The Rochdale Canal is a navigable broad canal in Northern England, between...

The Rochdale Canal is a navigable broad canal in Northern England, between Manchester and Sowerby Bridge, part of the connected system of the canals of Great Britain. Its name refers to the town of Rochdale, in Greater Manchester, through which it passes.

The Rochdale is a broad canal because its locks are wide enough to allow vessels of 14 feet width. The canal runs for 32 miles (51 km) across the Pennines from the Bridgewater Canal at Castlefield Basin in Manchester to join the Calder and Hebble Navigation at Sowerby Bridge in West Yorkshire.

As built, the canal had 92 locks. Whilst the traditional lock numbering has been retained on all restored locks, and on the relocated locks, the canal now has 91. Locks 3 and 4 have been replaced with a single deep lock, Tuel Lane Lock, which is numbered 3/4.