List of state highways in Louisiana (400–449)
The following is a list of state highways in the U.S. state of Louisiana designated in the 400-449 range.
Louisiana Highway 400
Louisiana Highway 400 runs in an east–west direction from a local road northeast of Attakapas Landing to LA 1 north of Supreme, Assumption Parish.From the west, LA 400 begins at the east end of a bridge across the Cancienne Canal. It continues the path of a local road that begins at a junction with LA 401 just north of Attakapas Landing on Lake Verret. LA 400 heads eastward and intersects LA 1011 and LA 1010 before ending at a junction with LA 1 opposite Bayou Lafourche. LA 400 is an undivided two-lane highway for its entire length.
Louisiana Highway 401
Louisiana Highway 401 runs in a southwest to northeast direction from a dead end at Lake Verret in Attakapas Landing to a junction with LA 1 in Napoleonville, Assumption Parish. The route's mileposts increase from the eastern end contrary to common practice.Louisiana Highway 402
Louisiana Highway 402 runs in an east–west direction from a local road west of Brusle St. Vincent to LA 308 north of Napoleonville, Assumption Parish. The route's mileposts increase from the eastern end contrary to common practice.Louisiana Highway 403
Louisiana Highway 403 runs in a north–south direction from LA 402 at Brusle St. Vincent to LA 308 at Paincourtville, Assumption Parish.Louisiana Highway 404
Louisiana Highway 404 runs in an east–west direction from LA 75 at Choctaw to LA 69 at Samstown, Iberville Parish. The route's mileposts increase from the eastern end contrary to common practice.Louisiana Highway 405
Louisiana Highway 405 runs in a general north–south direction from LA 1 west of Donaldsonville, Ascension Parish to the junction of LA 1 and LA 75 in Plaquemine, Iberville Parish.Louisiana Highway 406
Louisiana Highway 406 runs in a north–south direction from LA 23 in Belle Chasse, Plaquemines Parish to the junction of two local roads in New Orleans, Orleans Parish. It provides access to the Woodland Bridge across the Gulf Intracoastal Waterway for Belle Chasse and an area of New Orleans known as the Algiers Lower Coast.LA 406 heads north from LA 23 in Belle Chasse. Traveling along Woodland Highway, the route passes a series of newer residential subdivisions. The roadway curves to the northeast, traversing a corner of Orleans Parish, and passes a small cluster of industrial facilities located alongside the Gulf Intracoastal Waterway. LA 406 proceeds straight ahead and crosses from Plaquemines Parish again into Orleans Parish, simultaneously re-entering the New Orleans city limits. After crossing underneath the Woodland Bridge, LA 406 engages in a roundabout with LA 407, which loops around onto the bridge and across the waterway. The highway then passes the entrance to the upscale English Turn residential community and country club. LA 406 curves due east onto Patterson Drive along the Mississippi River levee and proceeds to an intersection with Stanton Road. River Road continues as a local road until reaching the U.S. Coast Guard station later.
Louisiana Highway 407
Louisiana Highway 407 runs in a north–south direction from LA 406 to LA 428 in New Orleans, Orleans Parish. The route connects General de Gaulle Drive, a major thoroughfare through the Algiers area of the city, with LA 406 via the Woodland Bridge across the Gulf Intracoastal Waterway.LA 407 begins at a roundabout junction with LA 406 near the English Turn residential subdivision in the Lower Coast Algiers area of New Orleans. The divided four-lane highway loops to the north and proceeds across the high-level Woodland Bridge over the Gulf Intracoastal Waterway, located along the Orleans–Plaquemines parish line. Returning to grade, LA 407 intersects General de Gaulle Drive, which continues ahead through Algiers toward the Crescent City Connection bridge spanning the Mississippi River in Downtown New Orleans. LA 407 turns north from this junction onto Woodland Drive and narrows to an undivided four-lane highway. The route continues in this capacity through the residential Old Aurora neighborhood until reaching an intersection with LA 428.
