 Somewhere north of the Montgomery-Treutlen County Line, a second northbound lane forms along the left side of the existing northbound lane.The inner northbound lane becomes the primary lane as the outer-northbound lane ends just before the intersection with Lawson Beck Road, only for a second southbound lane to form again north of Mount Olive Church Road until north of the intersection with Sessions Road.Within Soperton US 221/SR 56 gains the name Mount Vernon Road, but north of Fowler Street and South Third Street, it curves to the right to intersect and become South Second Street.