Louisiana Highway 42 (LA 42) is a

state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is bord ...

that serves

East Baton Rouge East Baton Rouge Parish (french: Paroisse de Bâton Rouge Est) is the most populous parish in the U.S. state of Louisiana. At the 2010 U.S. census, its population was 440,171, and 456,781 at the 2020 census. The parish seat is Baton Rouge, Loui ...

, Ascension,

Livingston Livingston may refer to: Businesses * Livingston Energy Flight, an Italian airline (2003–2010) * Livingston Compagnia Aerea, an Italian airline (2011–2014), also known as Livingston Airline * Livingston International, a North American customs ...

, and

Tangipahoa The Tangipahoa were a Native Americans in the United States, Native American tribe that lived just north of Lake Pontchartrain and between the Pearl River (Mississippi–Louisiana), Pearl River and the Mississippi River. Etymology The name Tangip ...

parishes. It spans in a general east–west direction.

Route description

From the west, LA 42 starts at an intersection with LA 30 in Baton Rouge near

Louisiana State University Louisiana State University (officially Louisiana State University and Agricultural and Mechanical College, commonly referred to as LSU) is a public land-grant research university in Baton Rouge, Louisiana. The university was founded in 1860 n ...

. It is a four-lane divided highway for from LA 30 eastward to an intersection with Highland Road and Siegen Lane in southeastern Baton Rouge. This section is named Burbank Drive. From this intersection, LA 42 turns east and follows Highland Road to US 61 (

Airline Highway Airline Highway is a divided highway in the U.S. state of Louisiana, built in stages between 1925 and 1953 to bypass the older Jefferson Highway. It runs , carrying U.S. Highway 61 from New Orleans northwest to Baton Rouge and U.S. Highway 19 ...

). In this segment, it passes the Highland Road Park and Observatory and the Louisiana Country Club. Curving to the northeast, LA 42 widens to four lanes and passes through an interchange with

I-10 Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally p ...

(exit 166). LA 42 turns southeast and overlaps US 61 out of East Baton Rouge Parish and into Ascension Parish for . At this point, LA 42 turns eastward and meanders its way across the

Amite River The Amite River (french: Rivière Amite) is a tributary of Lake Maurepas in Mississippi and Louisiana in the United States. It is about long. It starts as two forks in southwestern Mississippi and flows south through Louisiana, passing Greate ...

and into Livingston Parish, intersecting LA 16 at Port Vincent. For the next , LA 42 and LA 16 run concurrently into the north end of French Settlement. LA 42 proceeds eastward through rural Livingston Parish until reaching its terminus at LA 22 in the town of Springfield. As of 2018, the portion west of US 61 is under agreement to be removed from the state highway system and transferred to local control.

Future

* Burbank Road Widening Project - Complet
Baton Rouge Green Light Project
* LA42 Widening Project - Ascension Parish Louisiana
Louisiana DOTD LA42 Project

Major intersections

References

External links

{{Attached KML

0042 Transportation in East Baton Rouge Parish, Louisiana Transportation in Ascension Parish, Louisiana Transportation in Livingston Parish, Louisiana Transportation in Tangipahoa Parish, Louisiana