sentences:  US 158 breaks off just past that junction and heads east to Oxford while US 501 and NC 57 continue southward towards Durham.The two highways remain concurrent almost to the Durham County line where NC 57 turns right before Rougemont and crosses into Orange County on its way to Hillsborough where the highway ends at NC 86 just north of town.NC 57 has three highway concurrencies along its route.