Tennessee State Route System
The State Route System of Tennessee is maintained and developed by the Tennessee Department of Transportation (TDOT) US state of Tennessee. Currently the state has 14,150 miles (22,770 km) of state-maintained roadways, including 1,073 miles (1,727 km) of Interstate Highways and 13,077 miles (21,045 km) of State Highways.[1] All of the U.S. Routes in Tennessee have a state route routed concurrently with them, though the state route is hidden and only signed along the green mile marker signs that display mileage within each county. Since 1983, state routes have been divided into primary and secondary routes.
    Interstate, US Route, and Primary/Secondary State Routes | |
| System information | |
|---|---|
| Maintained by TDOT | |
| Length | 14,150 mi[1] (22,770 km) |
| Highway names | |
| Interstates | Interstate XX (I-XX) |
| US Highways | U.S. Route XX (US XX) |
| State | State Route XX (SR XX) |
| System links | |
See also
- List of state routes in Tennessee
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