| Interstate Highways of the Florida State Highway System | |
|---|---|
   Markers in use for Interstate Highways in Florida | |
 Interstate Highways highlighted in red | |
| System information | |
| Length | 1,497.58 mi[1] (2,410.12 km) |
| Formed | June 29, 1956[2] |
| Highway names | |
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | State Road X (SR X) |
| System links | |
The Interstate Highways in the state of Florida are owned and maintained by the Florida Department of Transportation (FDOT).[3] There are four primary interstate highways and eight auxiliary highways, with a ninth proposed, totaling 1,497.58 miles (2,410.12 km) interstate miles in Florida. The longest interstate is I-75, extending 470.678 miles (757.483 km), and the shortest is I-395, extending just 1.292 miles (2.079 km).[4]
- ^ Adderly, Kevin (January 27, 2016). "Table 3: Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico". Route Log and Finder List. Federal Highway Administration. Retrieved January 28, 2017.
- ^ *McNichol, Dan (2006). The Roads that Built America. New York: Sterling. p. 106. ISBN 1-4027-3468-9. OCLC 63377558.
- ^ "Transportation Data and Analytics Office". Florida Department of Transportation. September 4, 2018. Retrieved September 25, 2018.
- ^ Florida Department of Transportation (July 2012). "Interchange Report" (PDF). Florida Department of Transportation. pp. 1–11. Archived from the original (PDF) on February 8, 2012. Retrieved January 17, 2014.