List of Interstate Highways in Missouri

The Interstate Highways in Missouri are the segments of the national Dwight D. Eisenhower System of Interstate and Defense Highways[2] that are owned and maintained by the U.S. state of Missouri.

Interstate Highways of the Missouri Highway System
Interstate 44 markerInterstate 435 markerInterstate 55 Business marker
Highway markers Interstate 44, Interstate 435,and Interstate Business Loop 55
System information
Maintained by MoDOT
FormedJune 29, 1956 (1956-06-29)[1]
Highway names
InterstatesInterstate nn (I‑nn)
System links

Primary InterstatesEdit

Number Length (mi)[3] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  I-29 128.584 206.936 Downtown Loop in Kansas City, Missouri I‑29 at Iowa state line south of Hamburg, IA 01963-01-011963 current
  I-35 114.448 184.186 I‑35 at Kansas City, Missouri I‑35 north of Eagleville 01972-01-011972 current
  I-44 293.184 471.834 I‑44 west of Joplin I‑70 in St. Louis 01956-01-011956 current
  I-49 178.717 287.617 US 71 in Pineville I‑470 in Kansas City 02012-12-122012[4] current Will be extended to Arkansas
  I-55 210.45 338.69 I‑55 south of Steele I‑55/I‑64 at St. Louis 01956-01-011956 current
  I-57 22.056 35.496 I‑55 at Sikeston I‑57 north of Charleston Will be extended into Arkansas
  I-64 40.816 65.687 I‑70 at Wentzville I‑64 at St. Louis 01956-01-011956 current
  I-66 340 547 Kansas state line west of Joplin Kentucky state line south of Cairo, IL 01991-01-011991 02015-01-012015 Was proposed as part of the East–West TransAmerica Corridor in 1991
  I-70 250.063 402.437 I‑70 at Kansas City I‑70 at St. Louis 01956-01-011956 current
  I-72 2.056 3.309 US 36/US 61 in Hannibal I‑72 at Hannibal A 157-mile (253 km) extension has been proposed to Cameron
  •       Former

Auxiliary InterstatesEdit

Number Length (mi)[3] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  I-155 10.834 17.436 I‑55/US 61 east of Hayti I‑155 east of Caruthersville
  I-170 11.255 18.113 I‑64/US 40 in Richmond Heights I‑270 in Hazelwood
  I-229 15.022 24.176 I‑29/US 71 in St. Joseph I‑29/US 59/US 71 north of St. Joseph 01986-01-011986 current
  I-244 21.047 33.872 I‑55 south of Green Park I‑70 in Bridgeton Previous designation for part of I-270
  I-255 3.979 6.404 I‑55 south of Green Park I‑255/US 50 at Illinois state line south of St. Louis Missouri section of the eastern half of beltway around St. Louis
  I-270 35.497 57.127 I‑55 south of Green Park I‑270 at Illinois state line at St. Louis Western half of beltway around St. Louis
  I-435 55.184 88.810 I‑435 at Kansas City I‑435 Kansas state line at Parkville Missouri section of the beltway around Kansas City
  I-470 17.081 27.489 I‑435/US 50/US 71 in Kansas City I‑70 in Independence 01970-01-011970[5] current Old US 250
  I-635 3.766 6.061 I‑635 at Kansas City I‑29/US 71 in Kansas City
  I-670 2.323 3.739 I‑670 at Kansas City I‑70/US 40 in Kansas City
  •       Former

See alsoEdit


  1. ^ McNichol, Dan (2006). The Roads that Built America. New York: Sterling. p. 106. ISBN 1-4027-3468-9..
  2. ^ Swift, Earl (2011). The Big Roads: The Untold Story of the Engineers, Visionaries, and Trailblazers Who Created the American Superhighways. Boston: Mariner. p. 5. ISBN 978-0-547-90724-6..
  3. ^ a b Missouri Department of Transportation (August 30, 2015). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved August 30, 2015.
  4. ^ "US 71 from Kansas City to Joplin to Become Interstate 49". The Kansas City Star. September 2, 2012.[dead link]
  5. ^ Missouri State Highway Commission (1970). Missouri Official Highway Map (PDF) (Map). Scale not given. Jefferson City: Missouri State Highway Commission. Kansas City inset. Retrieved February 19, 2011.

External linksEdit