When fishing water with current, I like to look for current seams/breaks. You will find that current seams/breaks usually occur where there is something in the water to disrupt or redirect the normal path of the water flow.
Since catfish are opportunistic feeders, they will often place themselves just inside the current seam/break where the current is slower and wait for an easy meal to come floating by.
Bumping bottom or controlled drifting are usually the preferred presentation but anchoring just above your target and casting out along the seam/break can produce good results as well.
