List of state highways in Louisiana (600–649)

The following is a list of state highways in the U.S. state of Louisiana designated in the 600–649 range.

Louisiana Highway 605

Louisiana Highway 605
Location: St. Joseph–Somerset
Length: 19.63 mi[1] (31.59 km)
Existed: 1955–present

Louisiana Highway 605 (LA 605) runs 19.63 miles (31.59 km) in a north–south direction from the junction of LA 128 and LA 897-1 in St. Joseph to US 65 north of Newellton, Tensas Parish.[2]

LA 605 heads north from St. Joseph following the shoreline of Lake Bruin, an oxbow lake of the Mississippi River. The highway intersects LA 607 and LA 604 as it breaks away from the lake to the northeast. It then intersects LA 608 and turns northwest, continuing the route of that highway along Lake St. Joseph, a second oxbow lake. Passing through the town of Newellton, LA 605 intersects LA 4 and LA 887. Following a turn to the north at Balmoral, the highway ends at an intersection with US 65.[2]

The entire highway is in Tensas Parish.

Locationmi[2]kmDestinationsNotes
St. Joseph0.00.0 LA 128 west / LA 897-1 south (Plank Road)Southern terminus of LA 605; eastern terminus of LA 128; northern terminus of LA 897-1
​1.42.3 LA 604 northSouthern terminus of LA 604
Lake Bruin7.011.3 LA 607 west to US 65Eastern terminus of LA 607
​7.712.4 LA 604 southNorthern terminus of LA 604
​10.516.9 LA 608 northSouthern terminus of LA 608
Newellton13.121.1 LA 4 west (Verona Street)Eastern terminus of LA 4
13.421.6 LA 887 eastWestern terminus of LA 887
Balmoral16.326.2 LA 888 northSouthern terminus of LA 888
16.526.6 LA 608 southNorthern terminus of LA 608
​19.831.9 US 65Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 607

Louisiana Highway 607
Location: Lake Bruin
Length: 0.19 mi[1] (0.31 km)
Existed: 1955–present

Louisiana Highway 607 (LA 607) runs 0.19 miles (0.31 km) in an east–west direction from US 65 to LA 605 north of Lake Bruin, Tensas Parish.[3]

The route serves as a short connector, providing access to Lake Bruin from US 65. LA 607 is located roughly midway between St. Joseph and Newellton. It is an undivided two-lane highway for its entire length.[3][4][5]

The entire route is in Tensas Parish.

mi[1]kmDestinationsNotes
0.000.00 US 65 – Ferriday, TallulahWestern terminus
0.190.31 LA 605 – Lake BruinEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 615

Louisiana Highway 615
Location: Shongaloo–Haynesville
Length: 10.34 mi[1] (16.64 km)
Existed: 1955–present

Louisiana Highway 615 (LA 615) runs 10.34 miles (16.64 km) in an east–west direction from a junction with LA 157 and LA 159 north of Shongaloo, Webster Parish to US 79 in Haynesville, Claiborne Parish.[6]

Louisiana Highway 620

Louisiana Highway 620
Location: West Baton Rouge Parish
Length: 7.06 mi[1] (11.36 km)
Existed: 1955–present

Louisiana Highway 620 (LA 620) runs 7.06 miles (11.36 km) in an east–west direction from LA 413 in Erwinville to LA 415 northwest of Port Allen, West Baton Rouge Parish.

LA 620 heads due east from LA 413, just north of the latter's intersection with the concurrent US 190 and LA 1 in Erwinville. LA 620 intersects three minor state routes (LA 3091, LA 984, and LA 983) before terminating at LA 415 (River Road) in an area known as Smithfield. LA 620 is an undivided two-lane highway for its entire length.

Before the 1955 Louisiana Highway renumbering, LA 620 was part of State Route 30.

The entire highway is in West Baton Rouge Parish.

LocationmikmDestinationsNotes
Erwinville0.00.0 LA 413 (Poydras Bayou Road)Western terminus
​1.01.6 LA 3091 (Flynn Road)Southern terminus of LA 3091
​2.54.0 LA 984 (Rougon Road)Southern terminus of LA 984
​4.97.9 LA 983 (Bueche Road)
Smithfield7.011.3 LA 415 (River Road)Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 621

Louisiana Highway 621
Location: Prairieville–Brignac
Length: 6.81 mi[1] (10.96 km)
Existed: 1955–present

Louisiana Highway 621 (LA 621) runs 6.81 miles (10.96 km) in an east–west direction from LA 73 in Prairieville to LA 431 at Brignac, Ascension Parish.[7]

The route heads east from LA 73 (Old Jefferson Highway) adjacent to I-10 Exit 173. It crosses both US 61 (Airline Highway) and LA 44 (North Burnside Avenue) north of Gonzales before ending at LA 431 in an area known as Brignac. LA 621 is an undivided two-lane highway for its entire length.[7][8][9]

The entire highway is in Ascension Parish.

