Tennessee State Route 312

The route then runs north concurrently with SR 58 for about one-half mile (800 m), before turning east as Mahan Gap Road.

The route runs through the community of Snow Hill, and about two miles (3.2 km) later comes to a four-way intersection with Ooltewah-Georgetown Road, a major connector road between the communities of Ooltewah and Georgetown.

About two and a quarter miles (3.6 km) later it intersects with Bancroft Road, a connector to McDonald.

The route continues for another two and a half miles (4.0 km) through a rural residential area, before turning sharp east, and entering the community of Prospect.

The route then continues for another two miles (3.2 km), crossing Candies Creek, Candies Creek Ridge in a gap, and entering Cleveland, before coming to an intersection with US 11 Bypass (Keith Street).