Arkansas Highway 312

Highway 312 begins at Highway 18 at Dearman between Dell and Blytheville. The highway runs south before turning due east, passing farmhouses and agricultural fields before passing over Interstate 55 (I-55), without an intersection. East of the bridge, Highway 312 terminates at an intersection with US 61 and the Great River Road.[3] As of 2016, the route had an annual average daily traffic (AADT) of 1,700 vehicles per day (VPD).[4]

Highway 312 begins at Highway 239 (Ruddle Road) in Blytheville as Promise Land Road, named for the nearby unincorporated community of Promised Land.[5] The highway runs due east as a section line road, passing over I-55 without an intersection before straddling the southern city limits. Highway 312 continues east to intersect Highway 151, where it terminates.[3] As of 2016, the route had an AADT of 420 VPD.[6]

Highway 312 begins at Highway 18 east of Blytheville near Armorel. Though the highways is almost entirely north–south, it is signed east–west in keeping with Arkansas's numbering convention for even-numbered highways.[7] The highway runs north to serve as the southern terminus of Highway 137, before terminating at an intersection with Highway 150 near Number Nine.[3] As of 2016, the route had an AADT of 4,800 VPD near the southern terminus, and 1,200 VPD near the northern terminus.[6]