$23524612246$ What fundamental theories form the theoretical foundation of civil engineering, shaping the design and construction of infrastructure and buildings? Concepts such as structural mechanics, soil mechanics, and fluid mechanics provide insights into the behavior of materials and systems under various loads and environmental conditions. How do these theoretical frameworks guide the planning and execution of projects, ensuring their safety, durability, and efficiency? Explore the integration of theory and practice in civil engineering, driving advancements in urban development and infrastructure resilience.