List of Interstate Highways in Louisiana
Interstate Highways of the Louisiana Highway System | |
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Highway markers in use for primary interstates (left) and auxiliary interstates (right) | |
![]() Interstate Highways highlighted in red | |
System information | |
Length | 933.84 mi[4] (1,502.87 km) |
Formed | June 29, 1956 (authorized);[1] February 24, 1960 (opened);[2] April 23, 1960 (signed)[3] |
Highway names | |
Interstates | Interstate X (I-X) |
System links | |
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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).
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 | |
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![]() | 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 | |
![]() | 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 | |
![]() | — | — | Texas state line near Leesville, LA (undecided) | Mississippi state line near Natchez, MS (undecided) | proposed | — | Proposed extension roughly paralleling the LA 28 corridor | |
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | — | — | Texas state line southwest of Shreveport (undecided) | Arkansas state line northeast of Haynesville (undecided) | proposed | — | Proposed extension roughly paralleling the US 79 corridor | |
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Auxiliary interstates
Number | Length (mi)[4] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
---|---|---|---|---|---|---|---|---|
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | 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] | |
![]() | 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 | |
![]() | 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 | |
![]() | 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 | |
![]() | 4.52 | 7.27 | I-10 in New Orleans | 01965-01-011965[20] | current | New Orleans downtown bypass | ||
![]() | 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 | |
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See also
United States portal
U.S. Roads portal
References
- ^ 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 Carré 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
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- Maps / GIS Data Homepage, Louisiana Department of Transportation and Development
- v
- t
- e
![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Flag_of_Louisiana.svg/20px-Flag_of_Louisiana.svg.png)
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