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List of Interstate Highways in Louisiana

February 09, 2023

The Interstate Highway System in Louisiana consists of 933.84 miles (1,502.87 km)[4] of freeways constructed and maintained by the Louisiana Department of Transportation and Development (La DOTD).

Interstate Highways of the Louisiana Highway System

Highway markers in use for primary interstates (left) and auxiliary interstates (right)
System information
Length933.84 mi[4] (1,502.87 km)
FormedJune 29, 1956 (authorized);[1]
February 24, 1960 (opened);[2]
April 23, 1960 (signed)[3]
Highway names
InterstatesInterstate X (I-X)
System links
  • Louisiana State Highway System

The system was authorized on June 29, 1956 when President Dwight D. Eisenhower signed into law the Federal Aid Highway Act of 1956.[1] The Louisiana Department of Highways, predecessor of the DOTD, began construction shortly afterward on its portion of the system, to which approximately 686 miles (1,104 km) was initially allotted.[5] The first road segment in the new system was officially opened and dedicated on February 24, 1960 and consisted of a portion of the Pontchartrain Expressway (I-10) in New Orleans.[2] Two months later, the first Interstate Highway shields installed in Louisiana accompanied the opening of a portion of I-20 near Ruston on April 23.[3]

Primary interstates

Number Length (mi)[4] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  I-10 274.42 441.64 Texas state line at Orange, TX Mississippi state line east of Slidell 01960-01-011960[2] current Southern Louisiana's primary east–west route serving Lake Charles, Lafayette, Baton Rouge, New Orleans, and Slidell
  I-12 85.59 137.74 I-10 in Baton Rouge I-10/I-59 in Slidell 01967-01-011967[6] current Northern bypass of New Orleans metropolitan area via Hammond
  I-14 — — Texas state line near Leesville, LA (undecided) Mississippi state line near Natchez, MS (undecided) proposed — Proposed extension roughly paralleling the LA 28 corridor
  I-20 189.87 305.57 Texas state line west of Greenwood Mississippi state line at Vicksburg, MS 01960-01-011960[3] current Northern Louisiana's primary east–west route serving Shreveport and Monroe
  I-49 239.25 385.04 I-10/US 167 in Lafayette Arkansas state line north of Ida 01983-01-011983[7] current Louisiana's primary north–south route, connecting I-10 and I-20 via Alexandria; final gap in Shreveport is under construction and southern extension from Lafayette to New Orleans is planned
  I-55 65.81 105.91 I-10/US 51 in LaPlace Mississippi state line north of Kentwood 01960-01-011960[8] current North–south route in southeastern Louisiana via Hammond
  I-59 11.48 18.48 I-10/I-12 in Slidell Mississippi state line north of Pearl River 01962-01-011962[9] current North–south route in southeastern Louisiana via Slidell
  I-69 — — Texas state line southwest of Shreveport (undecided) Arkansas state line northeast of Haynesville (undecided) proposed — Proposed extension roughly paralleling the US 79 corridor
  •       Former
  •       Proposed and unbuilt

Auxiliary interstates

Number Length (mi)[4] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
  I-110 8.89 14.31 I-10 in Baton Rouge US 61 in Baton Rouge 01964-01-011964[10] current Baton Rouge spur; formerly designated as I-410
  I-210 12.40 19.96 I-10 west of Lake Charles I-10 east of Lake Charles 01964-01-011964[11] current Lake Charles downtown bypass
  I-220 17.62 28.36 I-20/LA 3132 in Shreveport I-20 in Bossier City 01977-01-011977[12] current Shreveport–Bossier City downtown bypass
  I-310 11.25 18.11 US 90/LA 3127 in Boutte I-10 west of Kenner 01983-01-011983[13] current Spur west of New Orleans
  I-310 2.70 4.35 US 90 Bus. in New Orleans I-10 in New Orleans 01964-01-011964[14] 01969-01-011969[15] Cancelled Vieux Carré Riverfront Expressway
  I-410 1.90 3.06 LA 67 in Baton Rouge I-10 in Baton Rouge 01961-01-011961[16] 01964-01-011964[10] Unfinished Baton Rouge loop partially retained as I-110; planned as 13.60-mile (21.89 km) route with western terminus at I-10 near Port Allen[11]
  I-410 48.5 78.1 I-10 west of New Orleans I-10 in Eastern New Orleans 01969-01-011969[15] 01977-01-011977[17] Cancelled southern bypass of New Orleans known as the Dixie Freeway; partially built as current I-310 and I-510
  I-420 10.20 16.42 I-20 in West Monroe I-20 in Monroe 01957-01-011957[18] 01964-01-011964[14] Cancelled two-lane bypass of Monroe
  I-510 3.04 4.89 LA 47 in New Orleans I-10/LA 47 in New Orleans 01992-01-011992[19] current Spur in Eastern New Orleans
  I-610 4.52 7.27 I-10 in New Orleans 01965-01-011965[20] current New Orleans downtown bypass
  I-910 9.70 15.61 US 90 Bus. in Marrero I-10/US 90 Bus. in New Orleans 01999-01-011999[21] current FHWA designation (not used by La DOTD) for freeway portion of US 90 Bus. and placeholder for future I-49 corridor
  •       Former
  •       Proposed and unbuilt

