China is replacing some of its older dams. Many were hastily built during The Great Leap Forward, with more emphasis on rapid completion than quality and safety

China is replacing some of its older dams. Many were hastily built during The Great Leap Forward, with more emphasis on rapid completion than quality and safety. There were dam failures, some with huge loss of life. https://en.m.wikipedia.org/wiki/1975_Banqiao_Dam_failure https://en.m.wikipedia.org/wiki/1975_Banqiao_Dam_failure A new dam is built alongside, then the old one dismantled. For example, the Fengman Dam on the Songhua in N.E. China was originally built during the Japanese occupation of Manchuria: https://en.m.wikipedia.org/wiki/Fengman_Dam#New_Dam https://en.m.wikipedia.org/wiki/Fengman_Dam#New_Dam http://www.xinhuanet.com/english/2018-12/12/c_137668907.htm http://www.xinhuanet.com/english/2018-12/12/c_137668907.htm