The Clinch is similar size to the Hiwassee in which I fish often. It's also a TVA dam tailwater. On that size river, 3,000 cfs is deadly. Very swift water.
I made the mistake earlier this year of just checking the numbers of generators they were running and not the cfs associated with the numbers. When I got there, it was running 1 generator for an hour then going to 0, then back to 1 and finally 2. That 1 generator wasn't bad at all...I waded it easily and caught a bunch of fish and my biggest fish too. 0 generation is weird....sometimes they bite good and sometimes not. So in my mind I knew in a couple hours they were gonna go back to 1 generator and that it might trigger a feeding frenzy, and that it was very fishable. I put myself in position for that. Unbeknownst to me....when they were running that 1 turbine earlier, it was only 680 cfs. When they turned the 1 generator on again, it was 1,500 cfs flow...and nowhere near what it was with 1 generator earlier. That totally caught me off guard at how swift 1500 can be. I was in the middle before I realized I was in a fix. You can walk in 1500 cfs but it pushes on you really hard. Where it will get you is that you have to constantly brace against the current to keep from getting knocked off your feet. And you can't really pick your feet up like you do when you normally walk so you kinda scoot your feet...if you stumble on a rock or step into a slight divot/hole, it throws your balance off and down you go. That is what happened to me...I stumbled into a rock just enough to knock my balance off while braced against the current and it knocked my legs out from under me. I was 30 yards down in the blink of an eye. The current wouldn't let me get my feet planted back on the bottom...kept dragging me. I had a life jacket on and glad I did because my waders were starting to let ice cold water get in. That water is swift and cold...it can numb your legs quickly without waders...and for sure takes your breath. Remember that ice bucket challenge going around a few yrs ago? Yeah...that same shock. I was lucky to get out with just a scare and loss of some fishing stuff.