One segment of 51.44 miles (82.78 km) runs from U.S. Route 79 (US 79) at Eagle Mills north to US 67 in Malvern.

A third segment of 94.41 miles (151.94 km) runs from US 65 in Clinton north to US 63 in Mammoth Spring.

The route was created during the 1926 Arkansas state highway numbering, and has seen only minor extensions and realignments since.

[9] Entering Stone County, the route runs north for several miles before meeting Highway 66 in Mountain View.

The route trails northeast to Mammoth Spring, where it meets US 63 and terminates near the Missouri state line.

[17] The route was created in January 1974 along Main Street,[16] and extended south along Circle Drive in 1985.

Route description Highway 9B begins at US 64 (Broadway Street) near the Union Pacific Railroad tracks.

The route runs north on Saint Joseph Street away from downtown Morrilton before turning east for two blocks.

[15] On May 14, 1997, the portion of the route south of US 64 was removed from the state highway system and turned back to city maintenance.

The route was created as an industrial access drive to the Morrilton Packing Company plant at the request of the Conway County judge in 1986.