Infrastructure construction, including bridges, overpasses, and interchanges, is essential for improving transportation networks, reducing congestion, and enhancing economic growth. These projects require substantial investment in materials, labour, and equipment. For contractors, securing commercial financing and managing working capital efficiently is crucial to maintaining project timelines, ensuring profitability, and mitigating risks. This paper explores financing options available to infrastructure contractors, discusses the importance of working capital management, and presents four U.S. case studies illustrating successful financing strategies.