Locationmi[1]kmDestinationsNotes
Prairieville0.00.0 LA 73 (Old Jefferson Highway) to I-10 – Baton Rouge, New OrleansWestern terminus
Duplessis2.64.2 US 61 (Airline Highway) – Baton Rouge, New Orleans
​3.86.1 LA 44 (North Burnside Avenue)
Brignac6.810.9 LA 431 (Brittany–Port Vincent Highway)Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 624

Louisiana Highway 624
Location: Yscloskey–Hopedale
Length: 5.80 mi[1] (9.33 km)
Existed: 1955–present

Louisiana Highway 624 (LA 624) runs 5.80 miles (9.33 km) in an east–west direction from LA 46 in Yscloskey to a point near the Mississippi River Gulf Outlet Canal east of Hopedale, St. Bernard Parish.[10]

The route heads southeast from Yscloskey, running along the north bank of Bayou La Loutre. After passing through Hopedale, LA 624 curves to the northeast with the bayou and proceeds 1.5 miles (2.4 km) to the end of state maintenance. A local road continues a short distance to a dead end at the Mississippi River Gulf Outlet Canal. LA 624 is an undivided two-lane highway for its entire length.[10][11][12]

The entire highway is in St. Bernard Parish.

Locationmi[1]kmDestinationsNotes
Yscloskey0.00.0 LA 46 (Hopedale Highway, Florissant Highway) – Shell Beach, New OrleansWestern terminus
​5.89.3End state maintenance southwest of Mississippi River Gulf Outlet CanalEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 625

Louisiana Highway 625
Location: Yscloskey
Length: 0.25 mi[1] (0.40 km)
Existed: 1955–present

Louisiana Highway 625 (LA 625) runs 0.25 miles (0.40 km) in an east–west direction along Maple Street in Yscloskey, St. Bernard Parish.[13]

The route begins at LA 46 (Florissant Highway), which runs along Bayou La Loutre. It then curves to the southeast to a dead end at Bayou Yscloskey. It is an undivided, two-lane highway for its entire length.[11][12][13]

In the pre-1955 state highway system, LA 625 was designated as State Route C-2073.[14] LA 625 was created in the 1955 Louisiana Highway renumbering,[15] its western end following a slightly different connection to LA 46.[11][16]

The entire highway is in Yscloskey, St. Bernard Parish.

mi[1]kmDestinationsNotes
0.000.00 LA 46 (Florissant Highway)Western terminus
0.250.40Dead end at Bayou YscloskeyEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 626

Louisiana Highway 626
Location: St. Rose–Destrehan
Length: 2.56 mi[1] (4.12 km)
Existed: 1955–present

Louisiana Highway 626 (LA 626) runs 2.56 miles (4.12 km) in a north–south direction along St. Rose Avenue from LA 48 in St. Rose to US 61 at the northeast corner of Destrehan, St. Charles Parish.[17]

The route connects the community of St. Rose with US 61 (Airline Highway) west of New Orleans. Along its short route, LA 626 crosses both the Canadian National Railway (CN) and Kansas City Southern Railway (KCS) tracks at grade. It also crosses under but does not intersect I-310. LA 626 is an undivided two-lane highway for its entire length.[12][17][18]

The entire highway is in St. Charles Parish.

Locationmi[1]kmDestinationsNotes
St. Rose0.00.0 LA 48 (River Road) – Destrehan, Mississippi River Bridge, LulingSouthern terminus
Destrehan2.64.2 US 61 (Airline Highway) – New Orleans, Baton RougeNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 627

Louisiana Highway 627
Location: Norco
Length: 1.14 mi[1] (1.83 km)
Existed: 1955–present

Louisiana Highway 627 (LA 627) runs 1.14 miles (1.83 km) in a north–south direction along Prospect Avenue in Norco, St. Charles Parish.[19]

