The Huddersfield Broad Canal or Sir John Ramsden's Canal, is a wide-locked navigable canal in West Yorkshire in northern England. The waterway is 3.75 miles (6 km) long and has 9 wide locks. It follows the valley of the River Colne and connects the Calder and Hebble Navigation at Cooper Bridge junction with the Huddersfield Narrow Canal near Aspley Basin in Huddersfield. Construction was authorised in 1774, and the canal opened two years later. It became part of a trans-Pennine route in 1811 when the Huddersfield Narrow Canal joined it at Aspley Basin. Traffic was hampered by the long narrowboats used on the narrow canal that could not use Ramsden's Canal's shorter locks. Goods were transhipped at Aspley Basin, and although shorter narrowboats were built, its success as a trans-Pennine route was overshadowed by the Rochdale Canal which had wide locks throughout and joined the Calder and Hebble Navigation at Sowerby Bridge. The canal passed into railway ownership in 1845, but prospered into the 20th century. Railway ownership ceased in 1945, when it was bought by the Calder and Hebble Navigation, at which point the narrow canal across the Pennines was abandoned. The broad canal carried commercial traffic, particularly coal for power stations, until 1953. After the formation of British Waterways in 1962, the canal was designated a cruiseway in 1968, which meant that it was mainly for leisure traffic. Use of the canal has increased significantly since the Huddersfield Narrow Canal re-opened in 2001, as it is no longer a dead end. Many of its structures have been given listed building status, in recognition of their historic importance. History The canal appears to have been planned for some time before it was authorised, as the Calder and Hebble Navigation obtained an Act of Parliament for its canal in 1758, which included a clause to prevent interference with any future navigation "from the Mouth of the River Coln to the town of Huddersfield". In 1766, Robert Whitworth surveyed a route for such a canal, and the Calder and Hebble's 1769 Act contained a similar clause. A second survey was carried out in 1773 by Luke Holt and Joseph Atkinson for the Ramsden family, who owned the whole of Huddersfield at the time and keen to develop the canal. The family also owned roughly one-third of the land along the proposed route of the canal. Holt had worked on the construction