Changes from the previous version (of May 2000): The changes are mainly to the Southern Oxford and the GUC (Northampton & Leicester arms) plus the Rivers Lee, Stort, Soar, Thames & Wey. I have also been asked by the Dutch Barge Association to include the River Medway, which is now featured.
| WATERWAY GAUGES (Revised 17 Jan 01) | |||||
| Waterway | Length | Width | Draft | Air Draft | Location (Br = Bridge < = Greater than) |
| Aire & Calder | 142ft | 17ft 8ins | 7ft 6ins | 12ft 3ins | |
| Ashby Canal | No Locks | 7ft | 3ft 6ins | 6ft 6ins | Br 15 (89ins), 17 (87ins), Snareston Tunnel (75ins) |
| Avon River (Stratford) | 70ft | 13ft 6ins | 4ft | 10ft | |
| Basingstoke Canal | 72ft 6ins | 13ft 6ins | 2ft 6ins* | 7ft 6ins | Fleet to Greywell 5ft *Draft <3ft 6ins as far as Ash reported |
| Bridgewater Canal (PrestonBrook-Leigh,Castlefield-Waters Meeting) | 70 ft | 14ft 9ins | 4ft | 8ft 6ins | Preston Brook tunnel reported low |
| Calder & Hebble Navigation | 57ft 6ins | 14ft 2ins | 5ft | 9ft | Wakefield to Broadcut Top lock - Length 120ft, Width 17ft 6ins, Draft 6ft 6ins, Air Draft 11ft |
| Caldon (Etruria-Hazlehurst Junction) | 70ft | 7ft | 3ft 4ins | 5ft 9ins | Br 8,9,15,18,22 reported low & Stockton Brook Locks |
| Chelmer & Blackwater Navigation | 60ft | 16ft | 2ft | 6ft | |
| Chesterfield | 72ft | 7ft* | 3ft 6ins | 7ft | Airdrafts lower than 6ft 10ins reported * Width Stockwith-Retford 9ft 3ins |
| Coventry | 72ft | 7ft | 3ft 6ins | 6ft 6ins | Caution at Br 13. Bridges 56 & 65 reported low - no airdraft given |
| Forth & Clyde Canal (Scotland) | 70ft | 19ft 6ins | |||
| Fossdike Canal (Torksey-Lincoln) | 74ft 6ins | 15ft 2ins | 5ft | 8ft 10ins | |
| Grand Canal (Ireland) | 60ft | 13ft | |||
| Grand Union Canal (London-Braunston) | 72ft | 14ft | 3ft 6ins | 7ft 6ins | Braunston & Blisworth Tunnels 6ft 6ins at edges |
| Grand Union Canal (Braunston-Birmingham) | 72ft | 12ft 5ins* | 3ft 6ins | 7ft 6ins* | *Blue Lias br subsidence reported (Width & Height), Leamington br (reported low - no airdraft given) |
| Grand Union Canal (Norton Junction-Leicester*)incl Mkt Harborough Arm | 72ft | 7ft | 3ft 6ins | 7ft 6ins | Br 61 reported low, Br 6 on Mkt Hbrh Arm 7ft 6ins. Caution at Foxton Locks - Lock gate footboards. *Leicester-Foxton 14ft, Foxton-Mkt Harborough 12ft 6ins |
| Grand Union Canal (Northampton Branch) | 72ft | 7ft | 3ft 6ins | 7ft 6ins | Br 5 (Lift Bridge), 13 (6ft 9ins), 14 (7ft) |
| Grand Union (Slough Branch) | No locks | 14ft | 3ft 6ins | 7ft 6ins | Caution: Br 7 |
| Huddersfield Broad Canal | 57ft 6ins | 14ft 2ins | 2ft 9ins | 9ft 3ins | |
| Kennet & Avon Canal | 72ft | 13ft 10ins | 3ft 6ins | 7ft 6ins | Newbury br reported low. Care needed at Bristol Harbour moveable br |
| Llangollen | 70ft | 6ft 10ins | 2ft | 7ft 6ins | Ellesmere & Chirk tunnels + Grindley Brook Lk footboards reported low. Care needed at all locks |
| Leeds & Liverpool Canal (Including Rufford & Leigh Branches) | 62ft | 14ft | 3ft 9ins | 8ft | Gannow & Foulridge tunnels reported low |
| Lee, River | 88ft | 15ft 9ins | 6ft 9ins | 7ft 10ins* | Overall airdraft 7ft 10ins *6ft 10ins on two bridges near Hertford |
