Monmouthshire and Brecon Canal

The maximum dimensions for a boat to be able to travel on the waterway are 58 feet long and 9 feet and 2 inches wide. The maximum headroom is not known. The maximum draught is 4 feet and 7 inches.
Notable features of the waterway include Ashford Tunnel and Brynich Aqueduct
The waterway passes through Brecon
The navigational authority for this waterway is Canal & River TrustRelevant publications — Waterway Maps:
- Waterway Routes 01M - England and Wales Map
- Waterway Routes 75M - Monmouth and Brecon Canal Map (Downloadable)
Relevant publications — Waterway Guides:
Five Locks Road Limit of navigation |
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Five Locks Basin | ½ furlongs | 0 locks | |
Cwmbran Tunnel | 2¼ furlongs | 0 locks | |
Bevan's Bridge | 4¾ furlongs | 0 locks | |
Solomon’s Bridge No 47 | 5¾ furlongs | 0 locks | |
Lansdowne Winding Hole | 6½ furlongs | 0 locks | |
Crown Bridge No 48 | 7¼ furlongs | 0 locks | |
The Open Hearth PH Canalside |
1 mile and 1¼ furlongs | 0 locks | |
Panteg Bridge No 49 | 1 mile and 2¾ furlongs | 0 locks | |
Union Bridge No 50 | 1 mile and 5 furlongs | 0 locks | |
Rail Bridge No 50A | 1 mile and 7 furlongs | 0 locks | |
Coed-y-Gric Bridge No 51 | 1 mile and 7 furlongs | 0 locks | |
Pontymoile Bypass Moorings | 2 miles and ¼ furlongs | 0 locks | |
Pontymoile Bypass Bridge No 51A | 2 miles and ½ furlongs | 0 locks | |
Pontymoile Basin Junction with the Monmouthshire Canal |
2 miles and ½ furlongs | 0 locks | |
Pontymoile Footbridge No 52 | 2 miles and ½ furlongs | 0 locks | |
Aqueduct No 18 (Mon & Brec Canal) | 2 miles and 1 furlong | 0 locks | |
Afon Lwyd Aqueduct No 17 | 2 miles and 1½ furlongs | 0 locks | |
Aqueduct No 16 (Mon & Brec Canal) | 2 miles and 1¾ furlongs | 0 locks | |
The Hwy Road Bridge No 53 Pontypool Road |
2 miles and 2½ furlongs | 0 locks | |
Jockey Bridge No 55 | 2 miles and 6½ furlongs | 0 locks | |
Squires Bridge No 56 | 2 miles and 7½ furlongs | 0 locks | |
Usk Road Winding Hole | 2 miles and 7¾ furlongs | 0 locks | |
Cwmoody Winding Hole | 3 miles and 4¼ furlongs | 0 locks | |
Lower Wern Bridge No 57 | 3 miles and 4½ furlongs | 0 locks | |
Upper Wern Bridge No 58 | 3 miles and 5¾ furlongs | 0 locks | |
Keepers Bridge No 59 | 4 miles | 0 locks | |
Govera Bridge No 60 | 4 miles and 1 furlong | 0 locks | |
Troed-y-Rhiw Bridge No 61 | 4 miles and 2¼ furlongs | 0 locks | |
High Bridge No 62 | 4 miles and 4½ furlongs | 0 locks | |
Mamhilad Bridge No 63 | 4 miles and 7¼ furlongs | 0 locks | |
Skinners Bridge No 64 | 5 miles and ½ furlongs | 0 locks | |
Mortimer's Bridge No 65 With Pipe Bridge alongside |
5 miles and 1½ furlongs | 0 locks | |
Brook Farm Bridge No 66 | 5 miles and 2¾ furlongs | 0 locks | |
Pentre Lane Bridge No 67 | 5 miles and 4½ furlongs | 0 locks | |
Croes-y-Pant Lane Bridge No 68 | 5 miles and 5¾ furlongs | 0 locks | |
Field Bridge Wharf Private moorings |
5 miles and 7½ furlongs | 0 locks | |
High Houses Bridge No 69 | 5 miles and 7½ furlongs | 0 locks | |
Birdspool Bridge No 70 | 6 miles and 1 furlong | 0 locks | |
Croes-y-Pant Winding Hole | 6 miles and 1½ furlongs | 0 locks | |
