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|direction_b=North |terminus_b= at the TN line |counties=New Hanover, Brunswick, Pender, Sampson, Harnett, Lee, Chatham, Randolph, Guilford, Forsyth, Yadkin, Wilkes, Watauga |previous_type=NC |previous_route=411 |next_type=I |next_route=440 }} U.S. Route 421 traverses approximately across North Carolina; from Fort Fisher, on a peninsula between the Atlantic and Cape Fear River, to the Tennessee state line near the community of Zionville. The highway is nominally labeled "north" and "south" throughout North Carolina, though it really follows a general "northwest-southeast" path, and the segment from Greensboro to Boone is almost due east-west, with compass "west" corresponding to the signed "north" direction. Majority of the highway is part of the North Carolina Strategic Highway Corridors system.〔(【引用サイトリンク】title=NCDOT: Strategic Highway Corridors )〕 Because of this designation, the state has made numerous changes converting a rural two-lane highway into a major Freeway/Expressway with 4 or more 6 lanes. Finding a road named ''"Old U.S. Route 421"'' is not uncommon along the entire route. ==Route description== 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「U.S. Route 421 in North Carolina」の詳細全文を読む スポンサード リンク
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