Louisiana Highway 420

Louisiana Highway 400
Location:	Assumption Parish
Length:	5.746 mi (9.247 km)
Existed:	1955–present

Louisiana Highway 401
Location:	Attakapas Landing–Napoleonville
Length:	9.407 mi (15.139 km)
Existed:	1955–present

Louisiana Highway 402
Location:	Assumption Parish
Length:	5.070 mi (8.159 km)
Existed:	1955–present

Louisiana Highway 403
Location:	Brusle St. Vincent–Paincourtville
Length:	2.878 mi (4.632 km)
Existed:	1955–present

Louisiana Highway 404
Location:	Choctaw–Samstown
Length:	8.230 mi (13.245 km)
Existed:	1955–present

Louisiana Highway 405
Location:	McCall–Plaquemine
Length:	29.346 mi (47.228 km)
Existed:	1955–present

Louisiana Highway 406
Location:	Belle Chasse–Stanton
Length:	6.002 mi (9.659 km)
Existed:	1955–present

Louisiana Highway 407
Location:	New Orleans
Length:	2.556 mi (4.113 km)
Existed:	1955–present

Louisiana Highway 408
Location:	Baton Rouge–Greenwell Springs
Length:	12.281 mi (19.764 km)
Existed:	1955–present

Louisiana Highway 409
Location:	Indian Mound–Blairstown
Length:	11.256 mi (18.115 km)
Existed:	1955–present

The following is a list of state highways in the U.S. state of Louisiana designated in the 400-449 range.

Louisiana Highway 400 (LA 400) runs 5.75 miles (9.25 km) 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.

The entire highway is in Assumption Parish.

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Wikipedia