Barton Swing Aqueduct in the context of "Bridgewater Canal"

The Manchester Ship Canal is a 36-mile-long (58 km) inland waterway in the North West of England linking Manchester to the Irish Sea. Starting at the Mersey Estuary at Eastham, near Ellesmere Port, Cheshire, it generally follows the original routes of the rivers Mersey and Irwell through the historic counties of Cheshire and Lancashire before joining the latter at Salford Quays. Several sets of locks lift vessels about 60 ft (18 m) to the canal's terminus in Manchester. Landmarks along its route include the Barton Swing Aqueduct, the world's only swing aqueduct, and Trafford Park, the world's first planned industrial estate and one of the largest in Europe.

The rivers Mersey and Irwell were first made navigable in the early 18th century. Goods were also transported on the Runcorn extension of the Bridgewater Canal (from 1776) and the Liverpool and Manchester Railway (from 1830) but by the late 19th century the Mersey and Irwell Navigation had fallen into disrepair and was often unusable. Manchester's business community viewed the charges imposed by Liverpool's docks and the railway companies as excessive. A ship canal was proposed to give ocean-going vessels direct access to Manchester. The region was suffering from the Long Depression; the canal's proponents argued that the scheme would boost competition and create jobs. They gained public support for the scheme, which was first presented to Parliament as a bill in 1882. Faced with stiff opposition from Liverpool, the canal's supporters were unable to gain the necessary act of Parliament to allow the scheme to go ahead until 1885.