bˈɪlt pɹˈɪnsɪpəli baɪ kˈɑːnvɪkt lˈeɪbɚ wɪð ɡɹˈænɪt fɹʌmðə pˈiːnəl sˈɛɾəlmənt æt mˈæzɑːɹɹˌuːni nˈaʊ mˈæzɑːɹɹˌuːni pɹˈɪzən, ðə fˈɜːst sˈɛkʃən, wˌɪtʃ ɹˈæn fɹʌm fˈɔːɹt ɡɹˈɔɪn tə ɹˈaʊnd hˈaʊs wʌz kəmplˈiːɾᵻd baɪ wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪksti.
Built principally by convict labor with granite from the Penal Settlement at Mazaruni (now Mazaruni Prison), the first section, which ran from Fort Groyne to Round House was completed by 1860.