From the west, LA 38 begins at a junction with
LA 10 about midway between
Clinton and
Greensburg. The junction is located in
Coleman Town, a small rural community in
St. Helena Parish. The undivided two-lane highway briefly heads northeast to
Chipola, intersecting
LA 432, then turns due east to
Easleyville. Here, LA 38 crosses
LA 43, another connection to the
parish seat at Greensburg. Just east of Easleyville, the highway crosses the
Tickfaw River and has a short concurrency with
LA 441, which parallels LA 43 throughout the parish. later, LA 38 crosses into
Tangipahoa Parish. LA 38 enters the town of Kentwood and becomes known locally as Avenue G. The highway passes through a
diamond interchange with
I-55 at exit 61, connecting with
Hammond, Louisiana to the south and
Jackson, Mississippi to the north. Widening to an undivided four-lane highway, LA 38 serves as the town's primary east–west thoroughfare and passes a number of small businesses. After several blocks, the route intersects
US 51 (3rd Street), which serves local traffic along the I-55 corridor. Narrowing back to two lanes, LA 38 crosses the parallel
Canadian National Railway (CN) line at grade and exits the town at the first of several small bridges over the
Tangipahoa River and its tributaries. East of Kentwood, LA 38 intersects
LA 1054 and
LA 1061 just north of
Spring Creek and exits Tangipahoa Parish about beyond an intersection with
LA 1056. Crossing into
Washington Parish, LA 38 has a brief concurrency with
LA 450 north of
Sunny Hill and loops northward to pass through the small community of
Mount Hermon. Turning back to the south, LA 38 intersects
LA 438 at the center of the community. Over the next , the highway gradually resumes its eastward course before crossing the sandy beaches of the
Bogue Chitto River. It then intersects
LA 25 at
Clifton, connecting with
Franklinton, Louisiana to the south and
Tylertown, Mississippi to the north. LA 38 follows a serpentine alignment for its final and terminates at a junction with
LA 430 south of
Hackley.
Route classification and data LA 38 is classified by the
Louisiana Department of Transportation and Development (La DOTD) as a rural major collector, except for the portion east of Clifton, which is a rural minor collector. Daily traffic volume in 2013 peaked at 7,000 vehicles in Kentwood and tapered to less than 2,000 vehicles at either end of the route. The posted speed limit is for most of the route but is reduced to within Kentwood and Mount Hermon. ==History==