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How can civil engineers leverage theoretical frameworks to enhance infrastructure design, construction, and management? Consider the integration of principles from structural mechanics, fluid dynamics, geotechnical engineering, and materials science. How do theoretical models inform decision$-$making processes, such as selecting optimal materials, predicting structural behavior under various loads, and optimizing construction techniques for durability and sustainability? Furthermore, how can theoretical understanding aid in risk assessment and mitigation strategies, particularly in the face of environmental challenges like climate change and natural disasters? Explore the interdisciplinary nature of theoretical foundations in civil engineering and their practical applications in ensuring resilient and efficient infrastructure systems.