Road Recommended by Good Sam and Completely Unpassable

my Streets and trips sure didn't route me on 434. on S&T 434 sure looks like a road I would avoid.

followed some of 434 in street view google world, the first clue a potential issue was a tube type cattle gate, a large yellow sign saying "thank you" and two phone numbers?? a sign notice all vehicles over 10 ft wide prohibited, but since that was filmed in 08 could be lots of changes.
bumpy