Right now will be tough right below the dam. You really need a generator going to get the water up enough for a successful launch and recovery (depending on your boat, of course). I would put in down around Burkesville. Be very carefull of shallow water on that river, props are $$$!
There is a good ramp at the dam, and the river is plenty wide. But the launch area is shallow and it is very shallow between the ramp and the dam. If you get your boat in, cross the river and stay on that side while you go downstream to stay in the channel.