Always some current but as long as you wait for floods to clear it should be doable. Near Mobile, you can play the tides for a boost but eventually, that goes away. As you near a lock, the current will tend to be faster but will be negligible just above the lock.
You will need a range in excess of 150miles as there is one stretch that long without fuel
. There are places you can anchor
though. Your actual range will need to account for your cruise
speed minus the current. (ie: if your cruise
speed is 5kts and the current is running 1kt, your range will be 20% less than normal)
There is regualar barge traffic (more than 1 per day). Make sure you have a working VHF
. They are generally good guys and will look out for you but they get to decide where you go upon meeting. A 3x5 tow (pretty common size) is around 1150' long by 100' wide running on a river that may only be 400-500' wide. You don't want to come upon them unexpectedly as you round a hairpin curve and you are right where they NEED to go. You don't need to be afraid of barge traffic but you must respect it.
Two major considerations before I would take off:
- Is the engine
- What is your range?