Is there any rhyme or reason to how U.S. interstate highways are numbered?

Browse the article Is there any rhyme or reason to how U.S. interstate highways are numbered?

Forward this article to five of your friends.

Your Name:

Your E-mail:

Friend #1 E-mail:

Friend #2 E-mail:

Friend #3 E-mail:

Friend #4 E-mail:

Friend #5 E-mail:

Your Message:




Please enter the characters you see above:
This helps HowStuffWorks prevent automated emails.