Arkansas Highway 312
|Maintained by AHTD|
|Length:||20.4 mi (32.8 km)|
|West end:||AR 18|
| US 61/AR 148
AR 18 east of Blytheville
|East end:||AR 150, Number Nine|
AR 312 begins at AR 18 south of Blytheville. The route runs east cross over I-55, followed by a junction with US 61/AR 148. AR 148/AR 312 concur east until AR 312 turns north with AR 239. These two routes cross I-55 again heading north, with AR 312 eventually turning east alone as Promise Land Road.
- Arkansas State Highway and Transportation Department. AHTD Mississippi County map Retrieved on September 15, 2009.