ɪn ˈeɪpɹəl wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd ˈeɪɾi θɹˈiː ðə dʒˌiːˌiːˈɑːɹ ɐpɹˈuːvd ɐ kwˈoʊt baɪ bˈɪldɚz mˈɛsrz bˈɛnɪt bɹˈoʊz. ʌv dˈaʊnæm mˈɑːɹkɪt ænd wˈɜːk kəmˈɛnst ˌɔn klˈɪɹɪŋ ɐ spˈeɪs nˈɔːɹθ ʌvðɪ ˈɪpswɪtʃ tə kˈeɪmbɹɪdʒ lˈaɪn æt ðɪ ˈiːst ˈɛnd ʌv wˈɔːɹən hˈɪl tˈʌnəl.
In April 1883 the GER approved a quote (by builders Messrs Bennett Bros. of Downham Market) and work commenced on clearing a space north of the Ipswich to Cambridge line at the east end of Warren Hill tunnel.