List of numbered highways in Tennessee

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I-24.svgUS 70S.svgTennessee 155.svgSecondary Tennessee 255.svg
Interstate, US Route, and Primary/Secondary State Routes
System information
Notes: maintained by TDOT
Highway names
Interstates: Interstate XX (I-XX)
US Routes: U.S. Highway XX (US XX)
State: State Route XX (SR-XX)
System links
  • Tennessee State Routes

The Tennessee Department of Transportation maintains and develops the highways in the state of Tennessee. Currently the state has 14,150 miles (22,772.2 km) of state-maintained roadways, including 1,073 miles (1,726.8 km) of Interstate Highways and 13,077 miles (21,045.4 km) of State Highways.[1] All of the U.S. Routes in Tennessee have a state highway concurrent, though the state highway is hidden and only signed along the green mile marker signs that display mileage within each county. Since 1982, State Highways have been divided into primary and secondary routes. Primary State Highways are part of the Federal-aid primary highway system, whereas secondary highways are not.[2] For the complete list of State Highways see List of state routes in Tennessee.

Primary Interstates[edit]

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I‑24 180.16 289.94 I-24 at Kentucky state line I-75/US 74 in Chattanooga
I‑26 54.5 87.7 US 11W/US 23 in Kingsport I-26/US 23 at North Carolina state line 2003 current
I‑40 455.28 732.70 I-40 at Arkansas state line I-40 at North Carolina state line
I‑55 12.28 19.76 I-55/I-69 at Mississippi state line I-55/US 61/US 64/US 70/US 79 at Arkansas state line
I‑65 121.71 195.87 I-65/US 31 at Alabama state line I-65 at Kentucky state line
Future I-69 0 0 I-55/I-69 at Mississippi state line I-69/US 51 at Kentucky state line proposed
I‑75 161.86 260.49 I-75 at Georgia state line I-75 at Kentucky state line
I‑81 75.66 121.76 I-40 in White Pine I-81 at Virginia state line
  •       Future

Auxiliary Interstates[edit]

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I‑124 1.97 3.17 I-24 in Chattanooga US 27 in Chattanooga Unsigned designation
I‑140 11.18 17.99 SR 162 in Knoxville US 129/SR 162 in Alcoa
I‑155 15.93 25.64 I-155/US 412 at Missouri state line US 51/US 412 in Dyersburg
I‑181 15.93 25.64 US 19W/US 23/US 321 in Johnson City US 11W/US 23 in Kingsport 1985 2007 Replaced by I-26
I‑240 19.27 31.01 I-40 in Memphis I-40 in Memphis
I‑255 5.38 8.66 I-55/I-240 in Memphis I-40/I-240 in Memphis
I‑265 2.41 3.88 I-40 in Nashville I-24/I-65 in Nashville
Future I-269 0 0 Future I-269 at Mississippi state line Future I-69 in Millington proposed
I‑275 2.98 4.80 I-40/US 441 in Knoxville I-75/I-640/US 25W in Knoxville
I‑440 7.64 12.30 I-40 in Nashville I-24 in Nashville
I‑640 7.03 11.31 I-40/I-75 in Knoxville I-40/US 25W in Knoxville
  •       Former
  •       Future

U.S. Highways[edit]

