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   Primary State Routes / Secondary State Routes |
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| State: | State Route XX (SR-XX) |
|---|---|
| Interstates: | See Main Article |
| US Routes: | See Main Article |
| Notes: | maintained by TDOT |
This is the list of Tennessee state routes. Unlike the U.S. Highway system and some other states' highway systems, Tennessee's highways do not follow a systematic numbering system. 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 state, however, show the state route number for these hidden routes.
- Note 1: The Tennessee Department of Transportation maintains these routes under the "State Highways" title of state law, but designates them as "state routes".
- Note 2: The triangle design (above) was the primary design until 1982, when Tennessee divided its routes into primary and secondary routes.
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