For any non Americans, the largest interstates are one or two digits, divisible by 5. This particular collapse occurred in the Philadelphia metropolitan area.
For any non Americans, the largest interstates are one or two digits, divisible by 5. This particular collapse occurred in the Philadelphia metropolitan area.
Odd-numbered interstates travel north-south, even ones east-west.
Oh and the numbers start in the west and south and get higher the further east and north you go. So the west coast equivalent of I-95 is I-5.