State Route 115 is a three-mile (5 km) long state route in Coosa County. The southern terminus of the route is at its junction with State Route 9 in eastern Coosa County. The northern terminus is at the junction with U.S. Highway 280 northwest of Alexander City at Kellyton.

State Route 115 is routed along a two-lane route in southeastern Coosa County. It travels northeastwardly from its junction with SR-9 towards its northern end at US-280. The route serves as a shortcut between SR-9 and US-280.

The entire route is in Coosa County.