Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Dujiang Weir

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_553

This was formerly known as the Du’an Weir and Jian Weir, and it was named the Dujiang Weir after the Song Dynasty. It was located to the west of Dujiang City, 59 km from Chengdu, and was an ancient dam-free water diversion project for the Minjiang River. The construction began in 256 A.D. and was supervised by Li Bing and his son. The main project included using bamboo cages to hold river pebbles to build a fish mouth-like dyke to divert the Minjiang River into an inner channel and an outer channel as well as the excavation of the Yulei Mound along the inner channel bank into the 20-m-wide Baoping (Precious Bottle) Mouth. Making use of the difference in water level, these works diverted the Minjiang River water through the Baoping Mouth into the Chengdu Plain for irrigation. In addition, the Feisha (Flying Sand) Dyke was built between the fish mouth dyke and the Baoping Mouth for flood water control and sand discharge. These works form a self-running water diversion, flood discharge...

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