ðə ɹˈɛzɚvwˌɑːɹ wʌz nˈeɪmd fɚðə fˈɔːɹmɚ tˈaʊn ʌv ɹˈɑːkpoːɹt, wˌɪtʃ ɪɾ ˈɔːlmoʊst kəmplˈiːtli səbmˈɜːdʒd ɪnðə nˈaɪntiːnhˈʌndɹɪd fˈɪfti z.
The reservoir was named for the former town of Rockport, which it almost completely submerged in the 1950s.