Shield Route Number Length Starting Terminus Direction Ending Terminus
Current U.S. Highways
US 11.svg U.S. Route 11 124.86 mi (200.94 km) US 11 (Georgia State Line) -- Chattanooga south to north US 11E / US 11W / US 70 – Knoxville
US 11W.svg U.S. Route 11W 109.16 mi (175.68 km) US 11 / US 11E / US 70 – Knoxville south to north US 11W / US 421 (Virginia State Line) – Bristol
US 11E.svg U.S. Route 11E 120.36 mi (193.70 km) US 11 / US 11W / US 70 – Knoxville south to north US 11E (Virginia State Line) – Bristol
US 19.svg U.S. Route 19 11.63 mi (18.72 km) US 11E / US 19W / US 19E – Bluff City south to north US 11E (Virginia State Line) / US 19 – Bristol
US 19W.svg U.S. Route 19W 40.69 mi (65.48 km) US 19W (North Carolina State Line) in Unicoi County south to north US 11E / US 19 / US 19E – Bluff City
US 19E.svg U.S. Route 19E 30.98 mi (49.86 km) US 19E (North Carolina State Line) near Roan Mountain south to north US 11E / US 19 / US 19W – Bluff City
US 23.svg U.S. Route 23 57.38 mi (92.34 km) I‑26 / US 23 (North Carolina State Line) in Unicoi County south to north US 23 (Virginia State Line) -- Kingsport
US 25.svg U.S. Route 25 20.14 mi (32.41 km) US 25 / US 70 (North Carolina State Line) near Del Rio south to north US 25W / US 25E / US 70 – Newport
US 25W.svg U.S. Route 25W 110.03 mi (177.08 km) US 25 / US 25E / US 70 – Newport south to north US 25W (Kentucky State Line) -- Jellico
US 25E.svg U.S. Route 25E 63.24 mi (101.77 km) US 25 / US 25W / US 70 – Newport south to north US 25E (Kentucky State Line) -- Cumberland Gap
US 27.svg U.S. Route 27 144.8 mi (233.0 km) US 27 (Georgia State Line) -- Chattanooga south to north US 27 (Kentucky State Line) -- Winfield
US 31.svg U.S. Route 31 93.01 mi (149.69 km) I‑65 / US-31 (Alabama State Line) -- Ardmore south to north US 31W / US 31E / US 41 / US 431 – Nashville
US 31A.svg U.S. Route 31A 76.94 mi (123.82 km) US 31 – Pulaski south to north I‑40 / US 41 / US 41A / US 70S – Nashville
US 31W.svg U.S. Route 31W 36.08 mi (58.07 km) US 31 / US 31E / US 41 / US 431 – Nashville south to north US 31W (Kentucky State Line) -- Portland
US 31E.svg U.S. Route 31E 50.38 mi (81.08 km) US 31 / US 31W / US 41 / US 431 – Nashville south to north US 31E / US 231 (Kentucky State Line) near Westmoreland
US 41.svg U.S. Route 41 194.58 mi (313.15 km) US 41 / US 76 (Georgia State Line) -- East Ridge south to north US 41 (Kentucky State Line) near Adams
US 41A.svg U.S. Route 41A 157.87 mi (254.07 km) US 41 – Monteagle south to north US 41A (Kentucky State Line) -- Clarksville
US 43.svg U.S. Route 43 120.39 mi (193.75 km) US-43 (Alabama State Line) -- Saint Joseph south to north US 31 / US 412 – Columbia
US 45.svg U.S. Route 45 (I) 60.95 mi (98.09 km)
(II) 0.45 mi (0.72 km)
(I) US 45 (Mississippi State Line) -- Guys
(II) US 45W / US 45E / US 51 – South Fulton
south to north (I) US 45W / US 45E – Three Way
(II) US 45 / US 51 (Kentucky State Line) -- South Fulton
US 45W.svg U.S. Route 45W 62.33 mi (100.31 km) US 45 / US 45E – Three Way south to north US 45 / US 45E / US 51 – South Fulton
US 45E.svg U.S. Route 45E 61.23 mi (98.54 km) US 45 / US 45W – Three Way south to north US 45 / US 45W / US 51 – South Fulton
US 51.svg U.S. Route 51 135.18 mi (217.55 km) US 51 (Mississippi State Line) -- Memphis south to north US 45 / US 51 (Kentucky State Line) -- South Fulton
