This time of year,cutbait...especially shad.
If they vary the outflow of the dam,drift the bait by current breaks near the outlet during an increase.On a decrease,move farther down and fish holes.
As the water cools,flats will group up in the deeper holes in the river section or move to the lake,If you locate them from a boat with electronics,a 1 oz. jig with a 5 inch white grub can work,just don't snag them.
Finding cats in the winter is the hardest part-fishing the outflow of a dam with nightcrawlers will usually get something,even if its not a catfish.