List of state highways in Louisiana (500–549)

The following is a list of state highways in the U.S. state of Louisiana designated in the 500-549 range.

Louisiana Highway 500
Louisiana Highway 500 (LA 500) runs 24.59 mi in an east–west direction from US 167 at Packton, Grant Parish to US 84 west of Jena, LaSalle Parish.

LA 500 initially travels due east from US 167 along the Grant–Winn parish line. It then curves southeast through the Kisatchie National Forest and proceeds into the village of Georgetown. Here, the highway crosses the four-lane US 165 and zigzags north and east through the center of town. Heading southeast from Georgetown, LA 500 crosses the Little River in LaSalle Parish. The route continues through the tiny rural communities of Zenoria, Little Creek, and Searcy until reaching its eastern terminus at a T-intersection with US 84 west of Trout, an unincorporated community outside Jena. LA 500 is an undivided two-lane highway for its entire route.

Louisiana Highway 501
Louisiana Highway 501 (LA 501) runs 30.75 mi from Winnfield to Friendship.

Louisiana Highway 502
Louisiana Highway 502 (LA 502) runs 1.52 mi in a north–south direction from US 165 to LA 500 in Georgetown, Grant Parish.

The route heads due east from US 165 then turns northward after crossing the Union Pacific Railroad (UPRR) tracks. Now running parallel to US 165, LA 502 enters Georgetown and intersects LA 500. The north–south section of the route represents the original alignment of US 165 in the area. It is an undivided two-lane highway for its entire length.

Louisiana Highway 503
Louisiana Highway 503 (LA 503) runs 8.75 mi from Summerville to Nickel.

Louisiana Highway 504
Louisiana Highway 504 (LA 504) runs 4.28 mi in Natchitoches.

Louisiana Highway 505
Louisiana Highway 505 (LA 505) runs 25.24 mi in a north–south direction from US 167 at Tannehill, Winn Parish to LA 4 in Weston, Jackson Parish.

The route is roughly L-shaped, initially heading northwest from US 167. It then curves to the northeast, passing between the towns of Jonesboro and Dodson as it crosses US 167 at Wyatt. LA 505 continues northeast to an intersection with LA 4 in Weston. It is an undivided two-lane highway for its entire length.

Louisiana Highway 506
Louisiana Highway 506 runs in a general Northwest - Southeast direction from LA-124 in LaSalle Parish, to Hebron Rd in Caldwell Parish.

Beginning at its Southeastern terminus at LA-124, LA-506 runs 4.3 miles in a northern direction to the southern terminus of LA-849 east of Kelly. It then continues west for 3 miles, where it crosses U.S. Highway 165, then continues west approximately 10 miles. Its Northern terminus is at a point where State maintenance ends and the road becomes gravel.

Except for the 1 mile section between its intersection with LA-843 to its intersection with US-165, the entire route is scheduled for deletion as part of Louisiana's "Right Sizing" program.

Louisiana Highway 507
Louisiana Highway 507 (LA 507) runs 60.38 mi from Messick to Simsboro.

Louisiana Highway 508
Louisiana Highway 508 (LA 508) runs 6.81 mi in Bienville.

Louisiana Highway 509
Louisiana Highway 509 (LA 509) runs 16.40 mi from Mansfield to Westdale.

Louisiana Highway 510
Louisiana Highway 510 (LA 510) runs 9.46 mi in De Soto Parish.

Louisiana Highway 511
Louisiana Highway 511 (LA 511) runs 17.92 mi in an east–west direction from the concurrent US 79/US 80 in Greenwood, Caddo Parish to US 71 in Bossier City, Bossier Parish.

Louisiana Highway 512
Louisiana Highway 512 (LA 512) runs 6.01 mi from Benson to Pelican.

Louisiana Highway 513
Louisiana Highway 513 (LA 513) runs 14.86 mi from Pelican to Mansfield.

Louisiana Highway 514
Louisiana Highway 514 (LA 514) runs 12.19 mi from East Point to Womack.

Louisiana Highway 515
Louisiana Highway 515 (LA 515) runs 11.72 mi from Red River Parish to Bossier Parish.

Louisiana Highway 516
Louisiana Highway 516 (LA 516) runs 20.41 mi from Ringgold to Bryceland.

Louisiana Highway 517
Louisiana Highway 517 (LA 517) runs 6.03 mi from Mount Lebanon to Bryceland.

Louisiana Highway 518
Louisiana Highway 518 (LA 518) runs 29.67 mi from Minden to Lisbon.

Louisiana Highway 519
Louisiana Highway 519 (LA 519) runs 9.00 mi from Arcadia to Marsalis.

