Guangji Bridge (simplified Chinese: 广济桥; traditional Chinese: 廣濟橋; pinyin: Guǎng Jì Qiáo; literally "Great Charity Bridge"), also known as Xiangzi Bridge (simplified Chinese: 湘子桥; traditional Chinese: 湘子橋; pinyin: Xiāng Zǐ Qiáo) is an ancient bridge that crosses the Han River in Chaozhou, Guangdong province, China. A key cultural relic under national protection, the bridge is renowned as one of China's four famous ancient bridges; the other three are the Zhaozhou Bridge, the Luoyang Bridge and the Lugou Bridge.
The Guangji was originally a pontoon bridge built in AD 1170 during the Southern Song Dynasty with a length of 518 metres (1,699 ft). Later, construction of piers and framework started from both banks of the river on which it was moored, and 200 years later the current form of the bridge, with a floating section supported by 18 wooden pontoons between two beamed sections, was completed. The floating section can be disconnected for the passage of large boats, an innovation that set a precedent in bridge-building history.
There are two iron cows standing at both ends of the bridge, in the hope of protecting the bridge from the flood damage. Its two beamed sections resemble waterside streets, with a distinct pavilion and tower on each of its 24 piers.