Park-y-Brain Lower Bridge No 71 | 6 miles and 4 furlongs | 0 locks | |
Park-y-Brain Lane Bridge No 72 | 6 miles and 4¾ furlongs | 0 locks | |
Park-y-Brain Field Bridge No 73 Penrehoel |
6 miles and 6¾ furlongs | 0 locks | |
Saron Road Bridge No 74 | 7 miles | 0 locks | |
Goytre Arm This is the start of the Brecknock & Abergavenny section of the canal. |
7 miles and 2¼ furlongs | 0 locks | |
Goytre Aqueduct No 15 | 7 miles and 2½ furlongs | 0 locks | |
Goytre Wharf | 7 miles and 2¾ furlongs | 0 locks | |
Goytre Marina | 7 miles and 3¼ furlongs | 0 locks | |
Jenkin Rosser's Bridge No 75 | 7 miles and 4½ furlongs | 0 locks | |
Jenkin Rosser's Winding Hole | 7 miles and 4¾ furlongs | 0 locks | |
Lapstone Bridge No 76 | 7 miles and 6¾ furlongs | 0 locks | |
Preacher's Bridge No 77 | 7 miles and 7½ furlongs | 0 locks | |
Mill Turn Bridge No 78 | 8 miles and 2¼ furlongs | 0 locks | |
Mill Turn Aqueduct No 14A | 8 miles and 2½ furlongs | 0 locks | |
Llanover Winding Hole | 8 miles and 4¼ furlongs | 0 locks | |
Lower Mount Pleasant Bridge No 79 Llanover Field Bridge |
8 miles and 4¾ furlongs | 0 locks | |
Mount Pleasant Upper Bridge No 80 | 8 miles and 6 furlongs | 0 locks | |
Llanover Bridge No 81 | 8 miles and 7¾ furlongs | 0 locks | |
Llanover Bridge No 82 | 9 miles and ½ furlongs | 0 locks | |
Beech Tree Bridge No 83 | 9 miles and 2½ furlongs | 0 locks | |
Ty-coch Bridge No 84 | 9 miles and 4 furlongs | 0 locks | |
Thimbles Bridge No 85 | 9 miles and 5 furlongs | 0 locks | |
Ochram Brook Aqueduct No 14 Embanked Aqueduct over Ochram Brook, Grade: II Listed |
9 miles and 7½ furlongs | 0 locks | |
Ochram Turn Bridge No 86 | 10 miles | 0 locks | |
Poplar Bridge No 87 | 10 miles and 1 furlong | 0 locks | |
Twyn-Glas Wharf | 10 miles and 1¾ furlongs | 0 locks | |
Twyn-Glas Bridge No 88 | 10 miles and 2¼ furlongs | 0 locks | |
Barn Bridge No 89 | 10 miles and 3 furlongs | 0 locks | |
Morgan's Bridge No 90 | 10 miles and 5½ furlongs | 0 locks | |
Wooden Bridge No 91 Footpath to Llanellen a quarter of a mile |
10 miles and 6¼ furlongs | 0 locks | |
Heol Gerrig Bridge No 92 | 11 miles and ¼ furlongs | 0 locks | |
Llanellen Farm Bridge No 93 | 11 miles and 3 furlongs | 0 locks | |
Aqueduct No 13 (Mon & Brec Canal) | 11 miles and 4½ furlongs | 0 locks | |
Castle Lower Bridge No 94 | 11 miles and 6¼ furlongs | 0 locks | |
Castle Upper Bridge No 95 | 11 miles and 7¾ furlongs | 0 locks | |
Incline Bridge No 95A | 12 miles and 3¾ furlongs | 0 locks | |
Church Lane Aqueduct No 12A (Llanfoist) | 12 miles and 4 furlongs | 0 locks | |
Llanfoist Wharf Boatyard and Incline Bridge |
12 miles and 4 furlongs | 0 locks | |
Aqueduct No 12 (Mon & Brec Canal) | 12 miles and 7¾ furlongs | 0 locks | |
Govilon Turn Bridge No 96 | 13 miles and 3 furlongs | 0 locks | |
Govilon Visitor Moorings | 13 miles and 4½ furlongs | 0 locks | |
Govilon Yard Bridge No 97 | 13 miles and 4¾ furlongs | 0 locks | |
Govilon Winding Hole | 13 miles and 5¼ furlongs | 0 locks | |
Govilon Wharf | 13 miles and 5½ furlongs | 0 locks | |
Govilon Railway Bridge No 97A (disused) | 13 miles and 6¼ furlongs | 0 locks | |
