The longest bridge in the world is the Danyang–Kunshan Grand Bridge, located in China. It spans approximately 164.8 kilometers (102.4 miles) and is part of the Beijing–Shanghai High-Speed Railway. This bridge was completed in 2010 and officially opened in 2011. Its construction showcases remarkable engineering and design, enabling high-speed trains to traverse wetlands, rice paddies, and urban areas. The bridge addresses transportation needs in one of China’s most populous regions, significantly reducing travel times and contributing to economic development in the area.