World’s Largest Concrete Railroad Bridge, the Danyang–Kunshan Grand Bridge, a monumental feat of modern civil engineering and the longest concrete railway bridge ever built. Located in Jiangsu Province, the bridge forms a critical part of the Beijing–Shanghai High-Speed Railway, one of the busiest rail corridors in the world.
Stretching an astonishing 164.8 kilometers (102.4 miles), the bridge is constructed primarily from reinforced concrete and elevated pillars, allowing trains to pass smoothly over rivers, canals, roads, farmland, and low-lying flood-prone areas. Its scale and material usage make it the largest concrete railway bridge structure on Earth.
Completed in 2010 and opened to traffic in 2011, the project involved more than 10,000 engineers and workers and used millions of cubic meters of concrete. The elevated design improves safety, reduces land disruption, and enables trains to operate at speeds exceeding 300 km/h.
Beyond its size, the bridge plays a crucial economic role by connecting major industrial and urban centers, significantly cutting travel time between Shanghai and Nanjing. It has become a symbol of China’s rapid advancement in high-speed rail and large-scale infrastructure development.