Station Road Footbridge No 97B | 13 miles and 7¾ furlongs | 0 locks | |
Station Road Bridge No 98 (Govilon) with footbridge alongside |
13 miles and 7¾ furlongs | 0 locks | |
Cwm Shenkin Brook Aqueduct No 11 | 14 miles and ¾ furlongs | 0 locks | |
Pen Padrig Arm | 14 miles and 1 furlong | 0 locks | |
Govilon Aqueduct No 10 | 14 miles and 1¾ furlongs | 0 locks | |
Llanwenarth Field Bridge No 99 | 14 miles and 3 furlongs | 0 locks | |
Humphreys Bridge No 100 | 14 miles and 4 furlongs | 0 locks | |
Heol - yr -Allt Bridge No 101 | 14 miles and 6¼ furlongs | 0 locks | |
Head of the Valleys Road Bridge | 15 miles | 0 locks | |
Ty - Gwynn Bridge No 102 | 15 miles and ¼ furlongs | 0 locks | |
The Towpath Inn Canalside |
15 miles and 4 furlongs | 0 locks | |
Navigation Bridge No 103 | 15 miles and 4¼ furlongs | 0 locks | |
Gilwern Aqueduct No 9 You can hear the stream/river but barely visable |
15 miles and 5½ furlongs | 0 locks | |
Aqueduct No 8 (Mon & Brec Canal) | 15 miles and 5½ furlongs | 0 locks | |
Gilwern Wharf No 8A | 15 miles and 5¾ furlongs | 0 locks | |
Auckland Bridge No 104 Gilwern village |
15 miles and 6½ furlongs | 0 locks | |
Malford Grove Winding Hole | 16 miles | 0 locks | |
Sand Bridge No 105 | 16 miles and ½ furlongs | 0 locks | |
Ffynnon - yr -Eirin Bridge No 106 | 16 miles and 2¾ furlongs | 0 locks | |
Dan-y-Graig Bridge No 107 | 16 miles and 5¾ furlongs | 0 locks | |
Dark Bridge No 109 | 17 miles and 4¾ furlongs | 0 locks | |
Pen-Pedair Heol Winding Hole | 17 miles and 6 furlongs | 0 locks | |
Pen-Pedair Heol Narrows | 17 miles and 6¼ furlongs | 0 locks | |
Pen-Pedair Heol Marina | 17 miles and 6¼ furlongs | 0 locks | |
Pen-Pedair Heol Bridge No 110 | 17 miles and 7 furlongs | 0 locks | |
Wooden Bridge No 111 | 18 miles and ¼ furlongs | 0 locks | |
Park Bridge No 112 | 18 miles and 1¾ furlongs | 0 locks | |
Llwmws Bridge No 113 | 18 miles and 3½ furlongs | 0 locks | |
Beacon Park Boats Posh boat hire! |
18 miles and 5¾ furlongs | 0 locks | |
Lower Yard Bridge No 114 | 18 miles and 6¾ furlongs | 0 locks | |
Llangattock Wharf | 18 miles and 7 furlongs | 0 locks | |
Upper Yard Bridge No 115 | 18 miles and 7¼ furlongs | 0 locks | |
Llangattock Aqueduct No 7 It is over the Nant Onnau but not accessible or visible from towpath. |
19 miles | 0 locks | |
Ffawyddog Bridge No 116 | 19 miles and 2½ furlongs | 0 locks | |
Dan-y-Garth Bridge No 117 | 19 miles and 5½ furlongs | 0 locks | |
Workhouse Bridge No 118 Dardy Bridge |
19 miles and 7¾ furlongs | 0 locks | |
Folly Bridge No 119 | 20 miles and 1¾ furlongs | 0 locks | |
Baylis Bridge No 120 | 20 miles and 4 furlongs | 0 locks | |
Nant Llwynyrenwyn Aqueduct | 20 miles and 5¼ furlongs | 0 locks | |
Llwyncelyn Bridge No 121 | 20 miles and 5½ furlongs | 0 locks | |
Glan Usk Bridge No 121A | 20 miles and 7¼ furlongs | 0 locks | |
Fro Bridge No 122 | 21 miles and 1½ furlongs | 0 locks | |
Pen-y-Bryn Bridge No 123 | 21 miles and 3½ furlongs | 0 locks | |
Spitefull Inn Bridge No 124 | 21 miles and 5 furlongs | 0 locks | |
Dyfnant Bridge No 125 | 21 miles and 7¼ furlongs | 0 locks | |
Dyfnant Aqueduct | 21 miles and 7½ furlongs | 0 locks | |
