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Louisiana Highway 75

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Louisiana Highway 75 marker
Louisiana Highway 75
Route of LA 75 highlighted in red
Route information
Maintained by Louisiana DOTD
Length46.860 mi[1] (75.414 km)
Existed1955 renumbering–present
Tourist
routes		National Scenic Byway: Great River Road
Major junctions
West endDead end in Bayou Pigeon
Major intersections
East end LA 22 / LA 942 in Darrow
Location
CountryUnited States
StateLouisiana
ParishesIberville, Ascension
Highway system
  • Louisiana State Highway System
← LA 74→ LA 76

Louisiana Highway 75 (LA 75) is a state highway located in southeastern Louisiana. It runs 46.86 miles (75.41 km) in a general east–west direction from a dead end in Bayou Pigeon to the junction of LA 22 and LA 942 in Darrow.

The route makes a semi-circle through Iberville and Ascension parishes. About halfway along the way, it passes through the city of Plaquemine and crosses the Mississippi River via ferry. LA 75 travels through a variety of surroundings, ranging from remote swampland along the Grand River on its western end to a mixture of rural farmland and petrochemical plants along the Mississippi River on its eastern end. Major junctions include LA 1 in Plaquemine, the main route connecting the communities situated along the west bank of the Mississippi River. After crossing the river, intersections with LA 74, LA 73, and LA 22 provide connections to the parallel Interstate 10 (I-10) and U.S. Highway 61 (US 61).

LA 75 was designated in the 1955 Louisiana Highway renumbering and initially followed a more distinct north–south route through Iberville Parish. It replaced several shorter former routes, including State Route 1003 south of Bayou Sorrel; State Route 254 from Bayou Sorrel through Plaquemine; and State Route 1002 from Plaquemine to Sunshine, a community now within the St. Gabriel city limits. The designation was later extended to cover the portion of LA 30 from Sunshine to Darrow given up when that highway was re-routed during the late 1960s.

Route description

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From the west, LA 75 begins at a dead end in the Iberville Parish community of Bayou Pigeon. This point is located just southwest of a junction with LA 997, which leads to Morgan City. LA 75 travels northward as an undivided two-lane highway along the east bank of the Lower Grand River. The route intersects LA 404 at Choctaw, connecting with the town of White Castle. After passing through the community of Bayou Sorrel, LA 75 turns northeast at LA 3066 onto Belleview Road, heading away from the Grand River.[2][3][4]

Upon entering the city of Plaquemine, LA 75 widens to an undivided four-lane highway with a center turning lane. After crossing the Union Pacific Railroad (UP) tracks at grade, LA 75 intersects LA 1, which follows the one-way couplet of Church and Eden Streets through town. Narrowing to two-lane capacity once again, LA 75 makes a zigzag across the Mississippi River levee and crosses the river via the Plaquemine Ferry, a service that operates every half-hour. Upon reaching the east bank levee, LA 75 has a Y-junction with LA 991 (River Road). LA 75 curves eastward to follow alongside the levee, continuing the route of LA 991 downriver.[2][3][4]

LA 75 crosses into the rural city of St. Gabriel at a junction with LA 327 (Gummers Lane). The highway passes through Sunshine, a small community now within the city limits, and bends southward with the river levee. A junction with LA 74 connects with the parallel LA 30 and with Gonzales to the east. LA 75 cuts across a sharp bend in the Mississippi River known as Point Clair and rejoins the river levee at Carville, another community within St. Gabriel.[2][3][4]

After intersecting LA 3115, LA 75 crosses into Ascension Parish and simultaneously exits the St. Gabriel city limits. The highway curves southward with the Mississippi River as petrochemical facilities begin to dominate the landscape. At Geismar, LA 75 intersects LA 73, connecting with Dutchtown. The highway turns eastward, following a sharp bend in the river, and ends soon afterward at a junction with LA 22 in Darrow. The roadway continues straight ahead along the river as LA 942.[2][4][5]

Route classification and data

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LA 75 has several different classifications by the Louisiana Department of Transportation and Development (La DOTD) over the course of its route. It generally functions as a rural major collector between Choctaw and Plaquemine, an urban minor arterial through Plaquemine, and a rural minor collector otherwise. Daily traffic volume in 2013 peaked at 13,000 vehicles in Plaquemine and tapered off to below 1,500 vehicles through some of the more rural areas.[6] The posted speed limit ranges from 30 to 45 mph (50 to 70 km/h) within the city of Plaquemine and increases to 55 mph (90 km/h) in most rural areas.[2]