The route connects US 61 (Airline Highway) with LA 48 (River Road) in an area known as Good Hope. It travels through the Valero and Shell–Motiva oil refineries, crossing both the Canadian National Railway (CN) and Kansas City Southern Railway (KCS) tracks at grade. LA 627 is an undivided two-lane highway for its entire length.[12][18][19]

In the pre-1955 state highway system, LA 627 was designated as State Route 682.[20] LA 627 was created in the 1955 Louisiana Highway renumbering,[15] connecting to LA 48 at a slightly different location. In the early 2000s, the southern portion of LA 627 was re-routed from Prospect Avenue onto a parallel road formerly known as Garrison Street.[18][21] The original route is now signed as "Old Prospect."[19]

The entire highway is in Norco, St. Charles Parish.

mi[1]kmDestinationsNotes
0.00.0 LA 48 (River Road) – Norco, DestrehanSouthern terminus; location also known as Good Hope
1.11.8 US 61 (Airline Highway) – New Orleans, Baton RougeNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 628

Louisiana Highway 628
Location: LaPlace–Montz
Length: 8.04 mi[1] (12.94 km)
Existed: 1955–present

Louisiana Highway 628 (LA 628) runs 8.04 miles (12.94 km) in a general east–west direction from LA 44 in LaPlace, St. John the Baptist Parish to US 61 in Montz, St. Charles Parish.[22]

The route heads southeast along East 5th Street from LA 44 (Main Street) in LaPlace. It approaches and begins to run alongside the east bank levee of the Mississippi River, where it becomes known as River Road. LA 628 intersects LA 636-1 (McReine Road) and LA 3217, two short connectors to the parallel US 61.[22][23][24] The highway then crosses from St. John the Baptist Parish into the St. Charles Parish community of Montz. Reaching the Upper Guide Levee of the Bonnet Carré Spillway, LA 628 turns away from the river and heads northeast on C.C. Road. It parallels the spillway levee to its terminus at US 61 (Airline Highway). LA 628 is an undivided two-lane highway for its entire length.[12][18][22]

ParishLocationmi[1]kmDestinationsNotes
St. John the BaptistLaPlace0.00.0 LA 44 (West 5th Street, Main Street)Western terminus
0.10.16 LA 636-3 west (Cardinal Street)Eastern terminus of LA 636-3
1.11.8 LA 636-1 north (McReine Road)Southern terminus of LA 636-1
2.03.2 LA 3217 northSouthern terminus of LA 3217
St. CharlesMontz8.012.9 US 61 (Airline Highway) – New Orleans, Baton RougeEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 629

Louisiana Highway 629
Location: Killona
Length: 0.67 mi[25] (1.08 km)
Existed: 1955–1960s

Louisiana Highway 629 (LA 629) ran 0.67 miles (1.08 km) in a north–south direction along Killona Drive in Killona, St. Charles Parish.[25]

The route headed southwest from LA 18 (River Road), which runs along the Mississippi River, to a crossing of the Texas & Pacific Railroad (now the Union Pacific Railroad) tracks on Killona Drive. It was an undivided, two-lane highway for its entire length.[25]

In the pre-1955 state highway system, LA 629 was designated as State Route 659.[20] LA 629 was created with the 1955 Louisiana Highway renumbering[15] and deleted sometime in the 1960s. Today a similar route, LA 3141 (Mary Plantation Road), parallels and extends beyond Killona Drive, connecting LA 18 with LA 3127, a bypass of LA 18 that was constructed in the 1970s.[18]

The entire highway was in Killona, St. Charles Parish.

mi[25]kmDestinationsNotes
0.000.00Begin state maintenance at Texas & Pacific Railroad crossingSouthern terminus
0.671.08 LA 18 (River Road) – Donaldsonville, LulingNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 630

Louisiana Highway 630
Location: Hahnville
Length: 0.94 mi[26] (1.51 km)
Existed: 1955–c. 1957

Louisiana Highway 630 (LA 630) ran 0.94 miles (1.51 km) in a west–east direction along Courthouse Lane in Hahnville, St. Charles Parish.[26]

The route headed southwest from LA 18 (River Road), which runs along the Mississippi River, made a zigzag around the St. Charles Parish courthouse, and continued to the Texas & Pacific Railroad (now the Union Pacific Railroad) tracks. It was an undivided, two-lane highway for its entire length.[26]

In the pre-1955 state highway system, LA 630 was designated as State Route 660.[20] LA 630 was created with the 1955 Louisiana Highway renumbering[15] and deleted by 1958.[27] Today a similar route, LA 3160 (Home Place), parallels and extends beyond Courthouse Lane, connecting LA 18 with LA 3127, a bypass of LA 18 that was constructed in the 1970s.[18]