Aberhowy Bridge No 126 Very close to B4558 |
22 miles and 2¼ furlongs | 0 locks | |
Old House Bridge No 127 | 22 miles and 4¼ furlongs | 0 locks | |
Panteague Drawbridge Bridge No 128 It was a drawbridge at one time |
22 miles and 6 furlongs | 0 locks | |
Nant Cleisfer Aqueduct No 6 | 22 miles and 7 furlongs | 0 locks | |
Panteague Bridge No 129 | 22 miles and 7¾ furlongs | 0 locks | |
Coed-Yr-Ynys Field Bridge No 130 | 23 miles and 1¾ furlongs | 0 locks | |
Llangynidr Bridge No 131 | 23 miles and 5 furlongs | 0 locks | |
Lower Lock Bridge No 132 | 23 miles and 7½ furlongs | 0 locks | |
Lower Lock No 64 | 23 miles and 7½ furlongs | 0 locks | |
Cwm Crawnon Road Pipe Bridge | 24 miles and ¼ furlongs | 1 lock | |
Coach & Horses Bridge No 133 | 24 miles and ¼ furlongs | 1 lock | |
Afon Crawnon Aqueduct No 5 | 24 miles and 1¼ furlongs | 1 lock | |
Depot Lock No 65 | 24 miles and 1½ furlongs | 1 lock | |
Cwm House Wharf Home of Country Craft Narrowboat Holidays |
24 miles and 1¾ furlongs | 2 locks | |
Coombes Lock Bridge No 134 | 24 miles and 2 furlongs | 2 locks | |
Gwlawcoed Lock No 66 | 24 miles and 3½ furlongs | 2 locks | |
Little Lock No 67 | 24 miles and 4¼ furlongs | 3 locks | |
Top Lock No 68 | 24 miles and 4½ furlongs | 4 locks | |
Toffs Lock Bridge No 135 | 24 miles and 5¼ furlongs | 5 locks | |
Workhouse Bridge No 136 | 24 miles and 6¾ furlongs | 5 locks | |
Dan-y-Graig Bridge No 137 | 25 miles and ¼ furlongs | 5 locks | |
Parsons Bridge No 138 | 25 miles and 2½ furlongs | 5 locks | |
Llanddetty Bridge No 139 | 25 miles and 5¼ furlongs | 5 locks | |
Llanddetty Footbridge Snake Bridge |
25 miles and 6 furlongs | 5 locks | |
Lower Wenallt Bridge No 140 | 25 miles and 7 furlongs | 5 locks | |
Upper Wenallt Bridge No 141 | 26 miles and ½ furlongs | 5 locks | |
Ashford Tunnel (southern entrance) | 26 miles and 2¼ furlongs | 5 locks | |
Ashford Tunnel (northern entrance) | 26 miles and 4 furlongs | 5 locks | |
Graig-Las Bridge No 142 Travellers Rest Bridge-Brecon Day Boats |
27 miles | 5 locks | |
Travellers Rest Pipe Bridge | 27 miles and ¾ furlongs | 5 locks | |
Talybont Railway Bridge (disused) | 27 miles and 1½ furlongs | 5 locks | |
White Hart Bridge No 143 | 27 miles and 1½ furlongs | 5 locks | |
Talybont Aqueduct No 4 | 27 miles and 2 furlongs | 5 locks | |
Talybont Drawbridge No 144 | 27 miles and 3¼ furlongs | 5 locks | |
Beniah Bridge No 145 | 27 miles and 4½ furlongs | 5 locks | |
Chilson Bridge No 146 | 27 miles and 5¾ furlongs | 5 locks | |
Cross Oak Bridge No 147 | 28 miles and 1¼ furlongs | 5 locks | |
Cross Oak Lift Bridge No 148 | 28 miles and 2¾ furlongs | 5 locks | |
Gathinog Lift Bridge No 149 | 28 miles and 3¾ furlongs | 5 locks | |
Penawr Lift Bridge No 150 | 28 miles and 4¾ furlongs | 5 locks | |
Penawr Bridge No 151 | 28 miles and 6 furlongs | 5 locks | |
Castle Bridge No 152 | 29 miles and 2 furlongs | 5 locks | |
Cross Keys Bridge No 153 | 29 miles and 3¾ furlongs | 5 locks | |
Royal Oak PH Canalside |
29 miles and 4 furlongs | 5 locks | |
Pencelli Bridge No 154 | 29 miles and 4½ furlongs | 5 locks | |
Pencelli Winding Hole | 29 miles and 4¾ furlongs | 5 locks | |
