List of Interstate Highways in Tennessee

The Interstate Highways in Tennessee are those parts of the Dwight D. Eisenhower National System of Interstate and Defense Highways owned and maintained by the Tennessee Department of Transportation (TDOT) the US state of Tennessee. Currently the state has 1,073 miles (1,727 km) of Interstate Highways.[1]

Interstate Highways of the State Route System
Interstate 40 markerInterstate 840 marker
Highway markers for Interstate 40 and Interstate 840
System information
Maintained by TDOT
Length1,073 mi[1] (1,727 km)
Highway names
InterstatesInterstate XX (I-XX)
US HighwaysU.S. Route XX (US XX)
StateState Route XX (SR XX)
System links

Primary InterstatesEdit

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  I-3 Georgia state line Knoxville proposed Proposal for the Third Infantry Division Highway
  I-22 I-40 & I-240 in Downtown Memphis I-22/US 78 at Mississippi state line Formerly proposed along US 78 between 2004-2006
  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 02003-01-012003 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
  I-69 I-55/I-69 at Mississippi state line I-69/US 51 at Kentucky state line proposed Designation approved, but not adopted by TDOT, from Mississippi state line to I-40/SR 300
  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 Dandridge I-81 at Virginia state line
  •       Former
  •       Future

Auxiliary InterstatesEdit

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-169 I-69 / US 51 in Union City SR 22 / SR 43 / US 45E in Martin proposed Will be renumbering the freeway portion of SR 22
  I-181 15.93 25.64 US 19W/US 23/US 321 in Johnson City US 11W/US 23 in Kingsport 01985-01-011985 02007-01-012007 Replaced by I-26
  I-240 19.27 31.01 I-40 in Memphis I-40 in Memphis Entire loop at one time proposed to be I-240.
Northern side of loop designated as I-40 upon completion, due to abandonment of plans to build I-40 through Overton Park.
  I-255 5.38 8.66 I-55/I-240 in Memphis I-40/I-240 in Memphis Original designation of I-240 between western I-40 interchange and I-55
  I-265 2.41 3.88 I-24/I-65 in Nashville Replaced by I-65
  I-269 19 31 I-269 at Mississippi state line I-40/SR 385 in Arlington 02015-01-012015[2] current Will replace SR 385 between Arlington and Millington in future.
  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-475 I-40/I-75 near Lenoir City I-75 near Heiskell 01995-01-011995 02010-01-012010 Proposed I-75 bypass of Knoxville, also proposed to be extended to I-40 at exit 407 (SR 66) to provide a complete northern beltway of Knoxville and provide a more direct route to Sevier County/Great Smoky Mountains National Park
  I-640 10.1 16.3 I-40/I-75 in Knoxville I-40/US 25W in Knoxville
  I-840 77.28 124.37 I-40 near Dickson I-40 near Lebanon 02016-01-012016 current Redesignated from SR 840, the Nashville Southern Beltway.[3]
  •       Former
  •       Future

See alsoEdit


  1. ^ a b TDOT Fact Sheet
  2. ^ Charlier, Tom (October 19, 2015). "Section of I-269 from Collierville to Mississippi to open Friday". The Commercial Appeal. Memphis, TN. Retrieved November 19, 2015.
  3. ^ Special Committee on U.S. Route Numbering (May 14, 2015). "Special Committee on U.S. Route Numbering Spring 2015 Report to the Standing Committee on Highways" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 6. Archived (PDF) from the original on June 3, 2019. Retrieved June 6, 2015.

External linksEdit