| Nene, River | 13ft | 4ft | 4ft | Northampton South Br (8ft) | |
| Macclesfield Canal (Marple-Kidsgrove (incl Bosley Locks)) | 70ft | 7ft | 3ft | Airdraft reported in excess of 6ft 10ins | |
| Medway (Allington Lock - Maidstone) | 180ft | 20ft | 6ft 6ins | 10ft 6ins | |
| Medway (Maidstone - Tonbridge) | 80ft | 18ft 6ins | 5ft 6ins* | 8ft 6ins | *Draught 4ft above Hampstead Lock |
| Middle Level: Twenty Foot River | 72ft | 14ft | 3ft 6ins | 7ft | Caution: Whittlesey Bend (sharp, narrow bend), Infields Br reported low |
| Montgomery | 72ft | 7ft | 3ft 6ins | 7ft 6ins | |
| Ouse, River Great (St Neots - Earith) | 100ft | 10ft 6ins | 3ft | 9ft | |
| Ouse, River Great (Earith - Denver) | 70ft | 12ft 6ins | 3ft | 12ft | |
| Ouse, River Yorkshire (Trent Falls - Naburn) | 150ft | 12ft | 8ft 6ins | ||
| Ouse, River Yorkshire (Naburn-York) | 150ft | 25ft 6ins | 8ft 6ins | 25ft 6ins | |
| Oxford-South | 72ft | 7ft | 3ft 3ins | 7ft | Br 145, 146, 165, 168, 173, 179, 181, 183, 188, 190, 194, 198, 200, 213, 214, 215 reported low |
| Oxford -North | 72ft | 7ft | 3ft 6ins | 7ft | Caution at Br 80, 75, 71(87ins - variable), 66, 50, 43, 14, 4 |
| Upper Peak Forest (Marple - Whaley Bridge & Buxworth) | 70ft | 7ft | 3ft | Airdraft reported in excess of 6ft 10ins. Note: Marple Locks passable with care. | |
| Lower Peak Forest | 70ft | 7ft | 3ft | Hyde Bank & Woodley tunnels plus several bridges reported low | |
| Regents | 78ft | 14ft 6ins | 4ft 6ins | 8ft 10ins | Islington & Maida Hill Tunnels reported 6ft 10ins |
| Rochdale (Sowerby Bridge-Todmorden) | 74ft | 14ft 2ins | 4ft | 9ft | Care needed at Walkleys Clog Factory Br |
| Selby Canal | 78ft 6ins | 16ft 6ins | 6ft | 10ft | |
| Sheffield & South Yorks. Navigation (Keadby - Sheffield) | 61ft 6ins | 15ft 6ins | 6ft | 10ft | |
| Shropshire Union Canal (incl Middlewich Branch) | 70ft | 7ft* | 3ft 4ins | 8ft | Care needed with footboards on Tyrley & Audlem locks *Width 14ft Ellesmere Port-Nantwich (Pinch Point 11ft at Ellesmere Port new Road Bridge) |
| Soar, River | 72ft | 14ft | 3ft 6ins | 7ft 6ins | |
| Staffs & Worcs (Great Heywood-Autherley Junct) | 72ft | 7ft | 3ft | 7ft 6ins | Autherley-Stourport awaiting report - believe lock bridges + Cookley & Dunsley tunnels low |
| Stort, River | 88ft | 13ft 4ins | 4ft | 6ft 3ins* | Roydon & Sawbridgeworth Railway Brs reported low (*less than 6ft 3ins after heavy rainfall) |
| Thames, River | 109ft* | 14ft* | 3ft* | 7ft 6ins** | **Osney Br 7ft 6ins. *Dimensions: Oxford-Lechlade (Greater on lower reaches) |
| Trent, River | 237ft | 19ft 6ins | 7ft 3ins | 11ft | |
| Trent & Mersey Canal | 70ft | 7ft | 3ft 4ins | 5ft 9ins | Br 3,5,30,32,50,51,87,114,115,165 + Harecastle,Barnton,Saltersford tunnels reported low. Lock 41 passable Sanny Stn side |
| Trent & Mersey Canal (Shardlow - Burton, Preston Brook-Croxton) | 70ft | 13ft 6ins | 3ft 4ins | 5ft 9ins | |
| Witham Navigable Drains | 72ft | 18ft | 3ft 6ins | 8ft | Note: Dimensions quoted are via Antons Gowt Lock. Otherwise Length 60ft,Width 11ft |
| Wey River | 73ft 6ins | 13ft 10ins | 2ft 6ins* | 6ft | * Draft reported <3ft 6ins Weybridge-Guildford |