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.
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.