$1`32\mathrm{.}35$ What foundational theories serve as the bedrock for civil engineering? From the principles of structural mechanics to material science, which theories form the cornerstone of designing and constructing infrastructure? How do concepts like fluid dynamics, geotechnical engineering, and environmental science contribute to the theoretical framework of civil engineering? Explore how these theories underpin various aspects of civil engineering, from the design of bridges and buildings to the management of water resources and transportation systems.