Wiki Info:
LA 182 is a state highway that runs a circuitous route from just north of Opelousas to Raceland. Most of the route was formerly part of the Old Spanish Trail, and the road is called that in many places to this day.
History
The original 1955 designated route of LA 182 was far shorter than its present extent; the original extent of the route comprised the current northernmost section, from LA 29 at Whiteville to LA 10 at Baggs (the current northern end of the modern LA 10/182 concurrency). The route was first extended south ca. 1965, as US 167 between Washington and Lafayette was modernized onto a parallel expressway alignment which was eventually absorbed into the southernmost part of the route of I-49. Later as US 90 between Lafayette and Morgan City was upgraded onto an expressway alignment through the late 1960s and 1970s, LA 182 was gradually extended along its old route through Lafayette southeastward, growing year by year as the expressway was gradually extended eastward. The final extension of LA 182, to Raceland, occurred in 1999 with the completion of the US 90 freeway between Morgan City and Raceland.