The route heads north along the west bank levee of the Atchafalaya River into Krotz Springs, where it crosses the Union Pacific Railroad (UP) line at Main Street. LA 105 then passes underneath the twin spans of the US 190 Atchafalaya River bridge between Baton Rouge and Opelousas. LA 105 proceeds north along the river for 10.9 miles (17.5 km) to the town of Melville, where it makes a zigzag via LA 10 (LaFleur Street) next to the defunct Melville Ferry landing. Continuing north from Melville, LA 105 passes through Bayou Current and intersects LA 360.[2][3][4] It then crosses from St. Landry Parish into Avoyelles Parish and continues 10.4 miles (16.7 km) further to its terminus at LA 1 at the foot of the Atchafalaya River bridge in Simmesport.[2][5][6]
LA 110 initially heads from US 190 and travels through the town of Merryville. After passing the local high school, the route turns to the southeast and travels 9.6 miles (15.4 km) to a junction with LA 27 at Singer. Here, LA 110 turns south onto LA 27 for a short distance before resuming its southeastward course. Over the next few miles, the highway curves east and south along rural section line roads before heading due east for 6.8 miles (10.9 km). LA 110 curves slightly along the south of Longville Lake before reaching its eastern terminus at US 171/US 190 in Longville.
Louisiana Highway 114 (LA 114) runs 20.86 miles (33.57 km) from LA 1 in Echo to LA 1/LA 451 east of Moreauville. LA 114 was portions of SR 30, SR 72 and SR 299 before 1955.
Louisiana Highway 120 (LA 120) exists in two sections, running a total of 36.24 miles (58.32 km) in an east–west direction. The western section extends from US 171 in Zwolle, Sabine Parish to a point just south of Robeline, Natchitoches Parish.[19] The eastern section extends from LA 117 in Provencal to a junction with LA 1 and LA 494 south of Natchez, Natchitoches Parish.[20]
The route heads east from LA 4 and intersects the concurrent US 425 and LA 15 in Gilbert. LA 128 turns north to follow US 425/LA 15 briefly before splitting to the northeast toward Como. Here, it intersects LA 4 once again and runs concurrent with that highway east across the Tensas River, where it crosses from Franklin Parish into Tensas Parish.[25][26][27] Shortly afterward, LA 128 separates from LA 4 and heads southeast to a point known as Avondale. LA 128 makes a zigzag via US 65 then proceeds south to its terminus in St. Joseph.[25][27][28]
Louisiana Highway 148 (LA 148) exists in two sections, running a total of 15.65 miles (25.19 km) in an east–west direction. The western section extends from a junction with US 167 and LA 818 at Clay to LA 146 at Vernon, Jackson Parish.[39] The eastern section extends from a point southwest of Eros, Jackson Parish, to the Ouachita Parish line.[40]
Louisiana Highway 149 (LA 149) runs 2.74 miles (4.41 km) in a north–south direction along R.W.E. Jones Drive in Grambling, Lincoln Parish.[41] It serves as the principal north–south thoroughfare through the town and connects Grambling State University to both I-20 and the parallel US 80.
The route begins at US 80 near the southern limit of Grambling, an area known as Grambling Corners. LA 149 heads north as an undivided two-lane highway through a rural residential area. After a short distance, the highway widens to four lanes as it begins to pass through the middle of the Grambling State University campus. At College Avenue, LA 149 exits the campus and becomes a two-lane highway once again. It then crosses the Kansas City Southern Railway (KCS) tracks via an overpass and intersects LA 150 (West Martin Luther King Jr. Avenue). LA 149 then curves to the northeast and passes through an interchange with I-20 at Exit 81, leading toward Monroe and Shreveport. State maintenance ends immediately afterward at an intersection with Parish Road 333 (North Pinetree Road), and R.W.E. Jones Drive proceeds northward as a local road.[41][42][43]
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). St. Landry Parish (East Section)(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). District 03: Official Control Section Map, Construction and Maintenance(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Avoyelles Parish (South Section)(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^ abcLouisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). District 08: Official Control Section Map, Construction and Maintenance(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Allen Parish(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^ abLouisiana Department of Transportation and Development, Office of Multimodal Planning (July 2012). District 07: Official Control Section Map, Construction and Maintenance(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Beauregard Parish (East Section)(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Vernon Parish (East Section)(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Rapides Parish (West Section)(PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved July 11, 2017.
^Franklin Parish(PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 20, 2013.
^Tensas Parish(PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 20, 2013.
^ abLincoln Parish(PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 31, 2013.
^Lincoln Parish (Map) (January 1, 1955 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1948.
^"Act No. 40, House Bill No. 311". State-Times. Baton Rouge. June 18, 1955. pp. 3B –4B.
^Lincoln Parish (Map) (January 1, 1958 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1956.
^Louisiana (Map). Cartography by Louisiana Department of Highways. Louisiana Department of Highways. 1960.
^Louisiana (Map). Cartography by Louisiana Department of Highways. Louisiana Department of Highways. 1963.