A second route, of 10.94 miles (17.61 km) begins at Highway 118 at Whitton and runs east to US 61 at Frenchman's Bayou.

ArDOT maintains both segments of AR 308 as part of the state highway system.

The route passes under the BNSF Railway tracks and curves past an industrial area before turning due north.

AR 308 turns east, running as a section line road to Interstate 55 (I-55), where it turns south similar to a frontage road along the southbound lanes before crossing over I-55 (no access) to a junction with US 61 in Frenchman's Bayou, where it terminates.

[1] It was rerouted in Marked Tree on October 27, 1965,[10] the former segment remains as a city street named "Old 308 Highway".

The highway begins at AR 308 and runs due east to the Marked Tree Municipal Airport.

It runs southwest as Elm Street, paralleling the Left Hand Chute of the Little River through a residential neighborhood.

[8] The business route designation was created by the Arkansas State Highway Commission on March 28, 1973.