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Dimensions
Dimensions
Grand Union Canal Pinch Points
Listed below are the main pinch points we want to make boaters aware of along this waterway.
Lock 82 Rickmansworth to Berkhamsted - Lock 82 Rickmansworth
Length
-Beam
4.45m14.60ft
Draught
-Headroom
-Brentford - Camp Hill tradtionally at 72' length 7' width. 14' width to Berkamsted. Measurements show longer craft possible
Lock 82 Rickmansworth to Berkhamsted - Lock 58 Berkhamsted
Length
24.1m79.07ft
Beam
-Draught
1.23m4.04ft
Headroom
-Lock 82 Rickmansworth to Berkhamsted - Bridge 155 Hemel Hempstead
Length
-Beam
-Draught
-Headroom
2.4m7.87ft
Berkhamsted to Norton Junction - Tiddenfoot Narrows, Leighton Buzzard
Length
-Beam
3.88m12.73ft
Draught
-Headroom
-Movement of former bridge abutments restricting craft
Berkhamsted to Norton Junction - Lock 8 Buckby
Length
24.2m79.40ft
Beam
-Draught
1.29m4.23ft
Headroom
-Berkhamsted to Norton Junction - Bridge 140 Berkhamsted
Length
-Beam
-Draught
-Headroom
2.33m7.64ft
Norton Junction to Napton Junction - Lock 1 Braunston
Length
24.15m79.23ft
Beam
-Draught
-Headroom
-Aylesbury Arm - Lock 2 Marsworth
Length
22.82m74.87ft
Beam
2.29m7.51ft
Draught
1.29m4.23ft
Headroom
-Aylesbury Arm - Bridge 13
Length
-Beam
-Draught
-Headroom
2.33m7.64ft
Northampton Arm - Lock 8
Length
22.67m74.38ft
Beam
-Draught
-Headroom
-Bulls Bridge to Little Venice (no locks) - Black Horse Bridge 15
Length
-Beam
4.5m14.76ft
Draught
-Headroom
-No locks
Bulls Bridge to Little Venice (no locks) - Harrow Road Bridge 3
Length
-Beam
-Draught
-Headroom
2.23m7.32ft
Brentford to Bulls Bridge
Length
22.4m73.49ft
Beam
4.42m14.50ft
Draught
1.68m5.51ft
Headroom
-Brentford to Bulls Bridge - Western Road Bridge 201
Length
-Beam
-Draught
-Headroom
3.03m9.94ft
Bulls Bridge to Stockers Lock (London boundary)
Length
21.95m72.01ft
Beam
4.28m14.04ft
Draught
1.23m4.04ft
Headroom
-Bulls Bridge to Stockers Lock (London boundary) - Packet Boat Lane Bridge
Length
-Beam
-Draught
-Headroom
2.49m8.17ft
Napton to Camp Hill - Hatton Locks
Length
24.5m80.38ft
Beam
-Draught
1.86m6.10ft
Headroom
-Napton to Camp Hill - Bridge 23
Length
-Beam
-Draught
-Headroom
2.41m7.91ft
Napton to Camp Hill - Bridge 59
Length
-Beam
3.9m12.80ft
Draught
-Headroom
-The above data is British Waterways' estimate of the dimensions of our waterways based upon local knowledge and expertise. Whilst British Waterways anticipates that this data is reasonably accurate, we cannot guarantee its precision. Therefore, this data should only be used as a helpful guide and you should always use your own judgement taking into account local circumstances at any particular time.
