List of Interstate Highways in Utah
The Interstate Highways in Utah are maintained by the Utah Department of Transportation (UDOT). The Interstate Highway System is a nationwide system with only a small portion of these routes entering Utah. Originally, the State Road Commission of Utah, created on March 23, 1909 was responsible for maintenance, but these duties were rolled into the new UDOT in 1975. There are of Interstates within the state. The longest is Interstate 15 (I-15) at and the shortest is I-215 at . One unique former route is Interstate 415, which was never signed as such, and was only used as a temporary designation for the eastern portion of what is now the Interstate 215 belt loop around Salt Lake City.
U.S. Route 13 in North Carolina
The section of U.S. Route 13 (US 13) in North Carolina is the longest, home to of its length. It runs southwest to northeast through eastern North Carolina, beginning at Interstate 95. Most of the routing is rural, serving only three cities of considerable size along the entire route; the rest passes through forests and farmland. US 13 is usually only two lanes wide unless it is co-signed with other highways, usually near cities as bypasses.