Louisiana Highway 70

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Louisiana Highway 70

Route information
Maintained by Louisiana DOTD
Length51.2 mi[1] (82.4 km)
Major junctions
South end US 90 / LA 182 in Morgan City
Major intersections LA 69 south of White Castle
LA 1 north of Paincourtville
LA 3127 near Donaldsonville
LA 18 near Donaldsonville
LA 44 near Sunshine
LA 3125 near Sunshine
North end LA 22 near Sorrento
Location
CountryUnited States
StateLouisiana
ParishesSt. Mary, St. Martin, Assumption, Ascension, St. James
Highway system
  • Louisiana State Highway System
LA 69 US 71

Louisiana Highway 70 (LA 70) is a state highway in Louisiana that serves St. Mary, St. Martin, Assumption, and Ascension parishes. It is primarily a two-lane highway that spans 51.2 miles (82.4 km).[1]

Route description

LA 70 begins at an exit from U.S. Highway 90 in Morgan City. Within the same interchange, US 90 Business and LA 182 pass underneath US 90. LA 70 then heads north into Assumption Parish, where it runs through Pierre Part. In Paincourtville, LA 70 intersects LA 1 via Louisiana Highway 70 Spur, a 1.6-mile-long (2.6 km) connector road. LA 70 then continues northeastward through rural Ascension Parish as a two-lane, undivided road. LA 70 widens to a four lane, undivided road at an intersection with LA 3089. LA 70 then crosses the Mississippi River via the Sunshine Bridge. LA 70 then narrows back to a two lane undivided road after intersecting LA 44 and continues northeastward until it ends at an intersection with LA 22, just south of Interstate 10.[1]

History

Originally, LA 70 was a much shorter route serving only Assumption Parish and only approximately 17 miles in length. Until the late 1950s, the road went from Pierre Part to Paintcourtville, with its southern terminus being near Belle River in Assumption Parish (four miles south of Pierre Part) and northern terminus at LA 1. In 1958, a swing bridge was built on Belle River, and the road was extended southward to parallel the Atchafalaya River through Lower St. Martin and upper St. Mary Parish to reach Morgan City.

The northern extension of LA 70 from Paincourtville/Plattenville to Sorrento/I-10 occurred in 1977. The road was extended from LA 1, crossing Bayou Lafourche, to LA 3089. LA 70 then assumed most of LA 3089's original routing, crossing the Sunshine Bridge to connect to LA 22 near I-10 in Sorrento.

Major junctions

ParishLocationmi[1]kmDestinationsNotes
St. MaryMorgan City0.0–
0.1
0.0–
0.16


US 90 / US 90 Bus. east / LA 182 (Brasher Avenue) – New Orleans, Lafayette, Berwick, Houma
Interchange with US 90; western terminus of US 90 Bus.
St. Martin16.125.9
LA 997 north
Southern terminus of LA 997
Assumption16.326.2
LA 1016-2 south (Belle River Road)
Southern end of LA 1016-2 concurrency
16.326.2
LA 1016-2 north (Belle River Road)
Northern end of LA 1016-2 concurrency
Pierre Part17.227.7
LA 1016-1 south (Shell Beach Road) – Lake Verret Shell Beach
Northern terminus of LA 1016-1
20.132.3
LA 1015-2 south (South Bay Road)
Northern terminus of LA 1015-2
20.232.5
LA 1015-1 south (Bay Road) / North Curtis Street
Northern terminus of LA 1015-1
Grand Bayou27.844.7
LA 69 north
Southern terminus of LA 69
29.447.3
LA 996 north
Southern terminus of LA 996
31.049.9
LA 1004 south
Northern terminus of LA 1004
32.251.8
LA 1004 north
Southern terminus of LA 1003
Paincourtville32.852.8 LA 1 – Napoleonville
32.952.9 LA 308
35.056.3

LA 70 Spur south
Northern terminus of LA 70 Spur
Ascension40.264.7
LA 3127 east – Vacherie
Western terminus of LA 3127
41.1–
41.7
66.1–
67.1

LA 3089 north – Donaldsonville
Southern terminus of LA 3089
42.969.0
LA 3120 north
Southern terminus of LA 3120
St. JamesLemannville43.570.0
To LA 18
Mississippi River43.9–
45.2
70.7–
72.7
Sunshine Bridge
St. JamesUnion45.2–
45.7
72.7–
73.5
LA 44 – The Houmas, Poché Plantation, Bocage PlantationInterchange
46.975.5
LA 3125 east – Convent, Lutcher, Gramercy
Western terminus of LA 3125
AscensionSorrento51.282.4 LA 22 – The Houmas, Bocage Plantation
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 70 Spur

Spur plate.svg

Louisiana Highway 70 Spur

LocationPaincourtville
Length1.6 mi[2] (2.6 km)
Existed1977–present

LA 70 Spur is a 1.6-mile-long (2.6 km) connector route between LA 70 and LA 1 in Plattenville.[2] The route was created in 1977 with the extension of LA 70 from Paincourtville to the Sunshine Bridge as a bypass from Paincourtville to provide a more direct route to LA 1 and LA 308 and interests in Assumption Parish and southbound.

Major junctions The entire highway is in Assumption Parish.

Locationmi[2]kmDestinationsNotes
Paincourtville0.00.0 LA 1
Plattenville0.10.16 LA 308
1.62.6 LA 70
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. ^ a b c d Google (January 20, 2015). "Louisiana Highway 70" (Map). Google Maps. Google. Retrieved January 20, 2015.
  2. ^ a b c Google (January 20, 2015). "LA 70 Spur" (Map). Google Maps. Google. Retrieved January 20, 2015.

External links