The entire highway was in Hahnville, St. Charles Parish.

mi[26]kmDestinationsNotes
0.000.00Begin state maintenance at Texas & Pacific Railroad tracksWestern terminus
0.941.51 LA 18 (River Road) – Donaldsonville, LulingEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 631

Louisiana Highway 631
Location: Des Allemands–Boutte
Length: 9.0 mi (14.5 km)
Existed: 1955–present

Louisiana Highway 631 (LA 631) runs 9.0 miles (14.5 km) in a southwest to northeast direction from US 90 in Des Allemands to LA 52 in Boutte.

LA 631 follows the original route of US 90 before the parallel four-lane alignment was constructed. It begins in extreme eastern Lafourche Parish and crosses Bayou Des Allemands in the community of Des Allemands. The route then heads northeast through St. Charles Parish through the community of Paradis. Just before reaching its terminus at LA 52 in Boutte, LA 631 crosses underneath I-310. LA 631 is an undivided two lane highway for its entire length.

The route has a spur that travels 0.5 miles (0.80 km) to a junction with US 90 in Des Allemands, providing access from the main highway to the small business district.

ParishLocationmikmDestinationsNotes
LafourcheDes Allemands0.00.0 US 90 – New Orleans, Morgan CityWestern terminus
Lafourche–St. Charles
parish line		0.50.80Bridge over Bayou Des Allemands
St. Charles0.81.3
LA 631 Spur (Old US 90)		Western terminus of LA 631 Spur
1.21.9 LA 632 (Levee Road)Western terminus of LA 632
Paradis3.45.5 LA 635Western terminus of LA 635
5.38.5 LA 306 (Bayou Gauche Road)Northern terminus of LA 306
Boutte9.014.5 LA 52 (Paul Maillard Road)Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 632

Louisiana Highway 632
Location: Des Allemands–Bayou Gauche
Length: 5.63 mi[1] (9.06 km)
Existed: 1955–present

Louisiana Highway 632 (LA 632) runs 5.63 miles (9.06 km) in a general east–west direction from LA 631 in Des Allemands to a dead end at the Paradis Canal in Bayou Gauche, St. Charles Parish.[28]

The route heads southeast along Levee Road and crosses both LA 631 Spur (Old US 90) and current US 90 in Des Allemands. Now known as WPA Road, LA 632 turns due east into an area known as Bayou Gauche and intersects LA 306 (Bayou Gauche Road). LA 632 turns north and runs concurrently with LA 306 for a short distance before turning east onto Grand Bayou Road, which it follows to a dead end at the Paradis Canal. LA 632 is an undivided two-lane highway for its entire length.[12][18][28]

The entire highway is in St. Charles Parish.

Locationmi[1]kmDestinationsNotes
Des Allemands0.00.0 LA 631 (Old Spanish Trail)Western terminus
0.20.32
LA 631 Spur (Old US 90)
0.30.48 US 90 – New Orleans, Morgan City
Bayou Gauche3.25.1 LA 306 south (Bayou Gauche Road)West end of LA 306 concurrency
3.86.1 LA 306 north (Bayou Gauche Road)East end of LA 306 concurrency
5.69.0Dead end at Paradis CanalEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 633

Louisiana Highway 633
Location: Boutte
Length: 2.78 mi[1] (4.47 km)
Existed: 1955–present

Louisiana Highway 633 (LA 633) runs 2.78 miles (4.47 km) in a north–south direction along Magnolia Ridge Road from a local road at Grand Bayou to a junction with US 90 and LA 52 in Boutte, St. Charles Parish. It is an undivided two-lane highway for its entire length.[12][18][29]

The entire highway is in St. Charles Parish.

