Before revision: 300px|Tennessee Valley Authority civil engineers monitoring hydraulics of a scale model of Tellico Dam 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, sewage systems, pipelines, structural components of buildings, and railways .
After revision: 300px|Tennessee Valley Authority civil engineers monitoring hydraulics of a scale model of Tellico Dam 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, sewage systems, pipelines, structural components of buildings, railways, and tunnels .