号州际公路(Interstate )是一条南北方向的州际公路。该公路连接了北卡罗来纳州里奇蒙县和格林斯伯勒,全长82.4英里。外部链接High Priority Corridors @ AARoads.com: Interstate 73/74 (Corridor 5)Interstate 73 Environmental Impact Study (South Carolina)The South Carolina I-73 StoryI-73/74 in North Carolina (New URL)NCRoads.com: I-73The Ohio Interstate 73 PageNational I-73/74/75 Corridor Association