▁NC   5 5 , ▁extending ▁farther ▁west ▁towards ▁Hills borough ▁which ▁can ▁be ▁reached ▁by ▁continu ing ▁on ▁US   7 0 . ▁ ▁Route ▁description ▁ ▁History ▁ ▁NC   7 5 1 ▁is ▁a ▁route ▁formed ▁early ▁during ▁the ▁creation ▁of ▁the ▁North ▁Carolina ▁route ▁system . ▁The ▁original ▁system ▁established ▁primary ▁routes ▁with ▁two ▁digit ▁numbers ▁and ▁sp urs ▁with ▁an ▁extra ▁digit ▁at ▁the ▁end . ▁NC   7 5 1 ▁then ▁was ▁the ▁first ▁sp ur ▁off ▁of ▁NC   7 5 ▁which ▁ran ▁along ▁the ▁basic ▁route ▁of ▁today ' s ▁US   1 5 ▁and ▁was ▁supp l anted ▁by ▁it , ▁and ▁then ▁also ▁by ▁US   5 0 1 ▁in ▁the ▁late ▁ 1 9 2 0 s . ▁NC   7 5 1 ' s ▁first ▁routing ▁took ▁it ▁from ▁NC   7 5 ▁( Old ▁Chap el ▁Hill ▁Road ▁in ▁Dur ham ) ▁to ▁NC   1 0 , ▁which ▁is ▁now ▁US   7 0 . ▁In ▁the ▁ 1 9 5 0 s ▁with ▁US   1 5 - 5 0 1 ▁put ▁onto ▁a ▁new ▁route ▁to ▁the ▁north , ▁NC   7 5 1 ▁was ▁extended ▁along ▁Chap el ▁Hill ▁Street ▁( now ▁University ▁Drive ) ▁and ▁south ▁along ▁Hope ▁Valley ▁Road ▁to ▁NC   5 4 . ▁Later ▁it ▁was ▁extended ▁further ▁south ▁to ▁US   6 4 . ▁ ▁J unction ▁list ▁ ▁Special ▁routes ▁ ▁Dur ham ▁tr uck ▁route ▁ ▁North ▁Carolina ▁Highway