The Bridgewater Canal was commissioned by Francis Egerton, 3rd Duke of Bridgewater to transport coal from his mines in Worsley to Manchester. Opening in 1761, the original canal was on a single level without locks and cost £168,000; James Brindley was the engineer. An extension from Manchester to Runcorn, where the canal originally joined the River Mersey, was completed in 1776. The canal was later extended from Worsley to Leigh.
Often considered to be the first true canal, the Bridgewater required the construction of an aqueduct to cross the River Irwell, one of the first of its kind. The stretch to Runcorn had a flight of ten locks which was "the wonder of their time". Its success helped to inspire a period of intense canal building, known as "canal mania". The canal later faced intense competition from the Liverpool and Manchester Railway and the Macclesfield Canal. The last commercial freight traffic was carried in 1975; the Bridgewater now forms part of the Cheshire Ring network and is used by pleasure craft and rowing clubs. It is one of the few canals in Britain not to have been nationalised, and remains privately owned.