Locationmi[1]kmDestinationsNotes
​0.00.0Local road at Grand BayouSouthern terminus
Boutte2.84.5 US 90 – New Orleans, Houma
LA 52 (Paul Maillard Road) – Luling		Northern terminus; southern terminus of LA 52
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 634

Louisiana Highway 634
Location: Des Allemands
Length: 0.25 mi[30] (0.40 km)
Existed: 1955–c. 1960s

Louisiana Highway 634 (LA 634) ran 0.25 miles (0.40 km) in a west–east direction along J.B. Green Road in Des Allemands, St. Charles Parish.[30]

The route connected US 90 and its former alignment, LA 631 (Old Spanish Trail). It was an undivided, two-lane highway for its entire length.[30]

In the pre-1955 state highway system, LA 634 was designated as State Route C-1522.[20] LA 634 was created with the 1955 Louisiana Highway renumbering[15] and deleted sometime in the 1960s. However, a similar connector road to the north, LA 635 (formerly State Route C-1520), remains.[18][27]

The entire highway was in Des Allemands, St. Charles Parish.

mi[30]kmDestinationsNotes
0.000.00 LA 631 (Old Spanish Trail) – Des Allemands, ParadisWestern terminus
0.250.40 US 90 – New Orleans, HoumaEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 635

Louisiana Highway 635
Location: Des Allemands
Length: 0.26 mi[1] (0.42 km)
Existed: 1955–present

Louisiana Highway 635 (LA 635) runs 0.26 miles (0.42 km) in an east–west direction north of Des Allemands, St. Charles Parish.[31]

The route connects US 90 and its former alignment, LA 631 (Old Spanish Trail) between Des Allemands and Paradis. It is an undivided two-lane highway for its entire length.[12][18][31]

In the pre-1955 state highway system, LA 635 was designated as State Route C-1520.[20] LA 635 was created in the 1955 Louisiana Highway renumbering[15] following a different connector road immediately to the north that no longer exists.[18][27] A similar connector road to the south, LA 634 (formerly State Route C-1522), was also part of the state highway system until its deletion in the 1960s.[18][27]

The entire highway is in Des Allemands, St. Charles Parish.

mi[1]kmDestinationsNotes
0.000.00 LA 631 (Old Spanish Trail)Western terminus
0.260.42 US 90 – New Orleans, HoumaEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 636

Louisiana Highway 636
Location: LaPlace
Length: 2.40 mi[1] (3.86 km)
Existed: 1955–present

Louisiana Highway 636 (LA 636) is the designation for a pair of state highways composing of LA 636-1 and LA 636-3 that serve Laplace, St. John the Baptist Parish, Louisiana. LA 636-1 is 0.74 miles (1.19 km) long and runs from LA 628 (East 5th Street) east to US 61 (Airline Highway).[32] LA 636-3 begins at LA 44 adjacent to a Mississippi River levee and mostly runs east along this levee to LA 628 and Cardinal Street. This segment is 1.66 miles (2.67 km) long.[33]

Louisiana Highway 637

Louisiana Highway 637
Location: Reserve
Length: 1.48 mi[1] (2.38 km)
Existed: 1955–present

Louisiana Highway 637 (LA 637) runs 1.48 miles (2.38 km) in a north–south direction along West 10th Street from LA 44 (River Road) to US 61 (Airline Highway) in Reserve, St. John the Baptist Parish. It is an undivided two-lane highway for its entire length.[23][24][34]

The entire highway is in Reserve, St. John the Baptist Parish.

mi[1]kmDestinationsNotes
0.00.0 LA 44 (River Road) – LaPlace, GaryvilleSouthern terminus
1.52.4 US 61 (Airline Highway) – New Orleans, Baton RougeNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 639

Louisiana Highway 639
Location: St. John the Baptist Parish
Length: 0.40 mi[1] (0.64 km)
Existed: 1955–present

Louisiana Highway 639 (LA 639) runs 0.40 miles (0.64 km) in a north–south direction off of LA 18 west of Edgard, St. John the Baptist Parish.

LA 639 is a short and lightly traveled local road that begins just north of the Union Pacific Railroad track and continues northward to LA 18 (River Road). Its only major feature is the old Johnson (later renamed Carroll) Plantation, in which a few slave cabins and an overseer's house remain. The route has been unsigned in recent years.

The entire highway is in St. John the Baptist Parish.

LocationmikmDestinationsNotes
Johnson0.00.0Begin state maintenance north of the Union Pacific Railroad tracksSouthern terminus
​0.40.64 LA 18 (River Road)Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 640

Louisiana Highway 640
Location: Edgard–Reserve
Length: 2.37 mi[1] (3.81 km)
Existed: 1955–present

Louisiana Highway 640 (LA 640) runs 2.37 miles (3.81 km) in a north–south direction from LA 3127 in Edgard to the junction of LA 44 and LA 53 in Reserve, St. John the Baptist Parish.

