ðə fˈɜːst ˈɑːɹtʃ ɔnðə wˈɛst sˈaɪd wʌz ɹᵻplˈeɪst baɪ ðə pɹˈɛzənt nˌævɪɡˈeɪʃən ˈɑːɹtʃ wɛn ðə ʃˈænən skˈiːm wʌz bˈɪlt dˈaʊnstɹiːm ɪn nˈaɪntiːnhˈʌndɹɪd twˈɛnti fˈaɪv twˈɛnti nˈaɪn.
The first arch on the west side was replaced by the present navigation arch when the Shannon Scheme was built downstream in 1925–29.