There are a number of different road designations in the United States, from highways and freeways to interstates and routes, and it can cause some confusion with different laws and regulations.

Here's what to know about a state study that looked into the pros and cons of making U.S. Highway 287 into an interstate.

The US Interstate That Goes Nowhere When the interstate system was founded in 1956, there was an original map created, sending Interstates to all the most important routes between large American ...