LA 640 heads north from LA 3127 near West St. John High School. It intersects LA 18 (River Road) near the St. John the Baptist Parish Courthouse and crosses the river via the Edgard-Reserve Ferry. LA 640 ends at the east bank river road at an intersection with LA 44 and LA 53. It is an undivided two-lane highway for its entire length.

The entire highway is in St. John the Baptist Parish.

LocationmikmDestinationsNotes
Edgard0.00.0 LA 3127Southern terminus
2.13.4 LA 18 east (River Road)South end of LA 18 concurrency
2.23.5 LA 18 west (River Road)North end of LA 18 concurrency
Mississippi RiverEdgard-Reserve Ferry
Reserve2.23.5 LA 44 (River Road/Jefferson Highway)
LA 53 north (Central Avenue)		Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 642

Louisiana Highway 642
Location: Remy–Grand Point
Length: 3.75 mi[1] (6.04 km)
Existed: 1955–present

Louisiana Highway 642 (LA 642) runs 3.75 miles (6.04 km) in a north–south direction from LA 44 at Remy to the end of state maintenance in Grand Point, St. James Parish.[35]

The route heads north from LA 44 at the east bank levee of the Mississippi River and crosses the Canadian National Railway (CN) tracks at grade. 1.3 miles (2.1 km) later, LA 642 intersects LA 3125. It then zigzags to the west and north through an area known as Grand Point. At the end of its route, the highway turns east and becomes a dirt road. State maintenance ends shortly afterward as the road turns again to the north. LA 642 is an undivided two-lane highway for its entire length.[9][35][36]

The entire highway is in St. James Parish.

Locationmi[1]kmDestinationsNotes
Remy0.00.0 LA 44 – Gramercy, Lutcher, ConventSouthern terminus
​1.42.3 LA 3125 – Gramercy, Lutcher
Grand Point3.96.3End state maintenance northeast of C. Louque Street, a local roadNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 643

Louisiana Highway 643
Location: Lower Vacherie–Lac Des Allemands
Length: 6.03 mi[1] (9.70 km)
Existed: 1955–present

Louisiana Highway 643 (LA 643) runs 6.03 miles (9.70 km) in an east–west direction from LA 20 in Lower Vacherie, St. James Parish to a dead end at Lac Des Allemands in St. John the Baptist Parish.[37]

The route heads eastward through Lower Vacherie from LA 20. At an intersection with LA 644, it turns south then east again and crosses from St. James Parish into St. John the Baptist Parish.[9][36][37] LA 643 continues to the western shore of Lac Des Allemands where it comes to a dead end in a residential subdivision. It is an undivided two-lane highway for its entire length.[23][24][37]

ParishLocationmi[1]kmDestinationsNotes
St. JamesLower Vacherie0.00.0 LA 20 – Vacherie, ThibodauxWestern terminus
1.52.4 LA 644Eastern terminus of LA 644
St. John the Baptist​6.09.7Dead end at Lac Des AllemandsEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 644

Louisiana Highway 644
Location: Lower Vacherie
Length: 1.76 mi[1] (2.83 km)
Existed: 1955–present

Louisiana Highway 644 (LA 644) runs 1.76 miles (2.83 km) in a general east–west direction from LA 20 to LA 643 in Lower Vacherie, St. James Parish.[38]

The route heads eastward through Lower Vacherie from LA 20. After 1.3 miles (2.1 km), it turns to the south and ends at an intersection with LA 643, which continues in a general eastward direction to nearby Lac Des Allemands. LA 644 is an undivided two-lane highway for its entire length.[9][36][38]

The entire highway is in Lower Vacherie, St. James Parish.

mi[1]kmDestinationsNotes
0.00.0 LA 20 – Vacherie, ThibodauxWestern terminus
1.82.9 LA 643 – Lac Des AllemandsEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 647

Louisiana Highway 647
Location: Chackbay–Choctaw
Length: 8.3 mi[39] (13.4 km)
Existed: 1955–1964

Louisiana Highway 647 (LA 647) ran 8.3 miles (13.4 km) in a northwest to southeast direction from LA 20 in Chackbay (shown as Chegby on maps of the time) to Sanchez Road, a local road in an area known as Choctaw.[39]

LA 647 was an undivided two-lane highway for its entire length.

The entire highway was in Lafourche Parish.

