List of original highways in Louisiana (51–100)
The following is a list of state highways in the U.S. state of Louisiana designated in the 51-100 range prior to the 1955 Louisiana Highway renumbering.
Louisiana State Route 51
Louisiana State Route 52
Louisiana State Route 52 ran in a general east–west direction from US 171/US 190/State Route 42 southeast of DeRidder, Beauregard Parish to the junction of US 165/State Route 24 and State Route 25 in Oberlin, Allen Parish.Louisiana State Route 53
Louisiana State Route 53 ran in a north–south direction from State Route 1 in LaPlace to the junction of State Route 33 and State Route 1141 in Frenier, St. John the Baptist Parish. Most of the route was concurrent with US 51.Louisiana State Route 54
Louisiana State Route 55
Louisiana State Route 55 ran in a north–south direction from the junction of US 79/US 80/State Route 4 in Shreveport, Caddo Parish to the Arkansas state line north of Ida. The route was entirely concurrent with US 71. The above mileage reflects a gap in the route between Dixie and Gilliam, as that portion of the highway was being relocated at the time of the 1955 Louisiana Highway renumbering.Louisiana State Route 56
Louisiana State Route 56 ran in a general east–west direction from US 90/State Route 2 in New Iberia to a dead end at Lake Dauterive in Iberia Parish.Much of the route became a portion of LA 86 in the 1955 renumbering; the section from Loreauville to Lake Dauterive became LA 3242.
Louisiana State Route 57
Louisiana State Route 57 ran in a general north–south direction, existing as two disconnected sections. The southern portion extended from State Route 5 north of Marksville, Avoyelles Parish to State Route 123 northeast of Holloway, Rapides Parish. The northern portion extended from a dead end at the Little River to the junction of US 84, State Route 6, and State Route 19 in Jena, LaSalle Parish.Louisiana State Route 57-D
Louisiana State Route 57-D ran in a general east–west direction, branching off of State Route 57 north of Effie, Avoyelles Parish and extending to US 165/State Route 14 in Pineville, Rapides Parish.Louisiana State Route 58
Louisiana State Route 59
Louisiana State Route 60
Louisiana State Route 60 ran in a north–south direction from a dead end at East Cote Blanche Bay to US 90/State Route 2 in Centerville, St. Mary Parish.SR 60 was renumbered as LA 317 in the 1955 renumbering.
Louisiana State Route 61
Louisiana State Route 61 ran in a north–south direction from State Route 1 in Chalmette, St. Bernard Parish to US 90/State Route 2 in New Orleans, Orleans Parish.Louisiana State Route 62
Louisiana State Route 62 ran in a north–south direction from a dead end in Delacroix to State Route 32 west of Yscloskey, St. Bernard Parish.Louisiana State Route 63
Louisiana State Route 63 ran in a general north–south direction from State Route 1 in Geismar, Ascension Parish to a second junction with State Route 1 in Baton Rouge, East Baton Rouge Parish.Louisiana State Route 64
Louisiana State Route 64 ran in a north–south direction from State Route 17 northeast of Columbia, Caldwell Parish to State Route 47 south of Rayville, Richland Parish.Louisiana State Route 65
Louisiana State Route 66
Louisiana State Route 67
Louisiana State Route 67 ran in a general east–west direction in two disconnected segments. The western portion extended from State Route 15 at Foules, Catahoula Parish to a dead end at the Tensas River. The route resumed on the opposite bank of the river in Tensas Parish, extending to US 65/State Route 3 in Waterproof.Louisiana State Route 68
Louisiana State Route 68 ran in a north–south direction from State Route 18 in Harrisonburg to the junction of US 165/State Route 14 and State Route 110 in Grayson.Louisiana State Route 69
Louisiana State Route 70
Louisiana State Route 71
Louisiana State Route 71 ran in a west-east direction from Chipola to Clifton. SR 71 formerly turned south and overlapped current LA 25 to Franklinton, but this was removed after 1937.SR 71 became a portion of LA 38 in the 1955 renumbering.
Louisiana State Route 72
Louisiana State Route 72 ran in a general east–west direction from State Route 5 west of Fifth Ward to State Route C-1471 in Mansura, Avoyelles Parish.Louisiana State Route 72-D
Louisiana State Route 73
Louisiana State Route 73 ran in a north–south direction from State Route 1 west of Port Allen to State Route 30 in Erwinville, West Baton Rouge Parish.Louisiana State Route 74
Louisiana State Route 74 ran in a north-south direction from SR 3 near Lindsay to SR 35 near Jackson.The route became a portion of LA 68 in the 1955 renumbering.
Louisiana State Route 75
Louisiana State Route 76
Louisiana State Route 76 ran in an east–west direction from State Route 48 southwest of Newlight to State Route C-2171 in Newellton, Tensas Parish.The route became a portion of LA 4 in the 1955 renumbering.
Louisiana State Route 77
Louisiana State Route 78
Louisiana State Route 79
Louisiana State Route 80
Louisiana State Route 81
Louisiana State Route 81 ran in a south-north direction from Sea Breeze to Montegut.The route became the southern portion of LA 55 in the 1955 renumbering.
Louisiana State Route 82
Louisiana State Route 83
Louisiana State Route 84
Louisiana State Route 85
Louisiana State Route 85 ran in an east–west direction from State Route 21 in Hineston to US 165/State Route 205 north of Forest Hill, Rapides Parish.Louisiana State Route 86
Louisiana State Route 86 ran in an east-west direction from St. Martinville to Catahoula.The route became the eastern portion of LA 96 in the 1955 renumbering.
Louisiana State Route 87
Louisiana State Route 88
Louisiana State Route 89
Louisiana State Route 90
Louisiana State Route 91
Louisiana State Route 91 ran in a north-south direction from Norwood to Slaughter.The route became the northern portion of LA 19 in the 1955 renumbering.
Louisiana State Route 92
Louisiana State Route 92 ran in a general north–south direction from US 71/State Route 1 in Morrow, St. Landry Parish to State Route 30 in Cottonport, Avoyelles Parish.Louisiana State Route 93
Louisiana State Route 93 ran in a general north–south direction from State Route 30 at Lakeland to a second junction with Route 30 in New Roads, Pointe Coupee Parish.Louisiana State Route 94
Louisiana State Route 94 ran in a general north–south direction from State Route 1288 north of Lake Providence to State Route 3-D at Highland.Louisiana State Route 95
Louisiana State Route 96
Louisiana State Route 97
Louisiana State Route 98
Louisiana State Route 98 ran in a general west-east direction from Holmwood to Lake Arthur.The route became a portion of LA 14 in the 1955 renumbering.