kənstɹˈʌkʃən ʌv ðɪs sˈɛɡmənt, wˌɪtʃ bɪɡˈæn ɪn tˈuː θˈaʊzənd, ɪz pɚhˈæps ðə mˈoʊst dˈɪfɪkəlt ɪnðə hˈɪstɚɹi ʌvðə mˈɛtɹoʊ.
Construction of this segment, which began in 2000, is perhaps the most difficult in the history of the Metro.