The three Gorges Dam is the biggest dam in the world. It stops Changjiang flooding. That means the people who live near Changjiang are safe now.
It is because when Changjiang overflowed, it causes many people drowning. There were many people trying to lead Changjiang in our history, but they never succeed.
Although the Three Gorges solves the flooding problem, many historic sites disappeared, such as, Fengdu city. In my opinion, I think that when the Chinese government wanted to build the Dem at that time, the government should protect the historic sites first. Also, many people who live near the river, need to leave their hometown forever. So, the government should help the people to find their new home.