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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 ]
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 ...
Interstate 10 (I-10), a major transcontinental Interstate Highway in the Southern United States, runs across the southern part of Louisiana for 274.42 miles (441.64 km) [1] [3] from Texas to Mississippi.
Interstate 110 (Louisiana) Interstate 210 (Louisiana) Interstate 310 (Louisiana) Interstate 410 (Baton Rouge, Louisiana) Interstate 410 (New Orleans, Louisiana) Interstate 410 (Louisiana 1955) Interstate 410 (Louisiana 1960) Interstate 410 (Louisiana 1969) Interstate 510; Interstate 610 (Louisiana) Interstate 910; Interstate 12; Interstate 20 ...
Vector image of a 600 mm by 600 mm (24 in by 24 in) Interstate shield. Colors are from [1] (Pantone Red 187 and Blue 294), converted to RGB by [2] . The outside border has a width of 1 (1 mm) and a color of black so it shows up; in reality, signs have no outside border.
To most motorists in Louisiana, the only visible parish roads with numerical designations are the few that appear on state-maintained signage at various Interstate Highway exits. This list includes all nine instances where a parish road intersects an Interstate Highway and features MUTCD standard signage installed by the Louisiana Department of ...
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]
Interstate 12 (I-12) is an intrastate Interstate Highway located entirely within the US state of Louisiana.It spans a total of 85.59 miles (137.74 km) [1] in an east–west direction from I-10 in Baton Rouge to an interchange with both I-10 and I-59 in Slidell.