temporarily becomes undivided through Ben Hur, where the highway begins to parallel CSX's Cumberland Valley Subdivision rail line. The highway drops to two lanes and crosses over the rail line as it enters the town of Pennington Gap. US 58 Alt.
US 58 Alternate briefly becomes a single lane road in Ben Hur before aligning with CSX's Cumberland Valley Subdivision rail line.  The highway then narrows to two lanes and crosses over the rail line as it enters Pennington Gap.