The Rochdale Canal served industrial areas on boths sides of the Pennines. John Rennie's survey was accepted and work began in 1798. It was more successful than the Huddersfield Narrow Canal because it was built to wider dimensions as a broad canal. By 1804 it was completed and open for business. The Rochdale Canal came down into the centre of Manchester and linked with the Duke of Bridgewater's Canal at Castlefield.