As engineering challenges grow more complex, interdisciplinary collaboration has become essential to developing innovative, sustainable, and efficient solutions. This chapter examines the integration of civil, mechanical, environmental, and electrical engineering disciplines, emphasizing the use of MATLAB as a versatile platform to facilitate such collaborations. The chapter presents a range of interdisciplinary applications, from structural health monitoring and thermal analysis of bridges to renewable energy systems and smart city development. By combining expertise across multiple domains, engineers can design infrastructure that is not only functional but also sustainable and resilient in the face of modern societal demands. Case studies demonstrate how MATLAB’s capabilities enable the simulation, analysis, and optimization of projects that involve climate change mitigation, green infrastructure, and renewable energy integration. Practical examples, such as the optimization of waste management systems and traffic signal control using particle swarm optimization, illustrate the benefits of interdisciplinary approaches. This chapter equips engineers with the tools and methodologies to approach complex projects with a holistic perspective, ensuring that technical, environmental, and social considerations are integrated into the design and execution of civil engineering projects.