All Tunnels

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Canal tunnels, with their location and the waterway they’re on. Some have rules on passage, such as booked or escorted transits, so check before you travel.

New CRT Waterway Features
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Standedge Tunnel

Standedge Tunnel takes the Huddersfield Narrow Canal under the Pennines, from Tunnel End at Marsden in West Yorkshire to Diggle in Greater Manchester. It is more than 3 miles (about 5 km) long and is the longest, highest and deepest canal tunnel in Britain, with almost 200 m of rock above it at the deepest point. There is no towpath: working boats were legged through while the horses were led over the moor. The tunnel took from 1794 to 1811 to build, with Benjamin Outram as the first engineer. The last working boat went through in 1921, and the canal closed in 1944. After restoration the tunnel reopened to boats in 2001. Three railway tunnels run alongside it, and one of them is still in use. Boats need to book passage with the Canal & River Trust. You steer your own boat, with a Trust chaperone on board. Boats must be no more than 70 ft long, 6 ft 10 in wide, 6 ft 2 in high above the water and 3 ft 3 in deep. Petrol-engined and fibreglass boats are not allowed. The Standedge Tunnel visitor centre is in the old warehouse at Tunnel End. Waterway: Huddersfield Narrow Canal