Massachusetts to east coast florida

Going near New York city with an RV could be scary if you take the wrong hihgway. Some bridge are very expensive too, especially if you tow. There are many low overpass, if you see "car only" DO NOT get on. I ended up on the Bronx Parkway and there was a 9 feet overpass sign, all the traffic stopped, 4 lines I think. I was able to go under the middle of the overpass. I took the next exit and ended up in the Bronx at night with a 14 foot trailer in tow, there are many 11 feet overpass there too and many tight street.

I think the safest is going with 84.