Dujiangyan project locates on Minjiang River in the west of Chengdu Plain, to the west of DujiangYan city of Chengdu. This hydro-power project was built in 256BC, and it's the earliest, the only existing and featured with "Water diversion without dam" project in the world record.
The project was originally composed of three main structures as Yuzui Water-cut Dike, Feishayan Spillways and Baopingkou diversion mouth, and two ancillary works as Baizhang dike and Renzi dike. It scientifically solved the problems as automatic water cut, automatic sand distill and water-flowing control etc. which helped to eliminate the flood disaster of West Sichuan Plain, thus turned it a piece of nourished and fertile land. It's playing an important role in the flood control and irrigation work for more than 2000 years.
Yuzui Water-cut Dike was built in the center of the river, which divided Minjiang River into the inner river for irrigation and outer river for flood control; Feishayan was used to discharge flood, sand distill and regulating water flow; Baopingkou was used to control water inflow, as its shape looks like a bottle neck, thus the name Baopingkou (Bottle neck in Chinese).
Dujiangyan project made fully use of the geographical advantage of the local conditions like the higher northwest and lower southeast. The dike, water separation, flood discharge, sediment, flow control interdependently, forming a total system to ensure that the full play of flood control, irrigation and the social benefits of the water. Sichuan has great economic and cultural development. The greatness of its huge development is the building of the dam and its benefits brought. Dujiangyan was built in the premises that not destroying the natural resources and making full use of the natural resources to serve the human beings thus turned the waste into the benefits, forming a high degree of harmonization of the people, land and water.
Dujiangyan is also a famous and beautiful scenic area with many scenic spots, thus turned it into an ideal tourist destination. There are Two Kings Temple, Hidden Dragon monastery, An'lan steel bridge etc.
Not far from the Dujiang Dam, a Daoist temple complex was erected to commemorate the benevolent rule of Li Bing and his son who succeeded him. Li Bing and his son were granted the posthumous title of Wang, which means King in Chinese, The folk story says that July 24of the Chinese Lunar Calendar is Li Bing' birthday. On the day many local people visit the temple where they prostrate themselves before the image of Li Bing and his son and burn incense to honor them. The larger-than-life painted statues of father and son overlook the rushing river below. Nearby a stone tablet os engraved with a famous six-character quotation from Li Bing, "when the river flows in zigzags, cut a straight channel. When the riverbed is wide and shallow, dig it deeper." The temple which is built near the mountaintop is a popular stopping place for sightseers. There one can enjoy a unique view of the most modern parts of the water conservation project.
Hidden Dragon monastery was built inside the Lidui Park; Legend has that Libing used to suppress the evil dragon here, thus the name.
An'lan steel bridge was also named as "wife and husband bridge", which was ranked as one of the ancient five bridges in China, and the most impressive and characteristic scenic spot in DujiangYan touring area. With a length of 500 meters, it was destroyed once in Ming Dynasty and now it's totally rebuilt with steel chains and Ferroconcrete Bridge stands.
DujiangYan also survived the big earthquake happened in Sichuan on May.12th.2008 with just a few temples damaged a little. AS a masterpiece project, it will continue to play the important role and benefit people in the future.