See also

References

  1. ^ a b "Highway Boom in La. Foreseen". The Times-Picayune. New Orleans. June 30, 1956. p. 1.
  2. ^ a b c "Expressway Will Be Dedicated". The Times-Picayune. New Orleans. February 24, 1960. p. 13.
  3. ^ a b c Wagner, Robert (April 24, 1960). "Highway Unit is Dedicated". The Times-Picayune. New Orleans. p. 28.
  4. ^ a b c d "FHWA Route Log and Finder List, Table 3: Interstate Routes". Federal Highway Administration. May 23, 2017. Retrieved May 26, 2017.
  5. ^ "Hearing Scheduled Feb. 11 on Proposed US Highway". The Times-Picayune. New Orleans. January 22, 1958. p. 31.
  6. ^ "State Highway Work Sets All-Time Mark". The Times-Picayune. New Orleans. January 29, 1967. sec. 8, p. 11.
  7. ^ "I-49 Progressing in La.; 25 Miles Open, 55 to Go". The Times-Picayune. New Orleans. January 15, 1984. p. 6.
  8. ^ "Interstate Road Work Keeps Pace with Cars". The Times-Picayune. New Orleans. August 4, 1960. sec. 4, p. 11.
  9. ^ "La., Miss. Road Link Dedicated". The Times-Picayune. New Orleans. August 3, 1962. p. 25.
  10. ^ a b U.S. Route Numbering Subcommittee (June 20, 1970). "U.S. Route Numbering Subcommittee Agenda Showing Action Taken by the Executive Committee" (PDF) (Report). Washington, DC: American Association of State Highway Officials. p. 2. Retrieved May 26, 2017 – via Wikimedia Commons.
  11. ^ a b "Louisiana's 679.9 Miles of Interstate Highways Ahead of Schedule". The Times-Picayune. New Orleans. November 27, 1964. sec. 4, p. 1.
  12. ^ Shuler, Marsha (December 29, 1977). "Road Projects Give New Look to Area". The Shreveport Times. Shreveport. p. 5A.
  13. ^ "Goodbye Ferry, Hello New Bridge, St. Charles Cheers". The Times-Picayune. New Orleans. October 7, 1983. p. 1.
  14. ^ a b Weingroff, Richard F. (November 18, 2015). "The Battles of New Orleans—Vieux Carré Riverfront Expressway (I-310)". Highway History. Federal Highway Administration. Retrieved May 26, 2017.
  15. ^ a b U.S. Route Numbering Subcommittee (October 26, 1969). "U.S. Route Numbering Subcommittee Agenda Showing Action Taken by the Executive Committee" (Report). Washington, DC: American Association of State Highway Officials. p. 7. Retrieved May 26, 2017 – via Wikisource.
  16. ^ General Drafting (1961). Arkansas, Louisiana, Mississippi (Map) (November 1961 ed.). Esso.
  17. ^ Special Committee on U.S. Route Numbering (July 6, 1977). "Route Numbering Committee Agenda" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 2. Retrieved May 26, 2017 – via Wikimedia Commons.
  18. ^ Wagner, Robert (January 26, 1958). "Interstate Highway System Construction Work Is Begun". The Times-Picayune. New Orleans. sec. 8, p. 12.
  19. ^ Turni, Karen (November 14, 1992). "I-510 Opening Links St. Bernard, I-10". The Times-Picayune. New Orleans. p. B1.
  20. ^ "Route to Ease Traffic Tieup". The Times-Picayune. New Orleans. March 26, 1965. sec. 2, p. 2.
  21. ^ Sine, Richard (April 1, 2000). "I-910 May Pave Path in N.O.". The Times-Picayune. New Orleans. p. A1.

