From the south, LA 86 begins at an intersection with
LA 182 in
New Iberia. LA 182 follows the one-way couplet of Main and St. Peter Streets through the city's Historic Commercial District. LA 86 proceeds northeast on Julia Street for one block through the couplet then makes a zigzag onto Main Street for half a block. The route turns northeast on Bridge Street and crosses a
bascule bridge over
Bayou Teche, which flows through the center of town. Now known as Duperier Avenue, LA 86 proceeds through a residential neighborhood and intersects
LA 87 at Oak Street. LA 87 mirrors the route of LA 182 on the opposite bank of Bayou Teche toward
Jeanerette. After several blocks, LA 86 turns eastward onto Loreauville Road and parallels the bayou to the east end of New Iberia. Just outside the city limits, LA 87 passes through an area known as
Morbihan, where it intersects
LA 344 (Sugar Oaks Road) and
LA 3195 (Emile Verret Road). later, LA 86 intersects
LA 320 (Belle Place-Olivier Road), which heads southwest to
Olivier between New Iberia and Jeanerette. LA 86 curves northward with Bayou Teche as the residential development thins out somewhat, giving way to more rural farmland. After crossing the Loreauville Canal, the highway passes through an area known as
Vida. Soon afterward, it enters the village of
Loreauville and travels along Main Street. At the intersection of Main and Bridge Streets, LA 86 has a second junction with LA 344 at the opposite end of its route. Soon afterward, LA 86 intersects
LA 3242, which travels eastward to
Dauterive Landing on the shore of
Lake Dauterive. The posted speed limit is generally , reduced to through St. Martinville and through Loreauville. ==History==