Dujiangyan Irrigation System
Dujiangyan (Chinese: 都江堰; pinyin: Dūjiāngyàn) is an irrigation infrastructure built in 256 BC during the Warring States Period of China by the Kingdom of Qin. It is located in the Min River (Chinese: 岷江; pinyin: Mínjiāng) in Sichuan province, China, near the capital Chengdu. It is still in use today to irrigate over 5,300 square kilometers of land in the region. The Dujiangyan along with the Zhengguo Canal in Shaanxi Province and the Lingqu Canal in Guangxi Province are known as “The three great hydraulic engineering projects of the Qin Dynasty”.
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