ðə pɹˈɛzənt dˈæm, wˌɪtʃ mˈoːɹ ðɐn dˈʌbəld ðə lˈeɪkz sˈaɪz, wʌz kənstɹˈʌktᵻd baɪ ɡɹˈeɪt wˈɛstɚn pˈaʊɚ fɹʌm nˈaɪntiːnhˈʌndɹɪd twˈɛnti sˈɪks tə nˈaɪntiːnhˈʌndɹɪd twˈɛnti sˈɛvən.
The present dam, which more than doubled the lake's size, was constructed by Great Western Power from 1926 to 1927.