A commencement ceremony was held at Halsall, north of Liverpool on 5 November 1770, with the first sod being dug by the Hon. Charles Mordaunt of Halsall Hall. The first section of the canal opened from Bingley to Skipton in 1773. By 1774 the canal had been completed from Skipton to Shipley, including significant engineering features such as the Bingley Five Rise Locks, Bingley Three Rise Locks and the seven-arch aqueduct over the River Aire, at Dowley Gap. Also completed was the branch to Bradford. On the western side, the section from Liverpool to Newburgh was dug. By the following year the Yorkshire end had been extended to Gargrave, and by 1777 the canal had joined the Aire and Calder Navigation in Leeds. From Liverpool it had reached Wigan by 1781, replacing the earlier and unsatisfactory Douglas Navigation. By now, the subscribed funds and further borrowing had all been spent, and work stopped in 1781 with the completion of the Rufford Branch from Burscough to the River Douglas at Tarleton. The war in the American colonies and its aftermath made it impossible to continue for more than a decade.