Canal Head, Cyfarthfa
1
Lock 1, Merthyr Tydfil
2
Ynysfach Lock
Dock
3
Parliament Lock
4-5
Glyndyrus Locks
Dock and Upper Abercanaid Dock
Abercanaid
6-7
Aberfan Locks
8
Pontygwaith Lock
9
Cefnglas Lock
10-17
Abercynon locks (8)
Aberdare Canal
18-23
Abercynon locks (6)
24
Lock Isaf
River Taff aqueduct
The Basin
25
Ynyscaedudwg Lock
Cilfynydd
Pontypridd
26
Ty'n y graig Lock
27
Road Lock
28-29
Lock yr Odin
Hopkin Morgan Basin
30
Trallwn Lock
Brown Lenox Chain Works Basin
31-32
Ynysangharad Locks
Treforest
Head of Doctor's Canal
33
Dyffryn Lock
34
Dynea Lock
Rhydyfelin
Boat Dock
35-37
Treble Locks
38
Taffs Well Lock
39
Caegias Lock
40
Portobello Lock
41
Tongwynlais , Ton Lock
42
Llwynymellt Lock
43
Forest Lock
44
Melingriffith Lock
45
Llandaff Lock
46
College Lock
47
Gabalfa Lock
Cambrian Yard
48
Mynachdy Lock
49
North Road Lock
50
Crockherbtown Lock
Bute Dock Feeder aqueduct
Cardiff , Queen Street Tunnel (115 yd)
Cut to West Dock
51
New Lock
Sea Lock
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For finding bridge numbers, canalplan.org.uk may be useful.