External links

 
Wikimedia Commons has media related to Interstate Highways in Louisiana.
  • Maps / GIS Data Homepage, Louisiana Department of Transportation and Development

February 09, 2023
list, interstate, highways, louisiana, interstate, highway, system, louisiana, consists, miles, freeways, constructed, maintained, louisiana, department, transportation, development, dotd, interstate, highways, louisiana, highway, systemhighway, markers, prima. The Interstate Highway System in Louisiana consists of 933 84 miles 1 502 87 km 4 of freeways constructed and maintained by the Louisiana Department of Transportation and Development La DOTD Interstate Highways of the Louisiana Highway SystemHighway markers in use for primary interstates left and auxiliary interstates right System informationLength933 84 mi 4 1 502 87 km FormedJune 29 1956 authorized 1 February 24 1960 opened 2 April 23 1960 signed 3 Highway namesInterstatesInterstate X I X System linksLouisiana State Highway SystemInterstate US State ScenicThe system was authorized on June 29 1956 when President Dwight D Eisenhower signed into law the Federal Aid Highway Act of 1956 1 The Louisiana Department of Highways predecessor of the DOTD began construction shortly afterward on its portion of the system to which approximately 686 miles 1 104 km was initially allotted 5 The first road segment in the new system was officially opened and dedicated on February 24 1960 and consisted of a portion of the Pontchartrain Expressway I 10 in New Orleans 2 Two months later the first Interstate Highway shields installed in Louisiana accompanied the opening of a portion of I 20 near Ruston on April 23 3 Contents 1 Primary interstates 2 Auxiliary interstates 3 See also 4 References 5 External linksPrimary interstates EditNumber Length mi 4 Length km Southern or western terminus Northern or eastern terminus Formed Removed Notes I 10 274 42 441 64 Texas state line at Orange TX Mississippi state line east of Slidell 01960 01 01 1960 2 current Southern Louisiana s primary east west route serving Lake Charles Lafayette Baton Rouge New Orleans and Slidell I 12 85 59 137 74 I 10 in Baton Rouge I 10 I 59 in Slidell 01967 01 01 1967 6 current Northern bypass of New Orleans metropolitan area via Hammond I 14 Texas state line near Leesville LA undecided Mississippi state line near Natchez MS undecided proposed Proposed extension roughly paralleling the LA 28 corridor I 20 189 87 305 57 Texas state line west of Greenwood Mississippi state line at Vicksburg MS 01960 01 01 1960 3 current Northern Louisiana s primary east west route serving Shreveport and Monroe I 49 239 25 385 04 I 10 US 167 in Lafayette Arkansas state line north of Ida 01983 01 01 1983 7 current Louisiana s primary north south route connecting I 10 and I 20 via Alexandria final gap in Shreveport is under construction and southern extension from Lafayette to New Orleans is planned I 55 65 81 105 91 I 10 US 51 in LaPlace Mississippi state line north of Kentwood 01960 01 01 1960 8 current North south route in southeastern Louisiana via Hammond I 59 11 48 18 48 I 10 I 12 in Slidell Mississippi state line north of Pearl River 01962 01 01 1962 9 current North south route in southeastern Louisiana via Slidell I 69 Texas state line southwest of Shreveport undecided Arkansas state line northeast of Haynesville undecided proposed Proposed extension roughly paralleling the US 79 corridor Former Proposed and unbuiltAuxiliary interstates EditNumber Length mi 4 Length km Southern or western terminus Northern or eastern terminus Formed Removed Notes I 110 8 89 14 31 I 10 in Baton Rouge US 61 in Baton Rouge 01964 01 01 1964 10 current Baton Rouge spur formerly designated as I 410 I 210 12 40 19 96 I 10 west of Lake Charles I 10 east of Lake Charles 01964 01 01 1964 11 current Lake Charles downtown bypass I 220 17 62 28 36 I 20 LA 3132 in Shreveport I 20 in Bossier City 01977 01 01 1977 12 current Shreveport Bossier City downtown bypass I 310 11 25 18 11 US 90 LA 3127 in Boutte I 10 west of Kenner 01983 01 01 1983 13 current Spur west of New Orleans I 310 2 70 4 35 US 90 Bus in New Orleans I 10 in New