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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 ]
Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes LA 1: 431.877: 695.039 Bayou Rigaud in Grand Isle: SH 77 northwest of Rodessa at the Texas state line 1955: current Longest highway in Louisiana. LA 2: 189.490: 304.955 SH 49 west of Trees at the Texas state line: US 65 north of Lake ...
Entire route co-signed with US 167; only U.S. highway in Louisiana with same number as a current state route US 65: 100.77: 162.17 US 425/LA 15 in Clayton: Arkansas state line north of Lake Providence: 1926 [1] current US 71: 231.099: 371.918 US 190 west of Krotz Springs: Arkansas state line at Ida: 1926 [1] current US 79: 88.246
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. [50]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 ...
These primary highways are assigned one- or two-digit route numbers, whereas their associated auxiliary Interstate Highways receive three-digit route numbers. Typically, odd-numbered Interstates run south–north, with lower numbers in the west and higher numbers in the east; even-numbered Interstates run west–east, with lower numbers in the ...
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 ...
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 ...