Norfolk Broads (River Thurne - Main Navigation)
The Norfolk Broads (River Thurne - Main Navigation) was built by Thomas Telford and opened on January 1 1816. Expectations for manure traffic to Wokingham never materialised and the canal never made a profit for the shareholders. Although proposals to close the Norfolk Broads (River Thurne - Main Navigation) were submitted to parliament in 1972, the carriage of coal from Arun to Newton prevented closure. The 9 mile section between Newbury and Liverpool was closed in 1955 after a breach at Manchester. Despite the claim in "A Very Special Boat" by William Jones, there is no evidence that Edward Edwards ever swam through Bassetlaw Tunnel in 36 hours

The exact dimensions of the largest boat that can travel on the waterway are not known. The maximum headroom is not known. The maximum draught is not known.
It has junctions with the Norfolk Broads (Candle Dyke) at Thurne - Candle Dyke Junction and with the Norfolk Broads (River Thurne - Womack Water) at Thurne - Womack Water Junction.
| Bure - Thurne Junction Junction of the River Bure and River Thurne |
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| St Bennets Level Mill | 2 furlongs | 0 locks | |
| Thurne - Thurne Dyke Junction Junction of the River Thurne and Thurne Dyke |
3 furlongs | 0 locks | |
| Thurne Mill | 3¼ furlongs | 0 locks | |
| Thurne - Womack Water Junction Junction of the River Thurne and Womack Water |
1 mile and 2¼ furlongs | 0 locks | |
| Broads Haven Marina | 2 miles and 7 furlongs | 0 locks | |
| Potter Heigham Old Bridge Average high water clearance of 6ft 9in (2.06m) |
2 miles and 7¾ furlongs | 0 locks | |
| High Road Bridge | 3 miles and ½ furlongs | 0 locks | |
| Thurne - Candle Dyke Junction Junction of the River Thurne and Candle Dyke |
4 miles and 3 furlongs | 0 locks | |
| Ferrygate Lane Swing Bridge | 4 miles and 5¼ furlongs | 0 locks | |
| River Thurne - Martham Ferry Dyke Junction Junction of the River Thurne and Martham Ferry Dyke |
4 miles and 5½ furlongs | 0 locks | |
| Martham Broad (west) | 5 miles and 6 furlongs | 0 locks | |
| Martham Broad (east) | 5 miles and 7½ furlongs | 0 locks | |
| West Somerton Staithe | 6 miles and 4 furlongs | 0 locks |
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Wikipedia has a page about Norfolk Broads
The Broads (known for marketing purposes as The Broads National Park) is a network of mostly navigable rivers and lakes in the English counties of Norfolk and Suffolk. The lakes, known as broads, were formed by the flooding of peat workings. The Broads, and some surrounding land, were constituted as a special area with a level of protection similar to a national park by the Norfolk and Suffolk Broads Act 1988. The Broads Authority, a special statutory authority responsible for managing the area, became operational in 1989.
The area is 303 square kilometres (117 sq mi), most of which is in Norfolk, with over 200 kilometres (120 mi) of navigable waterways. There are seven rivers and 63 broads, mostly less than 4 metres (13 ft) deep. Thirteen broads are generally open to navigation, with a further three having navigable channels. Some broads have navigation restrictions imposed on them in autumn and winter, although the legality of the restrictions is questionable.
Although the terms Norfolk Broads and Suffolk Broads are used to identify specific areas within the two counties respectively, the whole area is frequently referred to as the "Norfolk Broads".
The Broads has similar status to the national parks in England and Wales; the Broads Authority has powers and duties akin to the National Parks, but is also the third-largest inland navigation authority. Because of its navigation role the Broads Authority was established under its own legislation on 1 April 1989. The Broads Authority Act 2009, which was promoted through Parliament by the authority, is intended to improve public safety on the water.
