List of state highways in Louisiana (1–99)
The following is a list of state highways in the U.S. state of Louisiana designated in the 1–99 range.
Louisiana Highway 1
Louisiana Highway 1 runs in a southeast to northwest direction from a dead end in Grand Isle, Jefferson Parish to the Texas state line northwest of Rodessa, Caddo Parish.Louisiana Highway 2
Louisiana Highway 2 runs in an east–west direction from the Texas state line southwest of Vivian, Caddo Parish to US 65 north of Lake Providence, East Carroll Parish.Louisiana Highway 2 Alternate
Louisiana Highway 2 Alternate runs in an east–west direction from the junction of LA 2 and LA 159 in Shongaloo, Caddo Parish to the junction of US 63/US 167 and LA 2 in Bernice, Union Parish.Louisiana Highway 3
Louisiana Highway 3 runs in a north–south direction from the junction of I-20, US 71, and LA 72 in Bossier City to the Arkansas state line north of Plain Dealing, Bossier Parish.Louisiana Highway 4
Louisiana Highway 4 runs in an east–west direction from US 71 north of Loggy Bayou, Red River Parish to LA 605 in Newellton, Tensas Parish.Louisiana Highway 5
Louisiana Highway 5 runs in a general southwest to northeast direction from US 84 in Logansport to LA 175 at Kingston, DeSoto Parish.Louisiana Highway 6
Louisiana Highway 6 runs in a southwest to northeast direction from the Texas state line southwest of Many, Sabine Parish to the junction of US 71 and US 84 in Clarence, Natchitoches Parish.Louisiana Highway 7
Louisiana Highway 7 ran in a north–south direction from US 71 in Coushatta, Red River Parish to the Arkansas state line at Springhill, Webster Parish.Louisiana Highway 8
Louisiana Highway 8 runs in a southwest to northeast direction from the Texas state line west of Burr Ferry, Vernon Parish to the concurrent US 425/LA 15 in Sicily Island, Catahoula Parish.Louisiana Highway 9
Louisiana Highway 9 runs in a north–south direction from the concurrent US 71/US 84 in Campti, Natchitoches Parish to the concurrent US 63/US 167 at the Claiborne–Union parish line in Junction City.Louisiana Highway 10
Louisiana Highway 10 runs in an east–west direction from US 171 south of Leesville, Vernon Parish to the Mississippi state line east of Bogalusa, Washington Parish.Louisiana Highway 12
Louisiana Highway 12 runs in an east–west direction from the Texas state line west of Starks, Calcasieu Parish to the junction of US 171 and US 190 in Ragley, Beauregard Parish.Louisiana Highway 13
Louisiana Highway 13 runs in a north–south direction from LA 14 west of Kaplan, Vermilion Parish to US 167 in Turkey Creek, Evangeline Parish.Louisiana Highway 14
Louisiana Highway 14 runs in an east–west direction from the junction of US 90 and US 171 in Lake Charles, Calcasieu Parish to LA 182 in New Iberia, Iberia Parish.Louisiana Highway 15
Louisiana Highway 15 runs in a north–south direction from the junction of LA 1 and LA 970 northwest of Lettsworth, Pointe Coupee Parish to the concurrent US 63/US 167 in Lillie, Union Parish.Louisiana Highway 16
Louisiana Highway 16 runs in a general east–west direction from LA 22 south of French Settlement, Livingston Parish to LA 21 in Sun, Washington Parish.Louisiana Highway 17
Louisiana Highway 17 runs in a north–south direction from the junction of US 425/LA 15, LA 4, and LA 130 in Winnsboro, Franklin Parish to the Arkansas state line at Kilbourne, West Carroll Parish.Louisiana Highway 18
Louisiana Highway 18 runs in an east–west direction from the junction of LA 1 and LA 3089 in Donaldsonville, Ascension Parish to the junction of US 90 Bus. and LA 23 in Gretna, Jefferson Parish.Louisiana Highway 19
Louisiana Highway 19 runs in a north–south direction from US 61 in Baton Rouge, East Baton Rouge Parish to the Mississippi state line north of Norwood, East Feliciana Parish.Louisiana Highway 20
Louisiana Highway 20 runs in a southwest to northeast direction from LA 182 in Gibson, Terrebonne Parish to LA 18 in Vacherie, St. James Parish.Louisiana Highway 21
Louisiana Highway 21 runs in a north–south direction from the junction of LA 22 and LA 1077 in Madisonville, St. Tammany Parish to the Mississippi state line north of Angie, Washington Parish.Louisiana Highway 22
Louisiana Highway 22 runs in an east–west direction from the junction of LA 75 and LA 942 in Darrow, Ascension Parish to US 190 in Mandeville, St. Tammany Parish.Louisiana Highway 23
Louisiana Highway 23 runs in a southeast to northwest direction from Jump Basin Road in Venice, Plaquemines Parish to a junction with LA 428 in Gretna, Jefferson Parish.Louisiana Highway 24
Louisiana Highway 24 runs in a general east–west direction from LA 20 in Schriever, Terrebonne Parish to LA 3235 in Larose, Lafourche Parish.Louisiana Highway 25
Louisiana Highway 25 runs in a north–south direction from US 190 in Covington, St. Tammany Parish to the Mississippi state line north of Warnerton, Washington Parish.Louisiana Highway 26
