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U.S. Highway X Bypass (US X Byp.); The U.S. Highway System in Louisiana consists of 2,490.851 miles (4,008.636 km) of mainline highway routes and 107.785 miles (173.463 km) of special routes (both figures including concurrencies) that are constructed and maintained by the Louisiana Department of Transportation and Development (La DOTD).
Scenic. ← LA 3286. → LA 2. Louisiana Highway 1 ( LA 1) is a state highway in Louisiana. At 431.88 miles (695.04 km), it is the longest numbered highway of any class in Louisiana. It runs diagonally across the state, connecting the oil and gas fields near the island of Grand Isle with the northwest corner of the state, north of Shreveport .
State highway markers for different years: 1955 (left), 1990 (center), 2008–present (right) System information Length 16,698.41 mi (26,873.49 km) Formed 1955 renumbering Notes Since 2008, La DOTD has been replacing the green-and-white state highway markers with a black-and-white version using the same design. The new shields have a black background, white silhouette, black letters and ...
U.S. Highway 90 ( US 90 ), one of the major east–west U.S. Highways in the Southern United States, runs through southern Louisiana for 297.6 miles (478.9 km), serving Lake Charles, Lafayette, New Iberia, Morgan City, and New Orleans. Much of it west of Lafayette and east of New Orleans has been supplanted by Interstate 10 (I-10) for all but ...
Louisiana Highway 30. Louisiana Highway 30 ( LA 30) is a state highway located in southeastern Louisiana. It runs 28.10 miles (45.22 km) in a northwest to southeast direction from LA 73 in Baton Rouge to the junction of U.S. Highway 61 (US 61) and LA 431 east of Gonzales . The route connects Downtown Baton Rouge with Louisiana State University ...
The Louisiana Department of Highways, predecessor of the DOTD, began construction shortly afterward on its portion of the system, to which approximately 686 miles (1,104 km) was initially allotted. The first road segment in the new system was officially opened and dedicated on February 24, 1960 and consisted of a portion of the Pontchartrain ...
U.S. Highway 11 ( US 11) is a part of the United States Numbered Highway System that spans 1,645 miles (2,647 km) [a] [2] from New Orleans, Louisiana, to Rouses Point, New York. Within the state of Louisiana, the highway travels 31 miles (50 km) [1] from the national southern terminus at US 90 in New Orleans to the Mississippi state line south ...
Louisiana Highway 24. Louisiana Highway 24 ( LA 24) is a state highway located in southeastern Louisiana. It runs 35.65 miles (57.37 km) in a general east–west direction from LA 20 in Schriever to LA 3235 in Larose . The route has two distinct sections, the longer of which travels through Terrebonne Parish on either side of Bayou Terrebonne.