Louisiana Highway 520
Louisiana Highway 520 (LA 520) runs 16.18 mi in a north–south direction from US 79 in Homer to LA 161 northeast of Gordon, Claiborne Parish.

The route heads in a general northeast direction from an intersection with US 79 at the northern tip of Homer. It makes a brief jog eastward onto LA 2 Alternate at Colquitt before turning north toward LA 161 just south of the Arkansas state line. It is an undivided two-lane highway for its entire length.

Louisiana Highway 521
Louisiana Highway 521 (LA 521) runs 10.43 mi from Leton to Millerton.

Louisiana Highway 522
Louisiana Highway 522 (LA 522) runs 3.80 mi in Mansfield.

Louisiana Highway 523
Louisiana Highway 523 (LA 523) runs 5.88 mi in a southeast to northwest direction from LA 1 to LA 511 in Shreveport, Caddo Parish.

The route heads west from LA 1 at Lucas, a point within the southeast corner of Shreveport. After intersecting LA 3132 (Inner Loop Expressway), LA 523 curves to the southwest then turns northwest. The highway follows Ellerbe Road across LA 516 (East Bert Kouns Industrial Loop) to a second interchange with LA 3132 just east of I-49. LA 523 proceeds northward onto Line Avenue to its terminus at LA 511 in an area of Shreveport known as Cedar Grove.

Louisiana Highway 524
Louisiana Highway 524 (LA 524) runs 9.88 mi in a north–south direction from US 165 north of Pollock to the end of state maintenance at a point just north of LA 123 in Breezy Hill, Grant Parish.

The route parallels US 165 through the community of Antonia. It then makes a brief jog onto US 165 before crossing to the west side of the highway and continuing toward Breezy Hill, where it continues as a local road. LA 524 represents the original alignment of US 165 through the area. It is an undivided two-lane highway for its entire length.

Louisiana Highway 525
Louisiana Highway 525 (LA 525) runs 10.05 mi from Spring Ridge to Shreveport.

Louisiana Highway 526
Louisiana Highway 526 (LA 526), also known as the Bert Kouns Industrial Loop, provides a southern bypass around Shreveport, connecting with LA 1 and US 71 eastbound, and US 171 and I-20 westbound. It intersects I-49 seven miles south of I-20.

Louisiana Highway 527
Louisiana Highway 527 (LA 527) runs 13.55 mi in an east–west direction from US 71 at Taylortown, Bossier Parish to LA 163 south of Lake Bistineau State Park in Webster Parish.

Louisiana Highway 528
Louisiana Highway 528 (LA 528) runs 11.20 mi from Bossier Parish to Dixie Inn.

Louisiana Highway 529
Louisiana Highway 529 (LA 529) runs 6.74 mi in Ivan.

Louisiana Highway 530
Louisiana Highway 530 (LA 530) runs 10.23 mi from Oil City to Belcher.

Louisiana Highway 531
Louisiana Highway 531 (LA 531) runs 14.45 mi from Heflin to Minden.

Louisiana Highway 532
Louisiana Highway 532 (LA 532) runs 5.15 mi from Dubberly to Nine Forks.

Louisiana Highway 533
Louisiana Highway 533 (LA 533) runs 7.44 mi in Claiborne.

Louisiana Highway 534
Louisiana Highway 534 (LA 534) runs 20.40 mi from the Kisatchie National Forest to Haynesville.

Louisiana Highway 537
Louisiana Highway 537 (LA 537) runs 11.82 mi in Plain Dealing.

Louisiana Highway 538
Louisiana Highway 538 (LA 538) runs 23.41 mi in a north–south direction from LA 3049 in Shreveport to LA 1 north of Oil City, Caddo Parish.

