Lock Dimensions

What's the maximum length of boat to cruise a given canal?

Navigations listed below have lock dimensions of less than 72 ft long. Unless you know otherwise!!!

71ft 6in

Birmingham Canal Navigations
Birmingham & Fazeley Canal
Worcester & Birmingham Canal
Middle Level Navigations (boats over 60ft can only pass through Salters Lode on to the tidal Ouse at level water).

70ft

Huddersfield Narrow Canal
Macclesfield Canal
Peak Forest Canal
Sleaford Navigation
Witham Navigable Drains
Union Canal - Scotland (not connected to the main system)

69ft

River Ancholme above Harlam Hill Lock (8 miles)

68ft 6in

Forth & Clyde Canal - Scotland (not connected to main system)

65ft

Stainforth & Keadby Canal

64ft 9in

Monmouthshire & Brecon Canal (not connected to main system)

62ft

Leeds & Liverpool Canal - Rufford branch

61ft 6in

Sheffield & South Yorkshire Navigations

60ft

Yorkshire Ouse (above City of York to Swale Nab)
Leeds & Liverpool Canal - Wigan to Leeds
Chelmer & Blackwater Navigation (not connected to main system)

58ft

River Ure Navigation (incl Ripon Canal)
Pocklington Canal (not all locks restored)

57ft 6in

Calder & Hebble Navigation
Huddersfield Broad Canal

55ft

River Derwent

54ft

Bridgewater & Taunton Canal (not connected to main system)

40ft

Little Ouse River - last lock near Brandon