Cooper Bridge River Calder Huddersfield Calder and Hebble Navigation Yorkshire
The Calder and Hebble Navigation, running for 21 miles from the Aire and Calder Navigation at Wakefield to Sowerby Bridge, was one of the first navigable waterways into the Pennines. It was an extension westwards of the Aire and Calder Navigation and was surveyed by John Smeaton and the later sections by James Brindley.
Work began in 1758 to make the River Calder navigable above Wakefield. The navigation to Sowerby Bridge was completed in 1770, including a short branch to Dewsbury. Sir John Ramsden's Canal, now known as the Huddersfield Broad, was opened in 1776, providing a branch to Huddersfield.
In 1804, the Rochdale Canal opened, branching off the Calder and Hebble just before its terminus in Sowerby Bridge, crossing the Pennines to link Yorkshire with Manchester.