Interstate Highways
| Shield | Route Number | Length | Starting Terminus | Direction | Ending Terminus |
|---|---|---|---|---|---|
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| Interstate 24 | 180.16 mi (289.9 km) | I-24 (Kentucky State Line) -- Clarksville | west to east | I-75 – Chattanooga | |
| Interstate 26 | 54.5 mi (87.7 km) | US-23 / US-11W – Kingsport | west to east | I-26 / US 23 (North Carolina State Line) in Unicoi County | |
| Interstate 40 | 455.28 mi (732.7 km) | I-40 (Arkansas State Line) -- Memphis | west to east | I-40 (North Carolina State Line) near Hartford | |
| Interstate 55 | 12.28 mi (19.8 km) | I-55 (Mississippi State Line) -- Memphis | south to north | I-55/ U.S. 61 / U.S. 64 / U.S. 70 / U.S. 79 (AR State Line) -- Memphis | |
| Interstate 65 | 121.71 mi (195.9 km) | I-65 / US-31 (Alabama State Line) -- Ardmore | south to north | I-65 (Kentucky State Line) -- Mitchellville | |
| Interstate 75 | 161.86 mi (260.5 km) | I-75 (Georgia State Line) -- Chattanooga | south to north | I-75 (Kentucky State Line) -- Jellico | |
| Interstate 81 | 75.66 mi (121.8 km) | I-40 – White Pine | south to north | I-81 (Virginia State Line) -- Bristol | |
| Interstate 124 (hidden) | 1.97 mi (3.2 km) | I-24 – Chattanooga | west to east | US-27 (at Tennessee River) – Chattanooga | |
| Interstate 140 | 11.18 mi (18.0 km) | SR-162 (Pellissippi Parkway) – Knoxville | west to east | US-129 (Airport Highway) / SR-162 (Pellissippi Parkway) – Alcoa | |
| Interstate 240 | 19.27 mi (31.0 km) | I-40 – Memphis | west to east then south to north |
I-40 – Memphis (Downtown) | |
| Interstate 440 | 7.64 mi (12.3 km) | I-40 – Nashville | west to east | I-24 – Nashville | |
| Interstate 640 | 7.03 mi (11.3 km) | I-40 / I-75 – Knoxville | west to east | I-40 / US-25W – Knoxville | |
| Interstate 155 | 15.93 mi (25.6 km) | I-155 / US 412 in Dyer County | west to east | US-51 / US-412 – Dyersburg | |
| Interstate 275 | 2.98 mi (4.8 km) | I-40 / US-441 – Knoxville | south to north | I-640 / I-75 / US-25W – Knoxville | |
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| Interstate 3 (proposed) | Proposed I-40 / I-75 – Knoxville | south to north | Proposed I-3 (North Carolina State Line) near Deals Gap | ||
| I-69 (under development) | I-55 / I-69 (Mississippi State Line) -- Memphis | south to north | I-69 / US 51 (Kentucky State Line) -- South Fulton | ||
| I-269 (under development) | I-269 (Mississippi State Line) -- Collierville | south to north | I-69 – Millington | ||
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| Interstate 255 (former) | 5.38 mi (8.7 km) | I-55 / I-240 – Memphis | south to north | I-40 / I-240 – Memphis | |
| Interstate 265 (former) | 2.41 mi (3.9 km) | I-40 – Nashville | south to north | I-24 / I-65 – Nashville | |
| Interstate 181 (former) | 23.85 mi (38.4 km) | US-19W / US-23 / US-321 – Johnson City | south to north | US-11W / US-23 – Kingsport | |
Read more about this topic: List Of Numbered Highways In Tennessee
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