Louisiana Highway 43

Louisiana Highway 43
Route of LA 43 highlighted in red
Route information
Maintained by Louisiana DOTD
Length	44.380 mi[1] (71.423 km)
Existed	1955 renumbering–present
Major junctions
South end	LA 42 west of Springfield
Major intersections	I-12 south of Albany US 190 in Albany LA 40 southeast of Montpelier LA 16 in Montpelier LA 10 in Greensburg LA 38 at Easleyville
North end	MS 568 at Mississippi state line north of Easleyville
Location
Country	United States
State	Louisiana
Parishes	Livingston, St. Helena
Highway system
Louisiana State Highway System Interstate US State Scenic
← LA 42 → LA 44

Louisiana Highway 43 (LA 43) is a state highway located in southeastern Louisiana. It runs 44.38 miles (71.42 km) in a north–south direction from LA 42 west of Springfield to the Mississippi state line north of Easleyville, where it continues as Mississippi Highway 568 (MS 568).

A primarily rural route, LA 43 connects four small municipalities in Livingston and St. Helena parishes, including Springfield, Albany, Montpelier, and Greensburg. The latter is also the seat of St. Helena Parish.

LA 43 entirely parallels the Interstate 55 (I-55) corridor, located between five and ten miles (8.0–16.1 km) east in neighboring Tangipahoa Parish. Over the course of its route, LA 43 intersects such east–west routes as I-12, U.S. Highway 190 (US 190), LA 40, LA 16, LA 10, and LA 38, all of which connect to I-55.

LA 43 was designated in the 1955 Louisiana Highway renumbering from portions of former State Route 46 and State Route 37.