As long as you don't go ashore, you should be ok. The river and riverbed are not owned by the adjacent landowner. It's different out west in some states. Wyoming, for example, you can drift the rivers but can't anchor or wade. Touching the bottom is trespassing out there.
I've got gas and I've got crabs. You wanna go out?
"Well, the trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.� - Ronald Reagan
"Be who you are and say what you feel because those who mind don't matter and those who matter don't mind." - Dr. Seuss