The City of Charleston, which is located on the US East Coast in the state of South Carolina, has embarked on a landmark project to redesign and rebuild the concrete seawall along the City’s historic Low Battery waterfront. In fact, the original structure, which was built between 1909 and 1919, was in need of extensive repairs. The objectives of the project are to provide longevity and resiliency against rising sea levels, and improve the accessibility of the historic waterfront. The project started in 2019 and its final phase is expected to be completed in mid 2025. A defining feature of the project is the use of glass fiber-reinforced polymer (GFRP) bars instead of steel bars as concrete reinforcement as a means to resolve pressing concerns about corrosion, which is notoriously the major instrument of degradation of reinforced concrete (RC) that is exposed to saltwater. This paper showcases this project by offering an overview of the scope of work, the structural design and detailing of the selected GFRP RC option vis-à-vis the steel RC counterpart also with respect to first cost and constructability, which played a key role in the City’s decision-making in this first large-scale GFRP RC public infrastructure project in South Carolina.