In 1965, the route was extended from its original eastern terminus in Mansura over the former alignment of LA 1, which was moved to a straighter path along the Kansas City Southern Railway line.

LA 114 crosses the Kansas City Southern Railway (KCS) at grade then follows the rail line southeast through a rural area known as Belle d'Eau.

Here, the highway crosses Choctaw Bayou just outside the Grand Cote National Wildlife Refuge.

Exiting Hessmer, LA 114 proceeds a short distance into the larger town of Mansura, where it becomes known as Baton Rouge Avenue.

[2][4][5] After cutting across a small bend in the waterway, LA 114 closely follows Bayou Des Glaises as it winds its way into the village of Moreauville.

From this junction, located just west of Hamburg, LA 1 provides connections to Marksville and Alexandria to the north, as well as the aforementioned southbound destinations.

[9] They were the main routes connecting central Avoyelles Parish with the major population centers of Baton Rouge and Alexandria, respectively.

[4][12] La DOTD is currently engaged in a program that aims to transfer about 5,000 miles (8,000 km) of state-owned roadways to local governments over the next several years.

[17] Under this plan of "right-sizing" the state highway system, the entirety of LA 114 east of Mansura is proposed for deletion as it no longer meets a significant interurban travel function.