Latitude: 51.778 / 51°46'40"N
Longitude: -0.6014 / 0°36'5"W
OS Eastings: 496586
OS Northings: 209737
OS Grid: SP965097
Mapcode National: GBR F4X.JRL
Mapcode Global: VHFRX.JKFV
Plus Code: 9C3XQ9HX+5C
Entry Name: Lock No 48 and Bridge No 138 on Grand Union Canal
Listing Date: 2 December 1986
Grade: II
Source: Historic England
Source ID: 1100407
English Heritage Legacy ID: 157774
ID on this website: 101100407
Location: Dudswell, Dacorum, Hertfordshire, HP4
County: Hertfordshire
District: Dacorum
Civil Parish: Northchurch
Built-Up Area: Berkhamsted
Traditional County: Hertfordshire
Lieutenancy Area (Ceremonial County): Hertfordshire
Church of England Parish: Northchurch
Church of England Diocese: St.Albans
Tagged with: Lock
NORTHCHURCH WHARF LANE
SP 90 NE (south side)
Dudswell
3/243
Lock No 48 and Bridge No 138
- on Grand Union Canal
GV II
Canal lock and roadbridge. Circa 1799 as a lock and bridge on the Grand
Junction Canal (became Grand Union Canal by amalgamation 1929). Dates on
gate hinge plates 1868 on lower gate, 1884 on upper gate. Buff brick with
heavy stone edges to lock. Timber gates with timber beams on upper gates
but iron beams on lower gates. Lock 88 ft by 16 ft to accommodate narrow-
boats in pairs. Old timber bollard. Upper gates have ground paddles only,
lower gates have gate paddles only. Humped brick bridge close to lower
gates with quadrant brick steps between. Battered abutments and depressed
round arch. Band marks base of parapet the courses of which follow the hump.
Blue brick special weathered copings. A crossover bridge where tow path
changes sides and each parapet alternately has a square terminal pier with
stone capping and the other end tailing off parallel with canal. (Branch
Johnson (1970) 118-20.)
Listing NGR: SP9658609736
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