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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]
LA 318 is an undivided two-lane highway for its entire length. It is classified by the Louisiana Department of Transportation and Development (La DOTD) as a rural major collector, except the final 0.4 miles (0.64 km) where it is an urban collector. The average daily traffic in 2013 was reported as 1,780 vehicles.
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 ]
Since 2008, La DOTD has been replacing the green-and-white state highway markers with a black-and-white version using the same design. [2] The new shields have a black background, white silhouette, black letters and numbers, and no frame outline (see photo below for comparison). Highway names; State: Louisiana Highway X (LA X) Special routes:
LA 25 is an undivided two-lane highway for virtually its entire length. [2] 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 Louisiana Department of Transportation and Development (DOTD) is currently working to extend I-49 from its current terminus in Lafayette south and east to New Orleans along the existing US 90 corridor. The project is officially referred to as the "Interstate 49 Geaux South" program, or more commonly, "I-49 South". [15]
Within the state of Louisiana, the highway travels 69.12 miles (111.24 km) [1] from the national southern terminus at US 61 in LaPlace to the Mississippi state line north of Kentwood. After heading north through LaPlace to a junction with Interstate 10 (I-10) west of New Orleans , the highway joins I-55 on a 22-mile-long (35 km) twin-span ...