From the south, LA 89 begins at a junction with
LA 14 (Veterans Memorial Drive) in the
Vermilion Parish town of
Delcambre. LA 14 is a four-lane highway connecting with
Abbeville to the west and
New Iberia to the east. LA 89 heads north, running parallel to the
Iberia Parish line as it bends around the western shore of
Lake Peigneur. The highway briefly passes into the northwest corner of Iberia Parish in an area known as
Lozes. Here, a T-intersection with
LA 88 (Coteau Road) provides a connection to
US 90 straight ahead. LA 89 turns west onto Youngsville Road at this junction and crosses into
Lafayette Parish. In Lafayette Parish, LA 89 makes several right-angle turns as it travels into the suburban city of
Youngsville. It turns north onto Austin Road, west onto Piat Road across the corporate limits, and north onto Guillot Road. The highway passes a series of small residential subdivisions set among the sugar fields and intersects a growing suburban thoroughfare known as Chemin Metairie Parkway via
roundabout. In the center of Youngsville, LA 89 turns west onto Avenue B for one block, then north onto First Street for two blocks to an intersection with Church Street. Here, the LA 89 designation and state maintenance officially end. Through traffic turns east onto Church Street, which immediately curves north onto Lafayette Street, and proceeds to a second roundabout at Iberia Street (a decommissioned portion of
LA 92). From this junction, Iberia Street connects with the communities of
Milton and
Maurice to the west and US 90 to the east. State maintenance resumes northward as LA 89-1.
Route classification and data LA 89 is an undivided two-lane highway for its entire length. It is classified by the
Louisiana Department of Transportation and Development (La DOTD) as a rural minor collector in Vermilion Parish, an urban collector in Iberia Parish and unincorporated Lafayette Parish, and an urban minor arterial in Youngsville. Daily traffic volume in 2013 ranged between 3,400 and 4,500 vehicles over the entire route. The posted speed limit is generally , reduced to in the center of Youngsville. ==History==