River Thames (above Lechlade)
The maximum dimensions for a boat to be able to travel on the waterway are 35 feet long and 10 feet wide. The maximum headroom is not known. The maximum draught is not known.
Moderate sized boats can only get as far as Hannington Bridge (and if going that far it may be difficult to turn around). Beyond that it's really only suitable for very small boats such as canoes.
This waterway is excluded by default from route planning with the following explanation: "only navigable by small craft"
The navigational authority for this waterway is Environment AgencyRelevant publications — Waterway Maps:
- Waterway Routes 01M - England and Wales Map
- Waterway Routes 55M - Cotswold Canals Map (Free Download)
- Waterway Routes 60M - River Thames (All) Map (Downloadable)
- Waterway Routes 58M - River Thames (Upper) Map (Downloadable)
Relevant publications — Waterway Guides:
| Thames - Thames and Severn Canal - Coln Junction Junctions of the River Thames, Thames and Severn Canal and the River Coln (Inglesham) |
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| Inglesham (St. John's Church) | 2½ furlongs | 0 locks | |
| Thames - Cole Junction No 1 The first junction of the River Cole and the River Thames |
7½ furlongs | 0 locks | |
| Hannington Bridge | 3 miles and 3¾ furlongs | 0 locks | |
| Kempsford St. Mary's Church |
4 miles and 6½ furlongs | 0 locks | |
| Castle Eaton Bridge | 6 miles and 1½ furlongs | 0 locks | |
| Castle Eaton - Thames Path The Thames Path leaves the river here. |
6 miles and 2¼ furlongs | 0 locks | |
| Water Eaton House Bridge | 8 miles and 5¼ furlongs | 0 locks | |
| Thames - Ray Junction Junction of the River Thames and the River Ray |
8 miles and 6¼ furlongs | 0 locks | |
| Eysey Footbridge | 9 miles and 4 furlongs | 0 locks | |
| Thames - Ampney Brook Junction Junction of the River Thames and the Ampney Brook |
9 miles and 4¼ furlongs | 0 locks | |
| Cricklade Pipe Bridge | 9 miles and 5¾ furlongs | 0 locks | |
| Ermine Way Bridge | 9 miles and 7 furlongs | 0 locks | |
| Thames - Key Junction Junction of the River Thames and the River Key |
9 miles and 7¼ furlongs | 0 locks | |
| Cricklade - Thames Path Resumption of Thames Path beside river below Cricklade. |
10 miles and 1 furlong | 0 locks | |
| Cricklade Sewage Works Bridge | 10 miles and 1½ furlongs | 0 locks | |
| Thames - Churn Junction Junction of the River Thames and the River Churn |
10 miles and 2½ furlongs | 0 locks | |
| High Bridge (Cricklade) Cricklade is the official limit of the navigable R. Thames, though realistically, only canoes or similar can use the river here. |
10 miles and 3¼ furlongs | 0 locks |
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Wikipedia has a page about River Thames
The River Thames ( (listen) TEMZ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn.
It flows through Oxford (where it is called the Isis), Reading, Henley-on-Thames and Windsor. The lower reaches of the river are called the Tideway, derived from its long tidal reach up to Teddington Lock. It rises at Thames Head in Gloucestershire, and flows into the North Sea via the Thames Estuary. The Thames drains the whole of Greater London.
Its tidal section, reaching up to Teddington Lock, includes most of its London stretch and has a rise and fall of 23 feet (7 m). Running through some of the driest parts of mainland Britain and heavily abstracted for drinking water, the Thames' discharge is low considering its length and breadth: the Severn has a discharge almost twice as large on average despite having a smaller drainage basin. In Scotland, the Tay achieves more than double the Thames' average discharge from a drainage basin that is 60% smaller.
Along its course are 45 navigation locks with accompanying weirs. Its catchment area covers a large part of south-eastern and a small part of western England; the river is fed by at least 50 named tributaries. The river contains over 80 islands. With its waters varying from freshwater to almost seawater, the Thames supports a variety of wildlife and has a number of adjoining Sites of Special Scientific Interest, with the largest being in the remaining parts of the North Kent Marshes and covering 5,449 hectares (13,460 acres).