering are structural, water resources, environmental, construction, transportation, geo-technical engineering etc.