U.S. Federal Route 70 runs east-west in Crittenden County. This runs along the southside of Interstate 40. At West Memphis, it joins with Interstate 55 to head into Tennessee. U.S. Rt. 70 passes through the following towns in Crittenden County. Shearerville Leh West Memphis U.S. Rt. 70 is multi-plexed in Crittenden County. Interstate 55, from West Memphis to the Arkansas/Tennessee State Line. U.S. Rt. 61, from West Memphis to the Arkansas/Tennessee State Line. U.S. Rt. 64, from West Memphis to the Arakansas/Tennessee State Line. U.S. Rt. 79, from West Memphis to the Arkansas/Tennessee State Line. U.S. Rt. 70 intersects the following highways in Crittenden County. U.S. Rt. 79, at Shearville. Arkansas State Route 50, near Julius. Arkansas State Route 147, at Leh. Arkansas State Route 77, at West Memphis. Arkansas State Route 191, at West Memphis. Arkansas State Route 38, at West Memphis. Interstate 55, at West Memphis. U.S. Rt. 61, at West Memphis. U.S. Rt. 64, at West Memphis. U.S. Rt. 79, at West Memphis. Arkansas State Route 131, at West Memphis.
NB I-55/U.S. Rt. 61; WB U.S. Rt. 64-70; SB U.S. Rt. 79 at the Arkansas Welcome sign. SB I-55/U.S. Rt. 61; EB U.S. Rt. 64/70; NB U.S. Rt. 79 crossing the Mississippi River. SB I-55/U.S. Rt. 61; EB U.S. Rt. 64/70 near the Mississippi River. SB I-55/U.S. Rt. 61; EB U.S. Rt. 64/70; NB U.S. Rt. 79 near West Memphis. A BGS on NB I-55/U.S. Rt. 61; WB U.S. Rt. 64-70; SB U.S. Rt. 79.