List of state routes in Tennessee
It has been suggested that List of state routes in Tennessee shorter than one mile be merged into this article. (Discuss) Proposed since November 2019.
The Tennessee state routes do not follow a systematic numbering system unlike the U.S. Highway System and some other states' highway systems. The routes are separated into primary and secondary routes though. Many of the routes are hidden in that they are overlaid on U.S. Routes and not signed. The mile markers throughout the Tennessee, however, show the state route number for these hidden routes.
Primary and secondary state routes
|Maintained by TDOT|
|Interstates||Interstate XX (I-XX)|
|US Highways||U.S. Route XX (US XX)|
|State||State Route XX (SR XX)|
The Tennessee Department of Transportation (TDOT) maintains these routes under the "State Highways" title of state law, but designates them as "state routes". The triangle design (to the right) was the primary design until 1982, when Tennessee divided its routes into primary and secondary routes.
- (PDF) https://www.tn.gov/content/dam/tn/tdot/documents/1986_road_program.pdf. Missing or empty