ˈiːst ʌvðə sˈɛntɹəl kˈɑːɹlɪn ˈɛɹiə, ˌɛsˈɑːɹ tˈuːhˈʌndɹɪd twˈɛnti wˈʌn tˈɜːnz nˈɔːɹθ tə ɹᵻtˈɜːn tʊ aɪ ˈeɪɾi, wˌɛɹ ðə ɹˈaʊt mˈiːts ɪts ˈɛnd.
East of the central Carlin area, SR 221 turns north to return to I-80, where the route meets its end.