When was Dujiangyan built?

Dujiangyan was built in the Warring States Period.

According to the data, Dujiangyan water conservancy project was listed in the world irrigation project heritage list in 20 18. In 256 BC, during the Warring States Period, the Dujiangyan water conservancy project led by Li Bing, the prefect of Shu County of Qin State, was located on the Minjiang River on the west side of Dujiangyan City in the west of Chengdu Plain, Sichuan Province, 56 kilometers away from Chengdu.

Large-scale water conservancy projects are still irrigating farmland, which is a great water conservancy project that benefits the people. It is characterized by long time and no dam to divert water, and it is the originator of world water conservancy culture. The project is mainly composed of Yuzui diversion dike, Sha Fei weir spillway, Baojiangkou water intake, Baizhang dike, herringbone dike and other ancillary works, which scientifically solves the problems of automatic river diversion, automatic sediment discharge and water control, and eliminates floods.

Introduction to Dujiangyan environment

Dujiangyan irrigation area is the most economically developed area in Sichuan Province, and it is also the political, economic and cultural center of Sichuan. "Rich products, outstanding people and outstanding land", has the reputation of "land of abundance" in history. The natural landscape, human landscape, urban brilliance and urban scenery of the irrigation area are colorful and beautiful.

Irrigation and water conservancy, dotted with charm, each with its own characteristics, is pleasing to the eye. "People's Canal, Dongfeng Canal, Sanhe Weir, Tongji Weir, clear water swings; Black Dragon Beach, Sancha Lake and luban reservoir, the lake is sparkling; Longquan runs through, the sky is open, and the water is flowing. The whole irrigation area presents a "long dragon walking on the ground and the milky way flowing in the sky;" "The rainbow rises from the deep valley and the high gorge rises from Pinghu.

Reference to the above content: Baidu Encyclopedia-Dujiangyan Water Conservancy Project