| State Route 340 | |
|---|---|
| Route information | |
| Maintained by TDOT | |
| Length: | 25.9 mi (41.7 km) |
| Major junctions | |
| South end: |
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| North end: |
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| Location | |
| Counties: | Cocke, Greene, Hamblen |
| Highway system | |
State Route 340 (SR-340) is a state highway in the eastern portion of the U.S. state of Tennessee. It travels south-to-north through portions of Cocke, Greene and Hamblen counties.