Orleans 01964 01 01 1964 14 01969 01 01 1969 15 Cancelled Vieux Carre Riverfront Expressway I 410 1 90 3 06 LA 67 in Baton Rouge I 10 in Baton Rouge 01961 01 01 1961 16 01964 01 01 1964 10 Unfinished Baton Rouge loop partially retained as I 110 planned as 13 60 mile 21 89 km route with western terminus at I 10 near Port Allen 11 I 410 48 5 78 1 I 10 west of New Orleans I 10 in Eastern New Orleans 01969 01 01 1969 15 01977 01 01 1977 17 Cancelled southern bypass of New Orleans known as the Dixie Freeway partially built as current I 310 and I 510 I 420 10 20 16 42 I 20 in West Monroe I 20 in Monroe 01957 01 01 1957 18 01964 01 01 1964 14 Cancelled two lane bypass of Monroe I 510 3 04 4 89 LA 47 in New Orleans I 10 LA 47 in New Orleans 01992 01 01 1992 19 current Spur in Eastern New Orleans I 610 4 52 7 27 I 10 in New Orleans 01965 01 01 1965 20 current New Orleans downtown bypass I 910 9 70 15 61 US 90 Bus in Marrero I 10 US 90 Bus in New Orleans 01999 01 01 1999 21 current FHWA designation not used by La DOTD for freeway portion of US 90 Bus and placeholder for future I 49 corridor Former Proposed and unbuiltSee also Edit United States portal U S Roads portalReferences Edit a b Highway Boom in La Foreseen The Times Picayune New Orleans June 30 1956 p 1 a b c Expressway Will Be Dedicated The Times Picayune New Orleans February 24 1960 p 13 a b c Wagner Robert April 24 1960 Highway Unit is Dedicated The Times Picayune New Orleans p 28 a b c d FHWA Route Log and Finder List Table 3 Interstate Routes Federal Highway Administration May 23 2017 Retrieved May 26 2017 Hearing Scheduled Feb 11 on Proposed US Highway The Times Picayune New Orleans January 22 1958 p 31 State Highway Work Sets All Time Mark The Times Picayune New Orleans January 29 1967 sec 8 p 11 I 49 Progressing in La 25 Miles Open 55 to Go The Times Picayune New Orleans January 15 1984 p 6 Interstate Road Work Keeps Pace with Cars The Times Picayune New Orleans August 4 1960 sec 4 p 11 La Miss Road Link Dedicated The Times Picayune New Orleans August 3 1962 p 25 a b U S Route Numbering Subcommittee June 20 1970 U S Route Numbering Subcommittee Agenda Showing Action Taken by the Executive Committee PDF Report Washington DC American Association of State Highway Officials p 2 Retrieved May 26 2017 via Wikimedia Commons a b Louisiana s 679 9 Miles of Interstate Highways Ahead of Schedule The Times Picayune New Orleans November 27 1964 sec 4 p 1 Shuler Marsha December 29 1977 Road Projects Give New Look to Area The Shreveport Times Shreveport p 5A Goodbye Ferry Hello New Bridge St Charles Cheers The Times Picayune New Orleans October 7 1983 p 1 a b Weingroff Richard F November 18 2015 The Battles of New Orleans Vieux Carre Riverfront Expressway I 310 Highway History Federal Highway Administration Retrieved May 26 2017 a b U S Route Numbering Subcommittee October 26 1969 U S Route Numbering Subcommittee Agenda Showing Action Taken by the Executive Committee Report Washington DC American Association of State Highway Officials p 7 Retrieved May 26 2017 via Wikisource General Drafting 1961 Arkansas Louisiana Mississippi Map November 1961 ed Esso Special Committee on U S Route Numbering July 6 1977 Route Numbering Committee Agenda PDF Report Washington DC American Association of State Highway and Transportation Officials p 2 Retrieved May 26 2017 via Wikimedia Commons Wagner Robert January 26 1958 Interstate Highway System Construction Work Is Begun The Times Picayune New Orleans sec 8 p 12 Turni Karen November 14 1992 I 510 Opening Links St Bernard I 10 The Times Picayune New Orleans p B1 Route to Ease Traffic Tieup The Times Picayune New Orleans March 26 1965 sec 2 p 2 Sine Richard April 1 2000 I 910 May Pave Path in N O The Times Picayune New Orleans p A1 External links Edit Wikimedia Commons has media related to Interstate Highways in Louisiana Maps GIS Data Homepage Louisiana Department of Transportation and Development Retrieved from https en wikipedia org w index php title List of Interstate Highways in Louisiana amp oldid 1074873913, wikipedia, wiki, book, books, library,

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