The Northern Arc was to run just north of Highway 20, having a major interchange with I-75 in Bartow County, I-575 in Cherokee County, GA 400 in Forsyth County, and I-85 in Gwinnett County.
ðə nˈɔːɹðɚn ˈɑːɹk wʌz tə ɹˈʌn dʒˈʌst nˈɔːɹθ ʌv hˈaɪweɪ twˈɛnti, hˌævɪŋ ɐ mˈeɪdʒɚɹ ˌɪntɚtʃˈeɪndʒ wɪð aɪ sˈɛvənti fˈaɪv ɪn bˈɑːɹɾoʊ kˈaʊnti, aɪ fˈaɪvhˈʌndɹɪd sˈɛvənti fˈaɪv ɪn tʃˈɛɹoʊkˌiː kˈaʊnti, dʒˌiːˈeɪ fˈoːɹhˈʌndɹɪd ɪn fɔːɹsˈɪθ kˈaʊnti, ænd aɪ ˈeɪɾi fˈaɪv ɪn ɡwˈɪnɪt kˈaʊnti.