Louisiana Highway 26 runs in a northwest to southeast direction from the concurrent US 171/US 190 southeast of DeRidder, Beauregard Parish to LA 14 in Lake Arthur, Jefferson Davis Parish.Louisiana Highway 27
Louisiana Highway 27 runs in a general southeast to northwest direction from LA 14 at Holmwood, Calcasieu Parish to the junction of US 171 and US 190 in DeRidder, Beauregard Parish.Louisiana Highway 28
Louisiana Highway 28 runs in an east–west direction from the junction of US 171 and LA 8 in Leesville, Vernon Parish to US 84 west of Jonesville, Catahoula Parish.Louisiana Highway 29
Louisiana Highway 29 runs in a north–south direction from LA 13 north of Eunice, St. Landry Parish to LA 114 west of Moreauville, Avoyelles Parish.Louisiana Highway 30
Louisiana Highway 30 runs in a northwest to southeast direction from a point near I-10 in Baton Rouge, East Baton Rouge Parish to the junction of US 61 and LA 431 east of Gonzales, Ascension Parish.Louisiana Highway 31
Louisiana Highway 31 runs in a north–south direction from LA 182 in New Iberia, Iberia Parish to a second junction with LA 182 in Opelousas, St. Landry Parish.Louisiana Highway 32
Louisiana Highway 32 ran in a north–south direction along North Third Street from LA 30 to the Louisiana State Capitol building in Baton Rouge.Louisiana Highway 33
Louisiana Highway 33 runs in a north–south direction from US 80 in Ruston, Lincoln Parish to the Arkansas state line north of Marion, Union Parish.Louisiana Highway 34
Louisiana Highway 34 runs in a north–south direction from the junction of US 71 and LA 1239-2 in Montgomery, Grant Parish to the concurrent US 80/LA 15 in West Monroe, Ouachita Parish.Louisiana Highway 35
Louisiana Highway 35 runs in a north–south direction from LA 82 north of Forked Island, Vermilion Parish to US 190 in Lawtell, St. Landry Parish.Louisiana Highway 36
Louisiana Highway 36 runs in an east–west direction from LA 21 east of Covington to LA 41 northwest of Pearl River, St. Tammany Parish.Louisiana Highway 37
Louisiana Highway 37 runs in a southwest to northeast direction from the concurrent US 61/US 190 in Baton Rouge, East Baton Rouge Parish to LA 10 in Greensburg, St. Helena Parish.Louisiana Highway 38
Louisiana Highway 38 runs in an east–west direction from LA 10 in Coleman Town, St. Helena Parish to LA 430 south of Hackley, Washington Parish.Louisiana Highway 39
Louisiana Highway 39 runs in a general north–south direction from a local road southeast of Pointe à la Hache, Plaquemines Parish to I-10 in New Orleans, Orleans Parish.Louisiana Highway 40
Louisiana Highway 40 runs in an east–west direction from LA 43 southeast of Montpelier, Livingston Parish to LA 41 in Bush, St. Tammany Parish.Louisiana Highway 41
Louisiana Highway 41 runs in a north–south direction from the junction of US 11 and LA 3081 in Pearl River to LA 21 in Bush, St. Tammany Parish.Louisiana Highway 42
Louisiana Highway 42 runs in an east–west direction from LA 30 in Baton Rouge, East Baton Rouge Parish to the junction of LA 22 and LA 1037 in Springfield, Livingston Parish.Louisiana Highway 43
Louisiana Highway 43 runs in a north–south direction from LA 42 west of Springfield, Livingston Parish to the Mississippi state line north of Easleyville, St. Helena Parish.Louisiana Highway 44
Louisiana Highway 44 runs in a general east–west direction from LA 42 in Prairieville, Ascension Parish to US 61 in LaPlace, St. John the Baptist Parish.Louisiana Highway 45
Louisiana Highway 45 runs in a north–south direction from a dead end in Lafitte to a junction with LA 18 in Marrero, Jefferson Parish.Louisiana Highway 46
Louisiana Highway 46 runs in an east–west direction from the junction of LA 39 and LA 3021 in New Orleans, Orleans Parish to a dead end in Shell Beach, St. Bernard Parish.Louisiana Highway 47
Louisiana Highway 47 runs in a general southeast to northwest direction from a local road in Chalmette, St. Bernard Parish to the junction of two local roads in New Orleans, Orleans Parish.Louisiana Highway 48
Louisiana Highway 48 runs in an east–west direction from US 61 in Norco, St. Charles Parish to the junction of US 90 and LA 3152 in Elmwood, Jefferson Parish.Louisiana Highway 49
Louisiana Highway 49 runs in a general north–south direction from US 61 to the junction of two local roads in Kenner, Jefferson Parish.Louisiana Highway 50
Louisiana Highway 50 runs in a north–south direction along Almedia Road in St. Rose, St. Charles Parish.The route heads northward from an intersection with LA 48 at the Mississippi River, crossing both the Canadian National Railway and Kansas City Southern Railway tracks at grade, to a point on US 61 just east of an interchange with I-310. It is an undivided two-lane highway for its entire length.
