You should be OK in Columbia. It won’t be a picnic but if you didn’t get flooded out in the past few years, most likely you won’t this time.
Good to hear things are stabilizing for you.
I’m not that worried about floods in my area. No one around me seems concerned. There is a civil engineer next door and I have yet to see him take any kind of action.
Not that I’m a nosy neighbor, which I’m not but I do pay attention to what’s around me.