Baini Weirs

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Baini Weirs, including the Shijian Weir and the Yuanbei Weir, are located in
Chongyang County, Hubei Province of China. According to the historical records, the Shijian Weir was constructed no later than AD 931, and the Yuanbei Weir was constructed no later than 1226, both with a history of over 1,000 years. Up to now, the two weirs have been playing a role in irritation, flood control, drought relief, water supply, and etc. With an irritated area of over 2,300 ha , they are the representatives of large masonry water conservancy projects in ancient China.