Interstate 40 in Arkansas

Interstate 40
I-40 highlighted in red
Route information
Maintained by ArDOT
Length	284.69 mi[1] (458.16 km)
NHS	Entire route
Major junctions
West end	I-40 at the Oklahoma state line
Major intersections	I-540 / US 71 in Van Buren I-49 in Alma I-430 in North Little Rock I-30 / US 65 / US 67 / US 167 / AR 107 in North Little Rock I-57 / US 67 / US 167 in North Little Rock I-440 in North Little Rock I-55 / US 61 / US 64 / US 78 / US 79 in West Memphis
East end	I-40 at the Tennessee state line
Location
Country	United States
State	Arkansas
Counties	Crawford, Franklin, Johnson, Pope, Conway, Faulkner, Pulaski, Lonoke, Prairie, Monroe, St. Francis, Crittenden
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Arkansas Highway System Interstate US State Business Spurs Suffixed Scenic Heritage
← AR 39 → AR 41

Interstate 40 (I-40) is an east–west Interstate Highway that has a 284.69-mile (458.16 km) section in the U.S. state of Arkansas, connecting Oklahoma to Tennessee. The route enters Arkansas from the west just north of the Arkansas River near Dora. It travels eastward across the northern portion of the state, connecting the cities of Fort Smith, Clarksville, Russellville, Morrilton, Conway, North Little Rock, Forrest City, and West Memphis. I-40 continues into Tennessee, heading through Memphis. The highway has major junctions with I-540 at Van Buren (the main highway connecting to Fort Smith), I-49 at Alma (the main highway connecting to Fayetteville and Bentonville), I-30 in North Little Rock (the Interstate linking south to Texarkana and Dallas, Texas), and I-55 to Blytheville.

For the majority of its routing through Arkansas, I-40 follows the historic alignment of two separate U.S. Highways. From Oklahoma to Little Rock, I-40 generally follows U.S. Highway 64 through the Ozark Mountains. East of Little Rock, the route generally follows the routing of US 70 until the Tennessee state line.