Outside Winnfield and the Monroe metropolitan area, LA 34 is an entirely rural highway that passes through the occasional small community.

The highway curves to the northeast and, over the next 14.5 miles (23.3 km), passes through the tiny rural communities of Mt.

[2][3][4][5] Six miles (9.7 km) northeast of Sardis, LA 34 enters the city of Winnfield, the seat of Winn Parish.

After a short distance, the route turns northeast at a Y-intersection with Maple Street and exits the Winnfield corporate limits.

[2][5][6] After crossing the Dugdemona River northeast of Winnfield, US 84 branches off of LA 34 in Joyce and heads toward Tullos.

The alignment of LA 34 straightens out for about seven miles (11 km) as the highway passes along the east side of the Caney Creek Reservoir and Jimmie Davis State Park.

[2][8][9] The highway enters the city of West Monroe and crosses the KCS railroad tracks a final time before engaging in a modified cloverleaf interchange with I-20 at exit 115.

Outside the Monroe metropolitan area, traffic counts generally stayed between 1,300 and 3,500 vehicles with a low of 410 reported near the southern terminus in Montgomery.

With the 1955 renumbering, the state highway department initially categorized all routes into three classes: "A" (primary), "B" (secondary), and "C" (farm-to-market).

LA 34 has seen only minor changes over the years that have mostly resulted from the straightening of curves and the replacement of bridges on the route.

[15][16] In the 1970s, LA 34 was shifted onto a newly constructed parallel alignment south of Bawcomville, eliminating two railroad crossings.

In 2006, the highway was streamlined through Winnfield when a new overpass was constructed across the Kansas City Southern Railway line.

Finally, a curve was eliminated north of Hudson in Winn Parish around 2009 as part of a resurfacing project.