An independent study ranked among the 10 worst highways in the United States. The Florida Department of Transportation dismissed the study. University of North Carolina at Charlotte professor David Hartgen ranked highway systems in 12 categories, including traffic fatalities, congestion and the amount of money spent on roads in 2006 compared to the number of road miles in a state. The study has been questioned by the Florida Department of Transportation and other officials. You can read more about the study at Florida Roads Bad on Congestion and Fatalities Again.