Rand McNally, Garmin, TomTom, RV GPS, Kick the Hornets Nest

The trick is that there's a 12'3" clearance bridge on TX-63/LA-8 at the Sabine River. Garmin has it, lowclearances.com does not, and AITA has it at 12'1". My Basecamp set at 13' routes around it. I don't know what Google would do.

A gripe about Garmin and Basecamp is that while it'll route around such obstacles it won't tell you why; it'll just refuse to go there. I confirm via Google Earth and sometimes confirm that there's no obstacle on the route I want but it's a block over.