Interstate 55 in Arkansas

Interstate 55
Route of I-55 in red
Route information
Maintained by AHTD
Length:	72.22 mi (116.23 km)
Major junctions
South end:	I-55 / US 61 / US 64 / US 70 at Tennessee state line
	I-40 in West Memphis I-555 / US 61 / US 63 / AR 77 in Turrell US 61 in Blytheville
North end:	I-55 at Missouri state line
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Arkansas Highway System Interstate US State Business Spurs Suffixed Scenic Heritage ← AR 54 AR 56 →

Interstate 55 (I-55) is a north–south Interstate Highway that has a 72.22-mile (116.23 km) section in the U.S. state of Arkansas connecting sections in Tennessee and Missouri. The route enters Arkansas on the Memphis & Arkansas Bridge over the Mississippi River from Memphis. It travels northward through northeast Arkansas connecting the cities of West Memphis and Blytheville. I-55 continues into Missouri heading to St. Louis, Missouri. The highway overlaps Interstate 40 in West Memphis and has a junction with Interstate 555, a spur route to Jonesboro, in Turrell. For the majority of its routing through Arkansas, I-55 generally follows U.S. Route 61 (US 61).

I-55 enters Arkansas from Memphis, Tennessee on the Memphis & Arkansas Bridge over the Mississippi River, sharing the bridge with US 61/US 64/US 70/US 79. Shortly after entering the state the highway enters West Memphis, where US 70 exits the route and becomes Broadway Avenue. I-55/US 61/US 64/US 79 form a concurrency with Interstate 40 at exit 5, an overlap that lasts 3.1 miles (5.0 km). The highways split at I-40 exit 277, with I-40/US 63/US 79 continuing west to Little Rock and I-55/US 61/US 63/US 64 running north into Marion. US 64 exits I-55/US 61/US 63 in Marion, continuing west as Old Military Road toward Wynne. Interstate 55 continues to run through farmlands of the Arkansas delta, paralleling Highway 77 until Turrell.