Lots of rain lately…like record rain since they've been keeping records…more on the way.
A lot of the other dams are getting full also. Still some room left at 3 gorges, but not much and if the rumors are true, the workers say it makes scary loud noises inside when it gets anywhere close to full. So, they don't.
Site in Chinese, sorry but finding current data on Chinese dams isn't the easiest thing we do.
https://y-o0.github.io/damdata/