Thinking of a USA road trip this summer? Good for you! But one caveat: there are some crappy trails out there, especially nowadays with anti-tax sentiment making a the phenomenon of crumbling infrastructure even worse in many places. Each spring, cities, towns and states take stock with an eye toward repairs. We've had a look at some of these studies, and if you're planning to hit the roads, you might want to know which (sometimes surprising) states to watch out for... keep reading