River Thet

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Thet
River Thet at Brettenham - geograph.org.uk - 338080.jpg
River Thet at Brettenham
Norfolk UK relief location map.jpg
Red pog.svg
Location of the river mouth within Norfolk
EtymologyFrom Thetford, in turn from 'Theodford' which is Anglo-Saxon for 'Peoples Ford'
Location
Country England
Region Norfolk
Physical characteristics
Source 
  location Deopham Green
  coordinates 52°33′03″N1°00′07″E / 52.5507°N 1.0019°E / 52.5507; 1.0019
  elevation53 m (174 ft)
Mouth River Little Ouse
  location
Thetford
  coordinates
52°24′41″N0°44′55″E / 52.4113°N 0.7485°E / 52.4113; 0.7485 Coordinates: 52°24′41″N0°44′55″E / 52.4113°N 0.7485°E / 52.4113; 0.7485
  elevation
10 m (33 ft)
Length34.3 km (21.3 mi)
Basin size≈225km2
Basin features
River system River Little Ouse
Tributaries 
  leftWittle

Stream from Middle Harling Fen

Stream from Old Buckenham Fen
  rightStream from Roudham village Stream from Hockham

The River Thet is a river in Norfolk, England and is a tributary of the River Little Ouse.It rises in Breckland with sources in Deopham Green and Rockland All Saints [1] and joins the Little Ouse in Thetford after flowing approximately southwest.

[2] The primary sources for its various small tributaries include the calcareous valley fen SSSIs Swangey Fen, [3] Old Buckenham Fen, [4] Middle Harling Fen [5] and Kenninghall and Banham Fens with Quidenham Mere. [6] Carr woodland is also a prevalent habitat throughout the floodplain where open wetlands have been invaded by scrub. The underlying geology is clay/loam over chalk for the easternmost parts of the river's course and sand/gravel over chalk for the majority of the river.

Etymology, course and notable settlements nearby

The name actually comes from Thetford [7] rather than the other way around as Thetford was such an important settlement during the Anglo Saxon period from which the name is derived. The other most notable settlement along the Thet is East Harling [8] where the river has been forded for many centuries. [9] Now a brick and concrete bridge carries the B1111 road over the river. Beneath the bridge is a weir and a widened section of river with a gravel bed (elsewhere the riverbed is predominantly mud). Downstream the river passes over another weir at Bridgham where another bridge crosses it and then through the Shadwell Estate. Here it splits into two channels, reconverges and passes a large artificial lake. [10] When the river reaches Thetford it curves south then west again, meeting the Little Ouse just west of Butten Island in the centre of the town.

In the upper reaches of the Thet, there are a series of lakes including flooded gravel pits. These are situated at Snetterton [11] in a linear pattern along the floodplain and also near Attleborough. [12] All of these lakes are on private land and used for fishing. [13]

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References

  1. TM003940
  2. TL870828
  3. https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/1000134.pdf [ bare URL PDF ]
  4. https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/1003600.pdf [ bare URL PDF ]
  5. https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/1000696.pdf [ bare URL PDF ]
  6. https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/1000583.pdf [ bare URL PDF ]
  7. Trudgill, Peter (4 August 2016). Dialect Matters: Respecting Vernacular Language. ISBN   9781316552896.
  8. https://gridreferencefinder.com?gr=TL9891486667%7CPoint_s_B%7C1&t=Point%20B&v=r
  9. "Norfolk Parishes". 8 February 2017.
  10. "SHADWELL PARK, Brettenham - 1001019 | Historic England".
  11. https://gridreferencefinder.com?gr=TL9926691699%7CPoint_s_C%7C1&t=Point%20C&v=r
  12. https://gridreferencefinder.com?gr=TM0049193856%7CPoint_s_D%7C1&t=Point%20D&v=r
  13. https://snetterton-fishing-lakes.business.site/