2 articles
Dujiangyan (都江堰)
Dujiangyan (都江堰), also known as the Dujiangyan Irrigation System, is an ancient damless irrigation system in Sichuan, China, begun around 256 BC by Li Bing and still in use.
Tashan Weir (它山堰)
Tashan Weir (它山堰), also called Tuoshan Weir or Tuoshanyan, is a Tang dynasty stone weir on the Yinjiang River in Ningbo, Zhejiang, built in 833 AD to block saline tides and store fresh water.