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A Louisiana Highway Department gravel truck driver pauses in front of his orange-colored vehicle (1972). The new Louisiana Constitution of 1976 (adopted in 1974) and Act 83 of 1977 abolished the Departments of Highways and Public Works and restructured them into the Department of Transportation and Development (DOTD), thereby encompassing related activities such as highways, public works ...
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). [3]
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 90 enters Louisiana at the Texas line over the Sabine River as part of I-10. Separating at exit 4 and running parallel on the north side of I-10 through Sulphur, before rejoining I-10 east of Westlake, crossing the Calcasieu River, and again splitting from I-10 at exit 31B (running on the south side of I-10) going through Lake Charles as Fruge, West 4th, then East 4th, before leaving town.
Louisiana Highway 40 (LA 40) is a state highway located in southeastern Louisiana. It runs 53.11 miles (85.47 km) in an east–west direction from LA 43 south of Montpelier to LA 41 in Bush . The route travels through the rural area between the parallel corridors of U.S. Highway 190 (US 190) and LA 21 to the south and LA 16 to the north.
The heaviest traffic on I-49 occurs within the cities of Shreveport and Opelousas. The stretch of freeway in Shreveport sees an average of 70,000 vehicles per day, while the stretch of freeway between Lafayette and Carencro sees an average of 55,000 vehicles per day, and the stretch of freeway through Opelousas sees an average of 45,000 ...
The highway is classified as a rural minor arterial by the Louisiana Department of Transportation and Development (La DOTD). Daily traffic volume in 2013 peaked at 19,100 vehicles in Covington, 13,000 in Franklinton, and 10,700 in Folsom. The remainder of the route generally averaged between 2,600 and 5,500 vehicles daily. [6]
Louisiana Highway 28 (LA 28) is a state highway located in central Louisiana. It runs 86.97 miles (139.96 km) in an east–west direction from the junction of U.S. Highway 171 (US 171) and LA 8 in Leesville to US 84 west of Jonesville .