When all is "normal" you can launch an aluminum boat at 380. Easy ramp. 428 is too difficult as you need to walk it down stairs. It's possible, but difficult. I have seen it done many times at 380. Log jams will be your issue throughout. Just be sure to bring a paddle or push pole to help you get through them.
I have made the paddle from the lake. I believe I launched from Shady shorr, or maybe called sandy Shores. Not a bad paddle, but many shallow spots with stumps. Lots of debris at the mouth including 2 old trucks. Haven't been in that area since the flooding so it may be impossible.
If you have a kayak, launch from 428 and go upriver. As of a few months ago, the fishing was great! !