This site won't give you all of the information you seek, but it will give you an idea as what to expect. It is a real cool site, and takes a few minutes of reading and scanning to get a handle on it. Check it out. It gives nearly all drainages that aren't controlled by TVA or the Corps of Engineers. I use it when I go smally fishing on some waters and to gauge what is floatable and not on waters that are free flowing streams.