The route begins at an intersection with LA 3049 in Shreveport, just south of I-220. LA 3049 continues the route south on Grimmett Drive and makes a right to the north on Dixie Shreveport Road. From this intersection, LA 538 heads north on Old Mooringsport Road, retaining this name until halfway through Mooringsport. It crosses under I-220, and shortly after, it has an intersection with Ravendale Drive at a traffic circle. LA 538 continues north for 2.8 miles (4.5 km) before making a brief jog onto US 71. After crossing out of the Shreveport city limits, LA 538 begins a northwest course for 2.5 mi (4.0 km), crossing a bridge over I-49 before curving to the southwest and intersecting with LA 1, where it turns northwest and then to the west, before curving back to the northwest shortly after passing a high school. LA 538 continues northwest for 2.7 mi (4.3 km) before intersecting LA 173. LA 173 heads north to a point known as Dixie, also intersecting LA 1. Shortly, after, LA 538 curves to the north-northwest, crossing under the Kansas City Southern Railway tracks. After 4.1 mi (6.6 km), LA 538 enters the town of Mooringsport, and shortly after it intersects with LA 169, which heads northeast to just northwest of Dixie. From here, LA 538 curves to the west and then to the north, where Old Mooringsport Road ends and LA 538 gains the local name of Latimer Street. Shortly after, LA 538 curves to the northeast and then to the north as it crosses a bridge over Caddo Lake. LA 538 parallels the Caddo Lake Historic Drawbridge while on this bridge. LA 538 also begins to parallel the Kansas City Southern Railway tracks before splitting from the railway as the highway curves to the northeast and then to the northwest, before intersecting with LA 1 a second time. After 1.3 mi (2.0 km), LA 538 enters the town of Oil City, gaining the local name of Kerley Avenue. Shortly after entering town, LA 538 intersects LA 530 (Allen Street). LA 538 and LA 530 begin a concurrency for 1.1 mi (1.8 km) until LA 530 splits off to the east toward the village of Belcher. LA 538 continues north for a final 2.2 mi (3.5 km) before reaching its northern terminus at a third intersection with LA 1, just north of Oil City. LA 538 is an undivided two-lane highway except for the traffic circle at Ravendale Drive.

Louisiana Highway 540
Louisiana Highway 540 (LA 540) runs 8.19 mi from Ruple to Homer.

Louisiana Highway 541
Louisiana Highway 541 (LA 541) runs 9.72 mi in a general east–west direction from LA 18 in Avondale to a second junction with LA 18 in Harvey, Jefferson Parish.

The route heads north on River Road from LA 18 through the community of Bridge City, where it begins to parallel the west bank levee of the Mississippi River. After crossing underneath the Huey P. Long Bridge on US 90, LA 541 follows a sharp bend in the river known as Nine Mile Point. Now heading south, the highway enters the city of Westwego and has a brief concurrency with LA 18. Its local name briefly changes to Labauve Drive within the city limits. Continuing eastward along the river, LA 541 crosses into Marrero and intersects LA 560-2 (Barataria Boulevard), a short connector to LA 18 and LA 45. After crossing from Marrero into another unincorporated community known as Harvey, LA 541 curves south onto Destrehan Avenue alongside the Harvey Canal, a link in the Gulf Intracoastal Waterway. The route ends shortly afterward at LA 18 (4th Street) adjacent to a bascule bridge spanning the canal on that highway. LA 541 is an undivided two-lane highway for its entire length.

Louisiana Highway 542
Louisiana Highway 542 (LA 542) runs 8.30 mi in Jonesboro.

Louisiana Highway 543
Louisiana Highway 543 (LA 543) runs 4.42 mi from Rogers to Vaughn.

Louisiana Highway 544
Louisiana Highway 544 (LA 544) runs 15.39 mi from Lincoln Parish to Ruston.

Louisiana Highway 545
Louisiana Highway 545 (LA 545) runs 17.60 mi in Lincoln Parish.

Louisiana Highway 546
Louisiana Highway 546 (LA 546) runs 10.75 mi in a southwest to northeast direction from LA 34 northeast of Eros to a junction with US 80 and LA 15 west of Monroe, Ouachita Parish.

The route heads northeast from LA 34 and intersects LA 151 at Cadeville where it passes West Ouachita High School. Near the end of its route, LA 546 crosses the Kansas City Southern Railway (KCSRW) tracks via an overpass and travels through an interchange with I-20 in Cheniere. It ends a short distance later at an intersection with US 80 and southbound LA 15, connecting to West Monroe. Northbound LA 15 continues straight ahead toward Farmerville. LA 546 is an undivided two-lane highway for its entire length.

Louisiana Highway 547
Louisiana Highway 547 runs 3.06 miles in an east–west direction from a local road to its Western terminus at LA-845 in Clarks.

The entire route is in Caldwell Parish.

As part of Louisiana DOTD's "right-sizing" program, the entire route is set to be deleted and transferred to local control.

Louisiana Highway 548
Louisiana Highway 548 (LA 548) runs 7.79 mi in Chatham.

Louisiana Highway 549
Louisiana Highway 549 (LA 549) runs 15.54 mi in a north–south direction from LA 15 north of Farmerville to the Arkansas state line north of Oakland, Union Parish.

The route heads north from LA 15 and intersects LA 348 at Conway. LA 549 then passes the Union Wildlife Management Area and curves to the northeast at Truxno. Shortly before crossing the Arkansas state line, LA 549 intersects LA 551 in Oakland. The road continues toward Strong, Arkansas and US 82 as Arkansas Highway 275. It is an undivided two-lane highway for its entire length.