Louisiana Highway 434 is a state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in Louisiana

Louisiana

Louisiana is a state located in the southern region of the United States of America. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are local governments equivalent to counties...

 that serves St. Tammany Parish

St. Tammany Parish, Louisiana

St. Tammany Parish is a parish located in the U.S. state of Louisiana, in the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The parish seat is Covington....

. It spans 10.79 miles (17.4 km) in a south to north direction. South of US 190

U.S. Route 190

U.S. Route 190, also known as the Ronald Reagan Memorial Highway, is an east–west United States highway in Louisiana and Texas. It evolved from the shortest of intrastate routes in 1926 to a length comparable to a main Interstate Highway route, leading from the swamps and pine forests of...

, it is known as Lake Road.

Route description

From the south, Lake Road literally begins at Lake Pontchartrain

Lake Pontchartrain

Lake Pontchartrain is a brackish estuary located in southeastern Louisiana. It is the second-largest inland saltwater body of water in the United States, after the Great Salt Lake in Utah, and the largest lake in Louisiana. As an estuary, Pontchartrain is not a true lake.It covers an area of with...

. The state maintained portion which is designated as LA 434 begins about two miles (3 km) from the lake near the intersection of Barringer Road and Lake Road. LA 434 continues northward to a junction in Lacombe

Lacombe, Louisiana

Lacombe is a census-designated place in St. Tammany Parish, Louisiana, United States. The population was 7,518 at the 2000 census.-Geography:Lacombe is located at ....

 with US 190

U.S. Route 190

U.S. Route 190, also known as the Ronald Reagan Memorial Highway, is an east–west United States highway in Louisiana and Texas. It evolved from the shortest of intrastate routes in 1926 to a length comparable to a main Interstate Highway route, leading from the swamps and pine forests of...

 and LA 1093-1. At this point, it turns northeastward onto US 190

U.S. Route 190

U.S. Route 190, also known as the Ronald Reagan Memorial Highway, is an east–west United States highway in Louisiana and Texas. It evolved from the shortest of intrastate routes in 1926 to a length comparable to a main Interstate Highway route, leading from the swamps and pine forests of...

 and the roadways overlap as they cross Bayou Lacombe together. Shortly thereafter, LA 434 turns northward and eventually intersects I-12 at a diamond interchange (Exit 74). It continues northward through the community of St. Tammany to a terminus at LA 36

Louisiana Highway 36

Louisiana Highway 36 is a state highway in Louisiana that serves St. Tammany Parish. It spans and is bannered east/west.-Route description:...

.

LA 434 is an undivided, two-lane highway for its entire length.

Junction list

Parish	Location	Mile	Junction	Notes
St. Tammany St. Tammany Parish, Louisiana St. Tammany Parish is a parish located in the U.S. state of Louisiana, in the New Orleans–Metairie–Kenner Metropolitan Statistical Area. The parish seat is Covington....	Lacombe Lacombe, Louisiana Lacombe is a census-designated place in St. Tammany Parish, Louisiana, United States. The population was 7,518 at the 2000 census.-Geography:Lacombe is located at ....	Southern terminus of LA 434
		0.00	Begin State Maintenance on Lake Road at Barringer Road
		1.7	US 190 U.S. Route 190 U.S. Route 190, also known as the Ronald Reagan Memorial Highway, is an east–west United States highway in Louisiana and Texas. It evolved from the shortest of intrastate routes in 1926 to a length comparable to a main Interstate Highway route, leading from the swamps and pine forests of... LA 1093-1 (Davis Avenue or Fish Hatchery Road)	US 190 departs to the west Southern terminus of LA 1093-1
		Begin concurrency
		2.0	US 190 U.S. Route 190 U.S. Route 190, also known as the Ronald Reagan Memorial Highway, is an east–west United States highway in Louisiana and Texas. It evolved from the shortest of intrastate routes in 1926 to a length comparable to a main Interstate Highway route, leading from the swamps and pine forests of...	US 190 departs to the east
		End concurrency
		4.7	I-12	Exit 74/Diamond Interchange
	St. Tammany	10.79	LA 36 Louisiana Highway 36 Louisiana Highway 36 is a state highway in Louisiana that serves St. Tammany Parish. It spans and is bannered east/west.-Route description:...
		Northern terminus of LA 434