Locationmi[39]kmDestinationsNotes
Chegby0.00.0 LA 20 – Thibodaux, VacherieWestern terminus
Choctaw8.313.4End state maintenance east of Sanchez RoadEastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 648

Louisiana Highway 648
Location: Thibodaux
Length: 2.343 mi[40] (3.771 km)
Existed: 1955–present

Louisiana Highway 648 (LA 648) runs 2.34 miles (3.77 km) in a southwest to northeast direction from LA 20 south of Thibodaux to LA 308 east of Thibodaux.[41]

LA 648 heads east from LA 20 on Percy Brown Road, crossing from Terrebonne Parish into Lafourche Parish. It immediately turns to the northeast and briefly passes through the southeast corner of Thibodaux. At the end of its route, LA 648 intersects LA 1, crosses a bridge over Bayou Lafourche, and terminates immediately afterward at LA 308, which follows the opposite bank. LA 648 is an undivided two-lane highway for its entire length.

The entire above route appears on current La DOTD maps as LA 648 and is signed accordingly in the field; however, the departmental GIS and LRS systems still show most of the route under its former designation of LA 648 Spur. Prior to the 2000s, LA 648 turned northwest from Percy Brown Road onto Acadia Road in Thibodaux and headed back to a terminus at LA 20, existing as a short loop off of that highway. The remainder of Percy Brown Road running northeast to LA 308 was designated as LA 648 Spur, now absorbed by the main route.

ParishLocationmi[40]kmDestinationsNotes
Terrebonne​0.0000.000 LA 20 (West Main Street, West Park Avenue)Western terminus
LafourcheThibodaux0.9631.550North Acadia RoadOfficial mile 0.000 of LA 648 Spur
​2.2603.637 LA 1 – Thibodaux, Raceland
​2.271–
2.317		3.655–
3.729		Bridge over Bayou Lafourche
​2.3433.771 LA 308Eastern terminus; official mile 1.380 of LA 648 Spur
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Louisiana Highway 649

Louisiana Highway 649
Location: St. Charles
Length: 0.070 mi[1] (0.11 km)
Existed: 1955–present

Louisiana Highway 649 (LA 649) consists of a swing bridge across Bayou Lafourche in St. Charles, Lafourche Parish.[42]

The route is 0.07 miles (0.11 km) long, connecting LA 1 and LA 308 which run along the west and east banks of the bayou, respectively. It is an undivided two-lane highway for its entire length.[12][42][43]

In the pre-1955 state highway system, LA 649 was designated as State Route C-2137.[44] LA 649 was created in the 1955 Louisiana Highway renumbering[15] and was originally routed across a now-demolished bridge located 0.4 miles (0.64 km) downstream from the current bridge.[43][45] The St. Charles Swing Bridge was constructed in 1996[46] and aligned with the St. Charles Bypass Road that provides a shortcut to LA 24 south of Thibodaux.[42]

The entire highway is in St. Charles, Lafourche Parish.

