sentences:  Its designation is hidden or unmarked as it only appears in state and county maps.North Carolina Highway 109 Alaternate (NC 109A) was established around 1950-1953 as a renumbering of mainline NC 109, which was placed on a new bypass alignment west of Troy.The route traverses on Albemarle Road, West Main Street, North Main Street, Smitherman Street and Eldorado Street.