The portion of LA 75 extending from the Plaquemine Ferry to Darrow is a small part of the multi-state National Scenic Byway known as the Great River Road.[7]

History

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In the original Louisiana Highway system in use between 1921 and 1955, LA 75 was part of several different routes, including State Route 1003 from the western terminus to Bayou Sorrel; State Route 254 to Plaquemine; State Route 1002 to Sunshine; State Route 63 to Geismar; and State Route 1 to Darrow.[8][9] The above highways comprising the Bayou Pigeon–Sunshine route were joined under the single designation of LA 75 when the Louisiana Department of Highways renumbered the state highway system in 1955.[10]

La 75—From a point at or near Pigeon through or near Indian Village and Plaquemine to a junction with La 30 at or near Sunshine.

— 1955 legislative route description[10]

The remainder of the route from Sunshine to Darrow was originally part of LA 30.[11] Once LA 30 was moved onto its current route during the late 1960s, the bypassed River Road alignment became an extension of LA 75.[12][13] This portion of highway was part of State Route 65 and State Route 1 prior to the 1955 renumbering.[11]

The only other significant change to LA 75 occurred in 1965 when the highway was re-routed through the Plaquemine area.[12][14] LA 75 originally followed what is now LA 3066, weaving into town alongside Bayou Plaquemine. This alignment was bypassed by an extension of former LA 992-2, and the Mississippi River ferry was moved downstream from its previous location at Court Street accordingly.[15]

Future

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La DOTD is currently engaged in a program that aims to transfer about 5,000 miles (8,000 km) of state-owned roadways to local governments over the next several years.[16] Under this plan of "right-sizing" the state highway system, both ends of LA 75—consisting of the portion south of LA 404 on the west end and the portion south of LA 3251 on the east end—are proposed for deletion as they no longer meet a significant interurban travel function.[17][18]

Major intersections

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ParishLocationmi[1]kmDestinationsNotes
IbervilleBayou Pigeon0.0000.000Dead end southeast of Bayou IndigoWestern terminus
1.2051.939 LA 997 (Bayou Pigeon Bridge) – Morgan CityNorthern terminus of LA 997
Choctaw6.1559.906 LA 404 – White CastleWestern terminus of LA 404
Bayou Sorrel10.40016.737
 LA 75 Spur (Bayou Sorrel Bridge)		Eastern terminus of LA 75 Spur
​16.09025.894 LA 3066 (Bayou Road)Western terminus of LA 3066
Plaquemine21.10533.965 LA 992-3 (Tenant Road)Western terminus of LA 992-3
22.927–
23.020		36.897–
37.047		 LA 1 (Eden Street, Church Street) – White Castle, Port Allen

 LA 405 begins		One-way pair; northern terminus of LA 405; west end of LA 405 concurrency
23.08037.144
 LA 405 south (Belleview Road)		East end of LA 405 concurrency
23.10137.177 LA 1251Eastern terminus of LA 1251
23.25237.420Plaquemine Ferry across Mississippi River
​23.34037.562 LA 991 (River Road)Southern terminus of LA 991
St. Gabriel26.75043.050 LA 327 (Gummers Lane) – Baton RougeSouthern terminus of LA 327
30.65049.326 LA 74 – GonzalesWestern terminus of LA 74
32.29551.974 LA 141-2 (Point Clair Road)Eastern terminus of LA 141-2
34.18055.007 LA 141-1 (Point Clair Road)Eastern terminus of LA 141-1; location also known as Carville
36.40058.580 LA 3115Southern terminus of LA 3115
AscensionGeismar38.94062.668 LA 73 – DutchtownSouthern terminus of LA 73
​41.38966.609 LA 3251 (Ashland Road)Western terminus of LA 3251
Darrow46.86075.414 LA 22 – Burnside, Gonzales
LA 942		Eastern terminus of LA 75; western terminus of LA 22 and LA 942
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Spur route

