List of Interstate Highways in Tennessee

Interstate Highways of the State Route System
	Highway markers for Interstate 40 and the proposed Interstate 840
System information
	Maintained by TDOT
Length:	1,073 mi (1,727 km)
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; Interstate; US; State;

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]

Primary Interstates

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0022 !I-22	20.50	32.99	I-40 & I-240/I-69 in Downtown Memphis	Interstate 22/US 78 at Mississippi state line	2004	2006	Formerly proposed along US 78; terminus was set at I-269 in 2006
I0024 !I-24	180.16	289.94	I-24 at Kentucky state line	I-75/US 74 in Chattanooga	—	—
I0026 !I-26	54.5	87.7	US 11W/US 23 in Kingsport	I-26/US 23 at North Carolina state line	2003	current
I0040 !I-40	455.28	732.70	I-40 at Arkansas state line	I-40 at North Carolina state line	—	—
I0055 !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	—	—
I0065 !I-65	121.71	195.87	I-65/US 31 at Alabama state line	I-65 at Kentucky state line	—	—
I0069 !I-69	—	—	I-55/I-69 at Mississippi state line	I-69/US 51 at Kentucky state line	proposed	—
I0075 !I-75	161.86	260.49	I-75 at Georgia state line	I-75 at Kentucky state line	—	—
I0081 !I-81	75.66	121.76	I-40 in Dandridge	I-81 at Virginia state line	—	—
Future

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I0124 !I-124	1.97	3.17	I-24 in Chattanooga	US 27 in Chattanooga	—	—	Unsigned designation
I0140 !I-140	11.18	17.99	SR 162 in Knoxville	US 129/SR 162 in Alcoa	—	—
I0155 !I-155	15.93	25.64	I-155/US 412 at Missouri state line	US 51/US 412 in Dyersburg	—	—
I0181 !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
I0240 !I-240	19.27	31.01	I-40 in Memphis	I-40 in Memphis	—	—
I0255 !I-255	5.38	8.66	I-55/I-240 in Memphis	I-40/I-240 in Memphis	—	—	Never built; was planned to be the Northern Memphis beltway, replaced by I-40.
I0265 !I-265	2.41	3.88	I-24/I-65 in Nashville	—	—	—	Replaced by I-65
I0269 !I-269	—	—	I-269 at Mississippi state line	US 51 in Millington	2015^[2]	current	Section north of SR 385 formerly signed SR 385
I0275 !I-275	2.98	4.80	I-40/US 441 in Knoxville	I-75/I-640/US 25W in Knoxville	—	—
I0440 !I-440	7.64	12.30	I-40 in Nashville	I-24 in Nashville	—	—
I0640 !I-640	7.03	11.31	I-40/I-75 in Knoxville	I-40/US 25W in Knoxville	—	—
I0840 !I-840	77.28	124.37	I-40 near Dickson	I-40 near Lebanon	proposed	—	Proposed renumbering of SR 840, the Nashville Southern Beltway.^[3]
Former Future