Louisiana Highway 3

Louisiana Highway 3
Route of LA 3 highlighted in red
Route information
Maintained by Louisiana DOTD
Length	35.705 mi[1] (57.462 km)
Existed	1955 renumbering–present
Major junctions
South end	I-20 / US 71 / LA 72 in Bossier City
Major intersections	US 79 / US 80 in Bossier City I-220 in Bossier City LA 2 in Plain Dealing
North end	AR 29 at Arkansas state line north of Plain Dealing
Location
Country	United States
State	Louisiana
Parishes	Bossier
Highway system
Louisiana State Highway System Interstate US State Scenic
← LA 2 → LA 4

Louisiana Highway 3 (LA 3) is a state highway located in Bossier Parish, Louisiana. It runs 35.71 miles (57.47 km) in a north–south direction from the junction of Interstate 20 (I-20), U.S. Highway 71 (US 71), and LA 72 in Bossier City to the Arkansas state line north of Plain Dealing.

LA 3 connects Bossier City, the largest city in Bossier Parish, with the town of Benton, the parish seat. Apart from the interchange with I-20 and US 71 at its southern terminus, LA 3 also connects to I-220, the northern bypass of Shreveport and Bossier City. North of Benton, LA 3 passes through Plain Dealing, where it intersects LA 2, Louisiana's northernmost cross-state route.