Deepest Canal Locks in England

Which are the deepest canal locks in the country?
For comparison, this page lists those non-tidal canal and river locks that have a fall of over 11 feet.

Lock name Number Canal Depth Other information
Tuel Lane Lock 3/4 Rochdale 19' 8½" 6.00m manned, new lock replacing two locks
Bath Deep Lock 8/9 Kennet and Avon 19' 5" 5.92m new lock replacing two locks
Anthony Lock 77 Rochdale 15' 1½"  4.61m deepened due to mining subsidence
Vinegar Lock 10 Ashton 13' 10" 4.22m part of the Clayton flight
Lemonroyd Lock   Aire and Calder 13' 6" 4.11m new lock replacing two locks
Woodnook Lock   Aire and Calder 13' 6" 4.11m new lock replacing Altofts and Fairies Hill Locks
Etruria Top Lock 40 Trent and Mersey 13' 2" 4.01m at southern end of T&M summit
Marple Locks 1-16 Peak Forest 13' 0½" 3.98m 16 locks, total fall of 209 ft, average 13' 0½" each
Clayton Lock 8 Ashton 12' 9" 3.89m part of the Clayton flight
Stourport Broad Locks   Staffordshire and Worcestershire 12' 4" 3.76m linking Stourport Basin with River Severn, two broad locks, total fall 24' 8", average 12' 4" each
Stenson Lock 6 Trent and Mersey 12' 2" 3.71m  
Somerton Deep Lock 34 Southern Oxford 12' 0" 3.66m  
Holme Lock   River Trent 12' 0" 3.66m manned
Blowers Green Lock   Stourbridge 12' 0" 3.66m deepest lock on BCN, replaced two locks
York Street Lock   Staffordshire and Worcestershire 12' 0" 3.66m linking canal with Stourport Basin
Appley Lock 91 Leeds and Liverpool 12' 0" 3.66m parallel to two shallower (now disused) locks
Bingley Five Rise 25-29 Leeds and Liverpool 12' 0" each 3.66m 5 locks in a staircase, total rise 60', therefore 12' 0" each lock
Kidderminster Lock   Staffordshire and Worcestershire 11' 10" 3.6m  
Tardebigge Top Lock 58 Worcester and Birmingham 11' 7" 3.53m replaced an earlier vertical lift - sometimes incorrectly claimed to be 14ft
Cholmondeston Lock 1 Middlewich Branch, Shropshire Union 11' 3" 3.43m  
Hunts Lock 2 River Weaver 11' 2" 3.4m  
Denham Deep Lock 87 Grand Union Canal South 11' 1" 3.38m  
Stanthorne Lock 3 Middlewich Branch, Shropshire Union 11' 1" 3.38m  
Minshull Lock 2 Middlewich Branch, Shropshire Union 11' 0" 3.35m  
Northgate Locks, Chester 2 Shropshire Union 11' 0" 3.35m 3 locks in a staircase, total rise 33', therefore 11' 0" each lock
Tuel Lane Lock, Rochdale Canal
Tuel Lane Lock
Anthony Lock, Rochdale Canal
Anthony Lock
Vinegar Lock, Ashton Canal
Vinegar Lock

On the Manchester Ship Canal, not part of the network available to the casual canal boater, Latchford, Irlam, Barton and Mode Wheel locks each have a fall of 14' 6" (4.41m).

upper chamber of Ardnacrusha lock, Ireland, photo: BJ Goggin
Upper chamber at Ardnacrusha

This page lists deep locks in England, but it is worth mentioning Ardnacrusha in the Republic of Ireland. A dam has been constructed across the River Shannon at Ardnacrusha, as part of a hydro-electric generation scheme. The river navigation bypasses the dam in a canal channel that has a double lock (two-rise lock staircase) with a total fall of 102 feet (31m)! The two chambers each have a fall of around 68 ft and 34 ft. Passage through the double lock can take between 45 and 60 minutes.

The deepest lock in the world is Oskemen Lock, bypassing a hydro-electric dam on the River Ertis in Kazakhstan, with an incredible fall of 138 ft (42m).

Highest Canal Summits in England

Longest Canal Tunnels in England