Louisiana Highway 3127 (LA 3127) 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 borde ...

that serves Ascension, St. James, St. John the Baptist, and St. Charles Parishes. It spans in a northwest to southeast direction. It parallels LA 18 along the west bank of the Mississippi River, providing a much shorter inland bypass of the River Road. It is bannered in all four cardinal directions depending upon the part of the route.

Route description

Throughout its length, LA 3127 was built to eventually accommodate four lanes of traffic, as the land throughout its routing has been cleared for this accommodation. From the northwest, LA 3127 begins at a junction with LA 70 east of

Donaldsonville Donaldsonville (historically french: Lafourche-des-Chitimachas) is a city in, and the parish seat of Ascension Parish in the U.S. state of Louisiana. Located along the River Road of the west bank of the Mississippi River, it is a part of the Bat ...

and immediately enters St. James Parish. Undivided, two lanes, and largely secluded for the first several miles, it heads eastward and intersects LA 3219 near the community of St. James. Near Vacherie, it intersects LA 20. Continuing eastward, the route crosses into

St. John the Baptist Parish St. John the Baptist Parish (SJBP, french: Paroisse de Saint-Jean-Baptiste) is a parish located in the U.S. state of Louisiana. At the 2020 census, the population was 42,477. The parish seat is Edgard, an unincorporated area, and the largest c ...

before a junction with LA 640 south of Edgard. As LA 3127 crosses into

St. Charles Parish St. Charles Parish (french: Paroisse de Saint-Charles) is a parish located in the U.S. state of Louisiana. At the 2020 census, its population was 52,549. The parish seat is Hahnville and the most populous community is Luling. The parish was ...

, the highway turns toward the southeast. Shortly afterward, it divides and expands to four lanes. Access to the river communities of Killona, Taft, and Hahnville as well as many chemical and industrial facilities are provided via junctions with LA 3141, LA 3142, and LA 3160, respectively. The final of LA 3127 consist of a concurrency with

I-310 Interstate 310 is the designation for several highways in the United States, which are related to Interstate 10: *Interstate 310 (Louisiana) Interstate 310 (I-310) is a short spur route of I-10 west of New Orleans, located entirely in ...

, beginning at Exit 10. Both highways end at signaled intersection/interchange with

US 90 U.S. Route 90 or U.S. Highway 90 (US 90) is an east–west major United States highway in the Southern United States. Despite the "0" in its route number, US 90 never was a full coast-to-coast route. With the exception of a short-lived ...

just west of Boutte. As US 90 is slated to be upgraded to interstate standards (as

Interstate 49 Interstate 49 (I-49) is a north–south Interstate Highway that exists in multiple segments: the original portion entirely within the state of Louisiana with an additional signed portion extending from I-220 in Shreveport to the Arkansas s ...

), there are plans to massively reconfigure both the interchanges. An extension of LA 3213 (which crosses the Mississippi River via the Veterans Memorial Bridge) to connect with LA 3127 opened in June 2008. This junction is between LA 20 and LA 640.

Route description

Major intersections

References

External links