So far I have not found a state highway that was not suitable for an RV. I'm sure there are some but they are few and far between. If your not in a hurry these are often more interesting to drive than interstates. State and local highways are DW and myself preferred travel, much more to see. We do check them out on our RMcNally GPS first, rather DW checks them out first. She has the hard part, navigator, I just keep it between the lines.
Paul, Kathy, and Tux a 4 month Mini Schnauzer
2014 Tiffin Phaeton 42 LH, 2013 Honda CRV
"When the time comes to look back, make sure you'll like what you see"