ðə mˈeɪn wˈɪɹ, wˌɪtʃ wʌz bˈɪlt θˈɜːtiːn jˈɪɹz lˈeɪɾɚ ðɐn ðə lˈɑːk, ɹˈʌnz əkɹˌɑːs ðɪ ˈoʊld nˌævɪɡˈeɪʃən ʌvðə ɹˈɪvɚ.
The main weir, which was built thirteen years later than the lock, runs across the old navigation of the river.