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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 ...
The Interstate Highway System in Louisiana consists of 933.84 miles (1,502.87 km) [4] of freeways constructed and maintained by the Louisiana Department of Transportation and Development (La DOTD). The system was authorized on June 29, 1956 when President Dwight D. Eisenhower signed into law the Federal Aid Highway Act of 1956. [1]
US. State. Scenic. 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).
Louisiana Highway 50 (LA 50) runs 0.85 miles (1.37 km) in a north–south direction along Almedia Road in St. Rose, St. Charles Parish.. The route heads northward from an intersection with LA 48 (River Road) at the Mississippi River, crossing both the Canadian National Railway (CN) and Kansas City Southern Railway (KCS) tracks at grade, to a point on US 61 (Airline Highway) just east of an ...
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 ...
Interstate 55 (I-55) is a part of the Interstate Highway System that spans 964.25 miles (1,551.81 km) from LaPlace, Louisiana, to Chicago, Illinois. Within the state of Louisiana, the highway travels 66 miles (106 km) from the national southern terminus at I-10 in LaPlace to the Mississippi state line north of Kentwood.
Louisiana Highway 22 ( LA 22) is a state highway located in southeastern Louisiana. It runs 71.15 miles (114.50 km) in a general east–west direction from the junction of LA 75 and LA 942 in Darrow to U.S. Highway 190 (US 190) in Mandeville . The route traverses a variety of terrain and surroundings over the course of its journey, which begins ...
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.