LA 50 was created in the 1955 Louisiana Highway renumbering, and its route has remained the same to the present day.
Louisiana Highway 52
Louisiana Highway 52 runs in a north–south direction from the junction of US 90 and LA 633 in Boutte to LA 18 in Luling, St. Charles Parish.Louisiana Highway 53
Louisiana Highway 53 runs in a north–south direction along Central Avenue in Reserve, St. John the Baptist Parish.The route begins at the intersection of LA 44 and LA 640 opposite the defunct Edgard–Reserve Ferry landing at the Mississippi River. It proceeds northward along Central Avenue, crossing both the Canadian National Railway and Kansas City Southern Railway tracks at grade, to a junction with US 61. LA 53 is an undivided two-lane highway for its entire length.
LA 53 was created in the 1955 Louisiana Highway renumbering, and its route has remained the same to the present day.
Louisiana Highway 54
Louisiana Highway 54 runs in a north–south direction from LA 44 to US 61 in Garyville, St. John the Baptist Parish.Louisiana Highway 55
Louisiana Highway 55 runs in a north–south direction from a dead end south of Montegut to a junction with LA 24 in Bourg, Terrebonne Parish.Louisiana Highway 56
Louisiana Highway 56 runs in a north–south direction from a local road in Cocodrie to a junction with LA 24 in Houma, Terrebonne Parish.The route heads north from Cocodrie and follows Little Caillou Road along the west bank of Bayou Petit Caillou. It intersects the southern terminus of LA 57 and proceeds north, eventually crossing a swing bridge over a canal connecting with Lake Boudreaux. LA 56 passes through the community of Chauvin and intersects LA 58, a short connector to the parallel LA 55 at Montegut. Curving to the northwest, LA 56 skirts the Houma city limits and becomes known as East Main Street. The route proceeds a short distance further to a T-intersection with LA 24 next to the Houma–Terrebonne Airport in an area known as Presque Isle. LA 56 is an undivided two-lane highway for its entire length.
Louisiana Highway 57
Louisiana Highway 57 runs in a north–south direction from LA 56 north of Cocodrie to LA 24 in Houma, Terrebonne Parish.Louisiana Highway 58
Louisiana Highway 58 runs in an east–west direction along Sarah Road, a short connector between LA 56 in Chauvin and LA 55 in Montegut, Terrebonne Parish.LA 56 and LA 55 travel along opposite banks of Bayou Terrebonne and Bayou Petit Caillou, respectively. LA 58 crosses a vertical lift bridge over each waterway to connect the two highways southeast of Houma. It is an undivided two-lane highway for its entire length.
In the pre-1955 state highway system, LA 58 was designated as State Route 969. LA 58 was created in the 1955 Louisiana Highway renumbering, and its route has remained the same to the present day.
Louisiana Highway 59
Louisiana Highway 59 runs in a north–south direction from US 190 in Mandeville to LA 21 north of Abita Springs, St. Tammany Parish.Louisiana Highway 60
Louisiana Highway 60 runs in an east–west direction from LA 16 in Enon to LA 10 in Bogalusa, Washington Parish.The highway follows a winding rural alignment northeast from Enon. The route intersects LA 1072 at Plainview, connecting with Franklinton Airport. Proceeding eastward, LA 60 makes a right-angle turn northward to a T-intersection with LA 439. The route turns east into Bogalusa, where it becomes known as West 10th Street, and makes several zigzags through the city's street grid: north onto Avenue K, east onto the continuation of West 10th Street, north onto Avenue F, east onto West 9th Street, and finally north onto Avenue B. The roadway widens first to a divided two-lane highway then to an undivided four-lane highway as the surroundings transition from residential to commercial. After passing Bogalusa High School, LA 60 narrows to two lanes once again and crosses the Bogue Lusa Creek onto Cumberland Street. Cumberland Street soon branches off to the northeast, and LA 60 proceeds due north on Shenandoah Street a short distance to its terminus at LA 10, the city's main east–west thoroughfare.