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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).
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 ]
The original plans for Interstate Highways in Louisiana only included I-10 and I-20 with no connection in between. After I-55 was added in the 1950s, the state considered building a toll road to connect I-10 in southwestern Louisiana and I-20 in the northern part of the state but later rejected the idea.
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. [2] 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.
U.S. Highway 51 (US 51) is a part of the United States Numbered Highway System that spans 1,277 miles (2,055 km) [2] from LaPlace, Louisiana to a point north of Hurley, Wisconsin. 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 ...
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:
The highways and airways should be significantly more crowded this year versus 2020, but the increase will still fall short of pre-pandemic levels. Busiest roads, worst times to travel: What to ...
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 .