Louisiana Highway 408
Louisiana Highway 408 runs in an east–west direction from a local road in Baton Rouge to a junction with the concurrent LA 37/LA 64 in Central, East Baton Rouge Parish. The route connects northern Baton Rouge with Greenwell Springs, a rural community within the Central city limits.LA 408 begins on Harding Boulevard at the west end of the Canadian National Railway/Kansas City Southern Railway overpass alongside the Southern University campus. This terminus is located in an area within the Baton Rouge city limits known as Scotlandville. LA 408 heads east across the overpass as a divided four-lane highway and intersects US 61. Several blocks later, the highway passes through an interchange with I-110 at exit 6, connecting to Downtown Baton Rouge and Natchez, Mississippi. Jutting out from this junction is Veterans Memorial Boulevard, a local road that provides access to Baton Rouge Metropolitan Airport. After passing along the south side of the airport, LA 408 crosses LA 67, and the local name changes from Harding Boulevard to Hooper Road. after exiting the Baton Rouge city limits, LA 408 crosses the Comite River into the suburban city of Central. Over the next are junctions with LA 410, LA 946, and LA 3034. During this stretch, LA 408 narrows to an undivided two-lane highway. It continues northeast in this capacity until reaching a junction with LA 37/LA 64, which parallels the Amite River.
Louisiana Highway 409
Louisiana Highway 409 runs in a north–south direction from LA 64 in Central, East Baton Rouge Parish to LA 959 at Blairstown, East Feliciana Parish.LA 409 heads north on Liberty Road from a T-intersection with LA 64 in area within the Central city limits known as Indian Mound. The highway travels about to the community of Pride, where it curves east onto Pride-Baywood Road then turns north onto Riley Road. North of Pride, LA 409 crosses from East Baton Rouge Parish into East Feliciana Parish and proceeds to a junction with LA 959 at Blairstown. LA 409 is an undivided two-lane highway for its entire length. As of 2018, the portion in East Baton Rouge Parish is under agreement to be removed from the state highway system and transferred to local control.
Louisiana Highway 410
Louisiana Highway 410 runs in a north–south direction along Blackwater Road from LA 408 to LA 64 in Central, East Baton Rouge Parish.Louisiana Highway 411
Louisiana Highway 411 runs in a north–south direction from LA 76 in Rosedale, Iberville Parish to the junction of US 190 and LA 78 in Livonia, Pointe Coupee Parish. The route's mileposts increase from the northern end contrary to common practice.LA 411 heads northwest from LA 76 in Rosedale alongside the east bank of Bayou Grosse Tete. After about, the route passes along the eastern edge of Maringouin, which is accessed by bridge via LA 977. Shortly afterward, the highway crosses from Iberville Parish into Pointe Coupee Parish. LA 411 continues along the bayou until reaching a junction with US 190 in Livonia, connecting with the cities of Baton Rouge and Opelousas. LA 78 continues the path of the roadway northward toward New Roads. LA 411 is an undivided two-lane highway for its entire length.
Louisiana Highway 412
Louisiana Highway 412 runs in an east–west direction from LA 964 west of Slaughter to LA 67 east of Slaughter, East Feliciana Parish.Louisiana Highway 413
Louisiana Highway 413 runs in a north–south direction from LA 76 south of Erwinville, West Baton Rouge Parish to LA 1 Bus. in New Roads, Pointe Coupee Parish.Prior to the 1955 highway number redesignations, the current LA Highway 413 ran along road beds that were parts of LA State Route 73, LA State Route 139, and LA State Route 135 of the old numbering system. The portion of the highway from Rosedale Road that runs north to near False River was the old LA State Route 73 portion. The portion that runs along False River and carries the local name "Island Road" was the old LA State Route 139 portion. The portion of the current highway that runs east-west from near Patin Dyke to New Roads was the old LA State Route 135 portion.
LA 413 heads north on Poydras Bayou Drive from LA 76 in West Baton Rouge Parish. It crosses the concurrent US 190/LA 1 in Erwinville. The highway then skirts the Pointe Coupee Parish line for a short time before crossing it at a junction with LA 3091. LA 413 makes a brief zigzag onto LA 416 in Lakeland. Shortly afterward, the route turns west at an intersection with LA 414 and makes a long loop alongside False River through Jarreau and Dupont to Ventress. Here, LA 413 meets LA 414 a second time and turns north briefly to a junction with LA 415 at Patin. The highway turns west once again and enters the city of New Roads, where it terminates at a junction with LA 1 Bus. at the corner of Main and New Roads Streets. LA 413 is an undivided two-lane highway for its entire length.
Louisiana Highway 414
Louisiana Highway 414 runs in a general north–south direction from LA 413 north of Lakeland to a second junction with LA 413 at Ventress, Pointe Coupee Parish. The route travels in a loop off of LA 413 around an area between the False River and Mississippi River known as "The Island".LA 414 heads northeast from LA 413 through Chenal and across the Kansas City Southern Railway line to a junction with LA 415 at the Mississippi River levee. The route turns north alongside the levee and travels concurrent with LA 415 for. LA 414 then turns west and proceeds back across the KCS rail line to its terminus at LA 414 in Ventress. It is an undivided two-lane highway for its entire length.