Fourteen Locks

Fourteen Locks
Lock 11, February 2005. The upper part of this lock was made wider, to allow boats to pass.
WaterwayCrumlin Arm (Monmouthshire canal)
OperationManual
First built1799
Length64 feet 9 inches (19.7 m)
Width9 feet 2 inches (2.79 m)
Fall160 feet (49 m)
Partially restored
Fourteen Locks
to Crumlin
21
Lock
Cefn Bridge
Visitor Centre
Pound for Lock 20
20
Lock
Pond for Lock 19
19
Lock
Pound for Lock 18
18
Lock
Pond for Lock 17
17
Lock
Weir
Pound for Lock 16
16
Lock
Pond for Lock 15
15
Lock
Pound for Lock 14
14
Lock
Pond for Lock 13
13
Lock
Pensarn Bridge
Pound for Lock 12
12
Lock
Pond for Lock 11
11
Lock
Pond for Lock 10
10
Lock
Pound for Lock 9
9
Lock
Pond for Lock 8
8
Lock
to Newport

Fourteen Locks (grid reference ST277886) is a series of locks, also known as the Cefn Flight, on the Crumlin arm of the Monmouthshire Canal at Rogerstone in Newport, South Wales. The flight of locks was completed in 1799 and raises the water level 160 ft (50 m) in just 800 yd (740 m). This is one of the steepest rises for a major run in the UK which, combined with the sheer number of locks, makes it one of the most significant in the country. The run of locks includes a series of embanked ponds, pounds, sluices and weirs to control the water supply, with no set of gates shared between individual locks. It therefore comprises a flight of locks rather than a lock staircase.