Pingnan Third Bridge

About

The Pingnan Third Bridge (pinyin: Píngnán Sānqiáo), internationally known as Pingnan Third Bridge, is a road bridge that crosses the Xun River, a section of the Xi River (which later flows into the Pearl River). It is part of the new western bypass of Pingnan in the Guangxi province of the People's Republic of China. The bridge, with a total length of 1035 m, carries four lanes of traffic with emergency lanes and sidewalks on both sides. It consists of a 170 m long approach bridge on the south bank, a CFST arch bridge with a main span of 575 m, and a 280 m long approach bridge on the north bank. As of 2025, with its main span of 575 m, it is the world's second-largest arch bridge after the Tian'e-Longtan Bridge (600 m span) was inaugurated in 2024. It is larger than the Chaotianmen Bridge (552 m span), which previously topped the list of largest arch bridges, and significantly surpasses the Bosideng Bridge, which, with a span of 530 m, was previously the largest CFST arch bridge. Its large, red arch is 34.3 m wide and consists of two arch ribs connected and stiffened by wind bracing. The sidewalks are routed outside the arch. Each arch rib is made of four steel tubes with a diameter of 140 cm, which are connected transversely with 85 cm diameter tubes and vertically with 70 cm diameter tubes. The ribs are 4.20 m wide, and their structural depth decreases from 17 m at

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.