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Spur plate.svg
Louisiana Highway 75 Spur marker
Louisiana Highway 75 Spur
LocationBayou Sorrel
Length0.177 mi[1] (285 m)
Existed1964–present

Louisiana Highway 75 Spur (LA 75 Spur) runs 0.18 miles (0.29 km) in a southwest to northeast direction, consisting largely of a swing bridge across the Lower Grand River (a link in the Gulf Intracoastal Waterway) in the small Iberville Parish community of Bayou Sorrel. The route connects LA 75 with Bayou Sorrel Road, a local road that travels along the narrow strip of land between Bayou Sorrel and the Lower Grand River.[3][4][19]

The bridge was constructed in 1964,[19] replacing a toll ferry that operated just upstream.[15] As is typical for the state's highway spurs, the mileage for LA 75 Spur increases from the junction with its parent route regardless of geographical direction.

Major intersections
The entire highway is in Bayou Sorrel, Iberville Parish.

mi[1]kmDestinationsNotes
0.1770.285Bayou Sorrel RoadWestern terminus
0.111–
0.040		0.179–
0.064		Bridge over Lower Grand River
0.0000.000 LA 75 – Bayou Pigeon, PlaquemineEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

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References

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  1. ^ a b c d "La DOTD GIS Data". Louisiana Department of Transportation and Development. September 2015. Retrieved March 21, 2016.
  2. ^ a b c d e "Overview Map of LA 75" (Map). Google Maps. Retrieved March 21, 2016.
  3. ^ a b c d Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Iberville Parish (East Section) (PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved March 21, 2016.
  4. ^ a b c d e Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). District 61: Official Control Section Map, Construction and Maintenance (PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved March 21, 2016.
  5. ^ Louisiana Department of Transportation and Development, Office of Multimodal Planning (February 2012). Ascension Parish (PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved March 21, 2016.
  6. ^ "La DOTD GIS". Louisiana Department of Transportation and Development. 2013. Archived from the original on October 16, 2013. Retrieved August 30, 2013.
  7. ^ "Louisiana Great River Road". Louisiana Scenic Byways. 2016. Retrieved May 16, 2017.
  8. ^ Louisiana Department of Highways, Traffic and Planning Section (1953). Iberville Parish (Map) (January 1, 1955 ed.). Scale not given. Baton Rouge: Louisiana Department of Highways.
  9. ^ Louisiana Department of Highways, Traffic and Planning Section (1947). Ascension Parish (Map) (January 1, 1955 ed.). Scale not given. Baton Rouge: Louisiana Department of Highways.
  10. ^ a b "Act No. 40, House Bill No. 311". State-Times. Baton Rouge. June 18, 1955. p. 3B.
  11. ^ a b Louisiana Department of Highways (July 1, 1955). Louisiana Highways: Interim Road Map (Map). Scale not given. Baton Rouge: Louisiana Department of Highways.
  12. ^ a b Louisiana Department of Highways (1966). Louisiana (Map). Scale not given. Baton Rouge: Louisiana Department of Highways.
  13. ^ Louisiana Department of Highways (1968). Louisiana (Map). Scale not given. Baton Rouge: Louisiana Department of Highways.
  14. ^ Louisiana Department of Highways (June 1, 1963). Louisiana (Map). Scale not given. Baton Rouge: Louisiana Department of Highways.
  15. ^ a b Louisiana Department of Highways, Traffic and Planning Section (1953). Iberville Parish (Map) (January 1, 1958 ed.). Scale not given. Baton Rouge: Louisiana Department of Highways.
  16. ^ "Right-Sizing the State Highway System" (PDF). Louisiana Department of Transportation and Development. April 2013. p. 3. Retrieved July 25, 2013.
  17. ^ Louisiana Department of Transportation and Development, Office of Multimodal Planning (March 2, 2017). Right-Size the State Highway System: Iberville Parish (East Section) (PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved June 19, 2017.
  18. ^ Louisiana Department of Transportation and Development, Office of Multimodal Planning (March 2, 2017). Right-Size the State Highway System: Ascension Parish (PDF) (Map). Scale not given. Baton Rouge: Louisiana Department of Transportation and Development. Retrieved June 19, 2017.
  19. ^ a b "Overview Map of LA 75 Spur" (Map). Google Maps. Retrieved March 21, 2016.
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