Pencelli Court Lift Bridge No 155 | 29 miles and 5¼ furlongs | 5 locks | |
Low Bridge No 156 | 29 miles and 7¾ furlongs | 5 locks | |
Llanbrynean Bridge No 157 | 30 miles and 3 furlongs | 5 locks | |
Nant Menascin Aqueduct No 3 | 30 miles and 4¾ furlongs | 5 locks | |
Storehouse Bridge Winding Hole | 30 miles and 6 furlongs | 5 locks | |
Storehouse Bridge No 158 | 30 miles and 6¼ furlongs | 5 locks | |
Ty-Newydd Lower Bridge No 159 | 30 miles and 7¼ furlongs | 5 locks | |
Ty-Newydd Marina | 30 miles and 7¾ furlongs | 5 locks | |
Ty-Newydd Upper Bridge No 160 | 31 miles and ¾ furlongs | 5 locks | |
Bell Ear Bridge No 161 | 31 miles and 5½ furlongs | 5 locks | |
Brynich Turn Bridge Winding Hole | 31 miles and 7¼ furlongs | 5 locks | |
Brynich Turn Bridge No 162 | 31 miles and 7½ furlongs | 5 locks | |
Brynich Aqueduct No 2 (southern end) Also called River Usk Aqueduct |
32 miles | 5 locks | |
Brynich Aqueduct No 2 (northern end) Over River Usk |
32 miles and ¼ furlongs | 5 locks | |
Cefn Brynich Bridge No 163 Groesffordd Road Bridge |
32 miles and 1½ furlongs | 5 locks | |
Brynich Lock No 69 | 32 miles and 1½ furlongs | 5 locks | |
Cefn Brynich Aqueduct No 1 | 32 miles and 6¼ furlongs | 6 locks | |
Brynich Bridge No 164 A40 Field Bridge |
32 miles and 6¾ furlongs | 6 locks | |
Brecon Flyover Bridge No 164A Brynich Bridge Long Road Bridge (68yds) under the A40 dual carriageway |
33 miles and ¼ furlongs | 6 locks | |
Watton Road Bridge No 165 | 33 miles and 7½ furlongs | 6 locks | |
Gasworks Lane Road Bridge No 166 | 34 miles and 1½ furlongs | 6 locks | |
Dadfords Bridge Winding Hole | 34 miles and 1¾ furlongs | 6 locks | |
Dadfords Bridge No 167 Northern Mon and Brec terminus bridge |
34 miles and 2 furlongs | 6 locks | |
Theatre Basin End of navigation and Brecon town centre |
34 miles and 2½ furlongs | 6 locks |
- Royal Oak Public House — associated with Royal Oak PH
- Public House
- The Towpath Inn — associated with The Towpath Inn
- Public House
- The Open Hearth Pub — associated with The Open Hearth PH
- Public House
Wikipedia has a page about Monmouthshire and Brecon Canal
The Monmouthshire and Brecon Canal (Welsh: Camlas Sir Fynwy a Brycheiniog) is a small network of canals in South Wales. For most of its currently (2018) navigable 35-mile (56 km) length it runs through the Brecon Beacons National Park, and its present rural character and tranquillity belies its original purpose as an industrial corridor for coal and iron, which were brought to the canal by a network of tramways and/or railroads, many of which were built and owned by the canal company.
The "Mon and Brec" was originally two independent canals – the Monmouthshire Canal from Newport to Pontymoile Basin (including the Crumlin Arm) and the Brecknock and Abergavenny Canal running from Pontymoile to Brecon. Both canals were abandoned in 1962, but the Brecknock and Abergavenny route and a small section of the Monmouthshire route have been reopened since 1970. Much of the rest of the original Monmouthshire Canal is the subject of a restoration plan, which includes the construction of a new marina at the Newport end of the canal.