US 58.svg U.S. Route 58 0.8 mi (1.3 km) US 25E – Cumberland Gap west to east US 58 (Virginia State Line) -- Cumberland Gap
US 61.svg U.S. Route 61 11.82 mi (19.02 km) US 61 (Mississippi State Line) -- Memphis south to north I‑55 / US 61 / US 64 / US 70 / US 79 (AR State Line) -- Memphis
US 64.svg U.S. Route 64 379.52 mi (610.78 km) I‑55 / US 61 / US 64 / US 70 / US 79 (AR State Line) -- Memphis west to east US 64 / US 74 (North Carolina State Line) near Ducktown
US 70.svg U.S. Route 70 478.48 mi (770.04 km) I‑55 / US 61 / US 64 / US 70 / US 79 (AR State Line) -- Memphis west to east US 25 / US 70 (North Carolina State Line) near Del Rio
US 70A.svg U.S. Route 70A 58.12 mi (93.54 km) US 70 / US 79 – Brownsville west to east US 70 – Huntingdon
US 70N.svg U.S. Route 70N 87.24 mi (140.40 km) US 70 – Lebanon west to east US 70 – Crossville
US 70S.svg U.S. Route 70S 112.96 mi (181.79 km) US 70 – Nashville west to east US 70 – Sparta
US 72.svg U.S. Route 72 (I) 25.63 mi (41.25 km)
(II) 35.02 mi (56.36 km)
(I) US 51 / US 64 / US 70 / US 79 – Memphis
(II) US-72 (Alabama State Line) -- South Pittsburgh
west to east (I) US 72 (Mississippi State Line) -- Collierville
(II) US 41 – Chattanooga
US 74.svg U.S. Route 74 62.83 mi (101.12 km) I‑24 / I‑75 – Chattanooga west to east US 64 / US 74 (North Carolina State Line) near Ducktown
US 76.svg U.S. Route 76 9.46 mi (15.22 km) US 127 – Chattanooga west to east US 41 / US 76 (Georgia State Line) -- East Ridge
US 78.svg U.S. Route 78 14.62 mi (23.53 km) SR 14 – Memphis west to east US 78 (Mississippi State Line) -- Memphis
US 79.svg U.S. Route 79 209.83 mi (337.69 km) I‑55 / US 61 / US 64 / US 70 / US 79 (AR State Line) -- Memphis south to north US 79 (Kentucky State Line) near Clarksville
US 127.svg U.S. Route 127 136.67 mi (219.95 km) US 76 – Chattanooga south to north US 127 (Kentucky State Line) -- Static
US 129.svg U.S. Route 129 51.69 mi (83.19 km) US 129 (North Carolina State Line) near Tallassee south to north I‑40 – Knoxville
US 231.svg U.S. Route 231 121.15 mi (194.97 km) US-231 / US-431 (Alabama State Line) near Fayetteville south to north US 31E / US 231 (Kentucky State Line) near Westmoreland
US 321.svg U.S. Route 321 194.50 mi (313.02 km) I‑40 – Oak Ridge south to north US 321 (North Carolina State Line) near Butler
US 411.svg U.S. Route 411 120.84 mi (194.47 km) US 411 (Georgia State Line) in Polk County south to north US 25W / US 70 – Newport
US 412.svg U.S. Route 412 181.93 mi (292.79 km) I-155 / US 412 (Missouri State Line) near Dyersburg west to east I‑65 – Columbia
US 421.svg U.S. Route 421 41.74 mi (67.17 km) US 421 (North Carolina State Line) -- Trade south to north US 421 (Virginia State Line) – Bristol
US 431.svg U.S. Route 431 130.68 mi (210.31 km) US-231 / US-431 (Alabama State Line) near Fayetteville south to north US 431 (Kentucky State Line) near Springfield
US 441.svg U.S. Route 441 83.28 mi (134.03 km) US 441 (North Carolina State Line) -- Newfound Gap south to north US 25W – Lake City
US 641.svg U.S. Route 641 51.27 mi (82.51 km) I‑40 – Holladay south to north US 641 (Kentucky State Line) near Puryear
No image.svg
Former U.S. Highways

See also[edit]

References[edit]