Civil engineering is a branch of engineering that deals with the design, construction, and maintenance of the physical and naturally built environment. It encompasses a wide range of activities, including the design and construction of buildings, roads, bridges, dams, airports, water supply systems, wastewater treatment plants, and many other types of infrastructure.

Civil engineers are responsible for ensuring the safety, functionality, and sustainability of these structures and systems. They use their expertise in mathematics, physics, geotechnical engineering, structural analysis, and materials science to design and analyze structures, determine appropriate construction methods, and oversee construction projects.