A highway bridge at 7 ft., 7 in. -- what could go wrong?

Truck and RV specific GPS units are great at keeping you away from low clearances and other gotchas for high, wide, and combination vehicles. The units typically are aware of low clearances, narrow roads, steep grades, tight turns, road restrictions, etc. It's a pretty valuable tool when traveling in the northeast especially when you're unfamiliar with the region. It's also pretty handy when driving in cities across the country.