"How do foundational theories in civil engineering, such as structural mechanics, fluid dynamics, and geotechnical engineering, inform the design and analysis of infrastructure projects? Discuss the role of theoretical frameworks in understanding the behavior of materials, structures, and environmental systems. How do advancements in theoretical models, computational methods, and experimental techniques contribute to the development of innovative solutions for challenges in construction, transportation, and environmental engineering? Explore the interdisciplinary nature of civil engineering theory, its applications in addressing societal needs, and the potential for theoretical advancements to drive sustainable development and resilience in infrastructure design and management."