Louisiana Highway 3127

Louisiana Highway 3127
Route information
Maintained by Louisiana DOTD
Length:	42.1 mi (67.8 km)
Existed:	c. 1975 – present
Major junctions
Northwest end:	LA 70 east of Donaldsonville
	LA 20 in North Vacherie LA 3213 in North Vacherie LA 640 in Edgard I-310 in Luling
Southeast end:	I-310 / US 90 in Boutte
Location
Parishes:	Ascension, St. James, St. John the Baptist, St. Charles
Highway system
Louisiana Highway System Interstate US State ← x20px LA 3126 LA 3128 →

Louisiana Highway 3127 (LA 3127) is a state highway in Louisiana that serves Ascension, St. James, St. John the Baptist, and St. Charles Parishes. It spans 42.1 miles (67.8 km) 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 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 before a junction with LA 640 south of Edgard. As LA 3127 crosses into St. Charles Parish, 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 vacilities are provided via junctions with LA 3141, LA 3142, and LA 3160, respectively.

The final few miles of LA 3127 consist of a duplex with I-310, beginning at Exit 10. Both highways end at signaled intersection/interchange with US 90 just west of Boutte. As US 90 is slated to be upgraded to interstate standards (as Interstate 49), 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.

Major intersections

Parish	Location	Mile	km	Destinations	Notes
Ascension		0.0	0.0	LA 70 – Donaldsonville, Mississippi River Bridge	Northwestern terminus
St. James		12.5	20.1	LA 3219 – St. James, Lagan	Southern terminus of LA 3219
	North Vacherie	18.4	29.6	LA 20 – Vacherie, Thibodaux
	North Vacherie southern limit	20.7	33.3	LA 3213 north – Mississippi River Bridge, Gramercy	Southern terminus of LA 3213
St. John the Baptist	Edgard southern limit	28.7	46.2	LA 640 – Reserve	Southern terminus of LA 640
St. Charles	Killona southern limit	32.8	52.8	LA 3141 (Mary Plantation Road) – Killona	Southern terminus of LA 3141
	Killona southeastern limit	35.5	57.1	LA 3142 – Taft	Southern terminus of LA 3142
	Hahnville western limit	37.4	60.2	LA 3160 (Home Place) – Hahnville	Southern terminus of LA 3160
	Luling southwestern limit	41.0	66.0	I-310 north – New Orleans	North end of freeway and I-310 concurrency; Exit 10 (I-310)
	Boutte western limit	42.1	67.8	US 90 – Boutte-New Orleans, Houma	Southeastern terminus; Southern terminus of I-310; South end of freeway and I-310 concurrency (no exit number)
Concurrency terminus       Closed/former       HOV only       Incomplete access       Tolled/ETC       Unopened

External links

Template:Attached_KML/Louisiana Highway 3127

• La DOTD State, District, and Parish Maps
  • District 02
  • District 61
  • District 62
  • Ascension Parish
  • St. James Parish
  • St. John the Baptist Parish
  • St. Charles Parish