62 upstream dams were broken before Banqiao dam failed. No dam in the world is capable to stop 15 700 000 000 000 tonnes of water. The flood was catastrophic an

62 upstream dams were broken before Banqiao dam failed. No dam in the world is capable to stop 15 700 000 000 000 tonnes of water. The flood was catastrophic anyway. The primary responsibility of Banqiao dam is to control flood. Power generation was secondary.