 Interstate 49 | ||||
|---|---|---|---|---|
 I-49 highlighted in red | ||||
| Route information | ||||
| Maintained by Louisiana DOTD | ||||
| Length | 247.219 mi[1] (397.860 km) 244.021 mi (392.714 km) opened[a] | |||
| Existed | July 1982–present | |||
| NHS | Entire route | |||
| Southern segment | ||||
| South end |    I-10 / US 167 / LA 182 in Lafayette | |||
| Major intersections | ||||
| North end |  I-20 in Shreveport | |||
| Northern segment | ||||
| South end |  I-220 in Shreveport | |||
| Major intersections | ||||
| North end |  I-49 at the Arkansas state line | |||
| Location | ||||
| Country | United States | |||
| State | Louisiana | |||
| Parishes | Lafayette, St. Landry, Evangeline, Avoyelles, Rapides, Natchitoches, DeSoto, Caddo | |||
| Highway system | ||||
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Interstate 49 (I-49) is an Interstate Highway that currently spans 244.021 miles (392.714 km) in a north–south direction in the US state of Louisiana.[1] Currently, I-49 runs from I-10 in Lafayette to the Arkansas state line. I-49 greatly parallels the older US Highway 71 (US 71) corridor, and connects the state's two east–west Interstates at two of its metropolitan centers. Along the way, it serves the cities of Opelousas, Alexandria, and Natchitoches, intersecting several cross-state highways, such as I-20, US 190, US 167, US 165, and US 84.
I-49 was an intrastate Interstate Highway until December 12, 2012, when the designation was officially approved for an upgraded portion of US 71 in Missouri running from Joplin north to Kansas City.[3] A southern extension of the route from Lafayette to New Orleans is planned along the US 90 corridor, when completed, I-49 will run continuous from Texarkana to New Orleans.
- ^ a b Louisiana Department of Transportation and Development, Highway Inventory Unit (2016). "LRS Conversion Tool". Louisiana Department of Transportation and Development. Retrieved April 14, 2019.
- ^ Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved March 10, 2023.
- ^ "Missouri Getting New Interstate, at Least in name". St. Louis Post-Dispatch. Associated Press. September 4, 2012. Retrieved November 29, 2012.
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