State Route 45 and 46 in Louisiana

Louisiana State Route 45

Get started Marrero
End lafitte
Length 22 mi
Length 35 km
MarreroJean Lafitte


State Route 45 or State Highway 45 (LA 45) is a state route in the U.S. state of Louisiana. The road forms a north-south route in the New Orleans region, from Marrero to Lafitte. LA 45 is 35 kilometers long.

  • IAMACCEPTED: Provides a list of all colleges in Louisiana, including contact information for both private and public schools within Louisiana.

Travel directions

State Highway 45 begins in the suburb of Marrero at US 90. This area forms the West Bank of the Mississippi River, but is actually south of the river and the city of New Orleans. LA 45 is initially formed by Barataria Boulevard, an urban arterial with 2×2 lanes and a large number of intersections. The road heads south through urban areas. At Estelle, LA 3134 branches off, forming a bypass of LA 45 to the Bayou Barataria, 10 kilometers south. On this part, LA 45 is a secondary two-lane road and LA 3134 is a 2×2 divided highway.

LA 45 then changes banks via a high fixed bridge over Bayou Barataria and then continues southwards over the east bank of this waterway via Jean Lafitte to Lafitte. The road ends here at a dead end along the bayou, further south are only swamps, wetlands and finally the Gulf of Mexico.


In 1921 the road was numbered LA 30 and by 1930 it had already been paved over its entire length. LA 30 was a much longer route across the west bank of the Mississippi River and west to US 71in Bunkie, not far from Alexandria in the northern half of the state. With the 1955 renumbering, the southern section was numbered as LA 45 from Marrero to Lafitte. In the late 1970s, LA 3134 was built as a bypass of LA 45 through the swamps south of the New Orleans metropolitan area. Also in 1976 a high fixed bridge was built over the Bayou Barataria, which LA 45 uses to switch between the two banks. This is also the southernmost bridge in this area. At the time, it was planned to extend LA 3134 even further south, but this was never carried out. Because LA 45 no longer has meaning for through traffic everywhere, the part that is bypassed by LA 3134 has been included in the Road Transfer Program of the state of Louisiana, to be transferred to Jefferson Parish.

  • LIUXERS: Offers FAFSA school codes for colleges and universities in Louisiana. Also covers Federal schools for each school of the Louisiana.

Traffic intensities

39,000 vehicles drive daily at the junction with the US 90 Business in Marrero, dropping slightly to 35,000 vehicles before the split with LA 3134. After this, LA 3134 handles almost all traffic and LA 45 only has 2,000 vehicles per day until Crown Point. The bridge over the Bayou Barataria handles 10,000 vehicles per day. After that, 6,000 vehicles will drive to Jean Lafitte.

Louisiana State Route 46

Get started New Orleans
End Shell Beach
Length 30 mi
Length 48 km
New OrleansChalmette



St. Bernard

Shell Beach

State Route 46 or State Highway 46 (LA 46) is a state route in the U.S. state of Louisiana. The road forms an east-west route in the Mississippi River Delta, from New Orleans to Shell Beach. State Highway 46 is 48 kilometers long.

Travel directions

The St. Claude Avenue Bridge over the Industrial Canal in New Orleans.

State Highway 46 begins in New Orleans at a junction with Interstate 10 and then continues through the east grid of the city, via Elysian Fields Avenue and St. Claude Avenue. These roads have 2×2 lanes with a relatively wide median strip. A bascule bridge crosses the Industrial Canal to the eastern quarters of the city. The road then becomes St. Bernard Parish and is a 2×2 urban arterial to the suburb of Chalmette. After this, the road is single-lane and leads through several smaller suburbs along the Mississippi River. State Highway 39 runs parallel to LA 46. East of St. Bernard, LA 46 forms the main road as 2×2 divided highwayuntil near Reggio. The road then leads through a narrow strip of developed land, surrounded by swamps and wetlands. State Highway 46 then ends at Shell Beach as a dead end.


The road was built before 1930 as a paved road on the east bank of the Mississippi River between New Orleans and Reggio. The St. Claude Avenue Bridge over the Industrial Canal opened in 1919 as a combined road/rail bridge and later became a road bridge only. The section between New Orleans and St. Bernard was numbered as State Highway 1 from 1921, and on to Regio as State Highway 32. In 1955 the network of state highways was renumbered, with the number State Highway 46 applying to the state highway. eastern part of the current route between Poydras and Shell Beach. The section between New Orleans and Poydras was numbered State Highway 39. This track was later moved to a more northerly route between New Orleans and Chalmette, and then to a new bypass of New Orleans’ outer suburbs in St. Bernard Parish, probably in the 1970s.

During the flooding of New Orleans after Hurricane Katrina in 2005, almost the entire route was under water. The St. Claude Avenue Bridge was one of the few dry points in the area and was used as a refuge. State Highway 46 passes through the Ninth Ward of New Orleans, which was one of the hardest hit sections. As part of a series of new flood protection measures, the ring dike around the suburbs in St. Bernard Parish has been improved. State Highway 46 crosses this ring dike east of St. Bernard, where a movable denomination was constructed in 2011, with large slides that can close the ring dike.

Traffic intensities

Every day, 20,000 to 30,000 vehicles drive through New Orleans, dropping to 10,000 vehicles in the suburbs of St. Bernard Parish. Only 2,500 vehicles remain on the outskirts of the urban region, falling further to 1,500 vehicles at Shell Beach.

Louisiana State Route 46

State Route 45 and 46 in Louisiana
Rate this post

You may also like...