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	Highway markers for Interstate 70 and Interstate 135
	Interstate Highways highlighted in red
Highway names
Interstates	Interstate nn (I-nn)
US Highways	U.S. Highway nn (US-nn)
State	K-nn
System links
	Kansas State Highway System; Interstate; US; State; Spurs;

The Interstate Highways in Kansas are the segments of the Dwight D. Eisenhower National System of Interstate and Defense Highways within the U.S. state of Kansas.

Primary highways


Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-35	235.5	379.0	Oklahoma state line south of South Haven	Missouri state line in Kansas City	01956-01-011956	current	Concurrent with the Kansas Turnpike for 127 miles from the Oklahoma state line to the junction with I-335 and US-50 in Emporia.
I-35W	95.7	154.0	I-35 / Kansas Turnpike in Wichita	I-70 / US-40 / US-81 in Salina	01971-01-011971	01976-01-011976	Renumbered I-135
I-66	—	—	Wichita, Kansas	Missouri State line	01991-01-011991	02015-01-012015	Cancelled proposed interstate that was planned to run from Wichita to the junction with I-73/I-74/US 52 in West Virginia as part of the East–West TransAmerica Corridor.
I-70	424.2	682.7	Colorado state line west of Kanorado	Missouri state line in Kansas City	01956-01-011956	current	Concurrent with the Kansas Turnpike from the junction with I-470, US-40 and K-4 in East Topeka to the Turnpike's eastern terminus in the Kansas City area.


Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-135	95.7	154.0	I-35 / Kansas Turnpike in Wichita	I-70 / US-40 / US-81 in Salina	01976-01-011976	current	Originally signed as I-35W
I-235	16.5	26.6	I-135 / US-81 in Wichita	I-135 / US-81 / K-15 / K-96 / K-254 in Wichita	01962-01-011962	current
I-335	50.1	80.6	I-35 / Kansas Turnpike / US-50 in Emporia	I-470 / Kansas Turnpike / US-75 in Topeka	01987-01-011987	current	Overlaps Kansas Turnpike for its entire length
I-435	28.17	45.34	Missouri state line in Kansas City	Missouri state line in Leawood (State Line Road)	01965-01-011965	current	Kansas City beltway
I-470	13.72	22.08	I-70 / US-40 / K-4 / US-75 in Topeka	I-70 / Kansas Turnpike / US-40 / K-4 east of Topeka	01960-01-011960	current	Concurrent with the Kansas Turnpike from the junction with I-335 in South Topeka to the junction with I-70, US-40 and K-4 in East Topeka.
I-635	8.9	14.3	I-35 / US-69 in Overland Park	Missouri state line in Kansas City	01975-01-011975	current
I-670	1.64	2.64	I-70 / US-24 / US-40 / US-69 in Kansas City	Missouri state line in Kansas City	01968-01-011968	current