mi[1]kmDestinationsNotes
0.000.00 LA 1 – Thibodaux, RacelandSouthern terminus
0.070.11 LA 308 – Thibodaux, RacelandNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 "La DOTD GIS". Louisiana Department of Transportation and Development. 2013. Archived from the original on October 16, 2013. Retrieved October 3, 2013.
  2. 1 2 3 Google (February 28, 2015). "Overview Map of LA 605" (Map). Google Maps. Google. Retrieved February 28, 2015.
  3. 1 2 Google (October 3, 2013). "Overview Map of LA 607" (Map). Google Maps. Google. Retrieved October 3, 2013.
  4. ↑ Tensas Parish (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  5. ↑ District 58: Official Control Section Map / Construction and Maintenance (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  6. ↑ Google (October 3, 2013). "Overview Map of LA 615" (Map). Google Maps. Google. Retrieved October 3, 2013.
  7. 1 2 Google (October 3, 2013). "Overview Map of LA 621" (Map). Google Maps. Google. Retrieved October 3, 2013.
  8. ↑ Ascension Parish (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  9. 1 2 3 4 District 61: Official Control Section Map / Construction and Maintenance (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  10. 1 2 Google (October 3, 2013). "Overview Map of LA 624" (Map). Google Maps. Google. Retrieved October 3, 2013.
  11. 1 2 3 St. Bernard Parish (West Section) (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  12. 1 2 3 4 5 6 7 8 9 District 02: Official Control Section Map / Construction and Maintenance (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  13. 1 2 Google (October 3, 2013). "Overview Map of LA 625" (Map). Google Maps. Google. Retrieved October 3, 2013.
  14. ↑ St. Bernard Parish (West Section) (Map) (January 1, 1955 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1951.
  15. 1 2 3 4 5 6 7 "Act No. 40, House Bill No. 311". State-Times. Baton Rouge. June 18, 1955. pp. 3B–7B.
  16. ↑ St. Bernard Parish (West Section) (Map) (January 1, 1958 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1951.
  17. 1 2 Google (October 3, 2013). "Overview Map of LA 626" (Map). Google Maps. Google. Retrieved October 3, 2013.
  18. 1 2 3 4 5 6 7 8 9 10 11 12 St. Charles Parish (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  19. 1 2 3 Google (October 3, 2013). "Overview Map of LA 627" (Map). Google Maps. Google. Retrieved October 3, 2013.
  20. 1 2 3 4 5 St. Charles Parish (Map) (January 1, 1955 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1951.
  21. ↑ St. Charles Parish (Map). Cartography by DOTD Office of Planning and Programming. Louisiana Department of Transportation and Development. 1999.
  22. 1 2 3 Google (October 3, 2013). "Overview Map of LA 628" (Map). Google Maps. Google. Retrieved October 3, 2013.
  23. 1 2 3 St. John the Baptist Parish (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  24. 1 2 3 District 62: Official Control Section Map / Construction and Maintenance (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  25. 1 2 3 4 Google (April 5, 2013). "Overview Map of LA 629" (Map). Google Maps. Google. Retrieved April 5, 2013.
  26. 1 2 3 4 Google (April 3, 2013). "Overview Map of LA 630" (Map). Google Maps. Google. Retrieved April 3, 2013.
  27. 1 2 3 4 St. Charles Parish (Map) (January 1, 1958 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1951.
  28. 1 2 Google (October 3, 2013). "Overview Map of LA 632" (Map). Google Maps. Google. Retrieved October 3, 2013.
  29. ↑ Google (October 3, 2013). "Overview Map of LA 633" (Map). Google Maps. Google. Retrieved October 3, 2013.
  30. 1 2 3 4 Google (April 3, 2013). "Overview Map of LA 634" (Map). Google Maps. Google. Retrieved April 3, 2013.
  31. 1 2 Google (October 3, 2013). "Overview Map of LA 635" (Map). Google Maps. Google. Retrieved October 3, 2013.
  32. ↑ Google (February 28, 2015). "Overview Map of LA 636-1" (Map). Google Maps. Google. Retrieved February 28, 2015.
  33. ↑ Google (February 28, 2015). "Overview Map of LA 636-3" (Map). Google Maps. Google. Retrieved February 28, 2015.
  34. ↑ Google (October 3, 2013). "Overview Map of LA 637" (Map). Google Maps. Google. Retrieved October 3, 2013.
  35. 1 2 Google (October 3, 2013). "Overview Map of LA 642" (Map). Google Maps. Google. Retrieved October 3, 2013.
  36. 1 2 3 St. James Parish (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  37. 1 2 3 Google (October 3, 2013). "Overview Map of LA 643" (Map). Google Maps. Google. Retrieved October 3, 2013.
  38. 1 2 Google (October 3, 2013). "Overview Map of LA 644" (Map). Google Maps. Google. Retrieved October 3, 2013.
  39. 1 2 3 Microsoft; Nokia (November 15, 2012). "Overview Map of LA 647" (Map). Bing Maps. Microsoft. Retrieved November 15, 2012.
  40. 1 2 "La DOTD GIS Data". Louisiana Department of Transportation and Development. September 2015. Retrieved January 3, 2016.
  41. ↑ Google (January 3, 2016). "Overview Map of LA 648" (Map). Google Maps. Google. Retrieved January 3, 2016.
  42. 1 2 3 Google (October 3, 2013). "Overview Map of LA 649" (Map). Google Maps. Google. Retrieved October 3, 2013.
  43. 1 2 Lafourche Parish (Northwest Section) (PDF) (Map). Cartography by La DOTD Office of Multimodal Planning. Louisiana Department of Transportation and Development. February 2012. Retrieved October 3, 2013.
  44. ↑ Lafourche Parish (North Section) (Map) (January 1, 1955 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1953.
  45. ↑ Lafourche Parish (North Section) (Map) (January 1, 1958 ed.). Cartography by Department of Highways Traffic and Planning Section. Louisiana Department of Highways. 1953.
  46. ↑ Johnson, Kris (July 5, 2012). "Fate of some bridges still unknown". Houma Today. Retrieved April 5, 2013.
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