Civil engineers work on the design, construction, and maintenance of the infrastructure systems we use every day andor in surveying and coastal subsidence projects. Sub-disciplines include: mechanics of materials (steel, concrete, timber, pavement etc.), structures (bridges, buildings, etc.), water resources (rivers, levees, etc.), transportation (traffic systems, highways, and roadways), geotechnical (soils, foundations, and coastal subsidence), and geodesy (surveying). Graduates may work for structural design firms or the petrochemical industry, but often work for government entities such as the Department of Transportation or U.S. Army Corp of Engineers.