River Nadder

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River in south Wiltshire, England

title: "River Nadder" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["rivers-of-wiltshire", "stour-catchment"] description: "River in south Wiltshire, England" topic_path: "general/rivers-of-wiltshire" source: "https://en.wikipedia.org/wiki/River_Nadder" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary River in south Wiltshire, England ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/8/87/River_Nadder_at_Teffont_Mill.jpg" caption="The Nadder at [[Teffont]] Mill"] ::

The River Nadder is a tributary of the River Avon, flowing in south Wiltshire, England.

Etymology

The name is derived from a Celtic word *nootr, "flowing water", from the same root as the Latin natare, "to swim". (Hoare's account of Wiltshire gives a folk etymology which is still popular, deriving it from adder.)

Course

The river flows north from Ludwell to West End where it is joined by the Ferne Brook, close to the Lower Coombe and Ferne Brook Meadows site of special scientific interest (SSSI). At Wardour it is joined by the River Sem. The river then flows east through Tisbury, where it is joined by the Fonthill Brook, and then onto Barford St Martin and Burcombe before reaching Wilton. Near Quidhampton, the Wylye joins from the north. After passing Harnham, the Nadder joins the Avon near Salisbury Cathedral.

Including its headwaters, the river's length is about 55 km.

Water quality

The Environment Agency measures the water quality of the river systems in England. Each is given an overall ecological status, which may be one of five levels: high, good, moderate, poor and bad. There are several components that are used to determine this, including biological status, which looks at the quantity and varieties of invertebrates, angiosperms and fish. Chemical status, which compares the concentrations of various chemicals against known safe concentrations, is rated good or fail.

Water quality of the River Nadder in 2019: ::data[format=table] | Section | Ecological Status | Chemical Status | Overall Status | Length | Catchment | Channel | |---|---|---|---|---|---|---| | | | | | 6.698 km | 34.713 km2 | | | | | | | 5.282 km | 10.934 km2 | | | | | | | 30.807 km | 72.107 km2 | | | | | | | 11.951 km | 15.021 km2 | | ::

Image gallery

Image:Palladian_bridge_Wilton_House.jpg|Flowing under the Palladian Bridge at Wilton House Image:River_Nadder_Salisbury_Cathedral.jpg|Salisbury Cathedral seen from the banks of the Nadder Image:River_Nadder_Harnham_Mill.jpg|The watermill at Harnham is near where the Nadder meets the Avon Image:Reed beds - River Nadder at Harnham.jpg|Reed beds along the banks of the Nadder at Harnham

References

References

  1. The place-names of Wiltshire. English Place-Name Society volume XVI. J.E.B Gover, Allen Mawer, and F.M. Stenton. Cambridge University Press. 1939, reprinted 1970. ISBN 0 521 04909 1. Page 9.
  2. (25 January 2002). "Lower Coombe and Ferne Brook Meadows".
  3. "Lower Coombe and Ferne Brook Meadows".
  4. "View: SU03 (includes: Wilton) - Ordnance Survey 1:25,000 maps of Great Britain, 1937-1961". National Library of Scotland.
  5. (2006). "Development Brief, Hindon Lane, Tisbury".
  6. Wiltshire Archaeological and Natural History Society. "Wiltshire archaeological and natural history magazine". Devizes : Wiltshire Archaeological and Natural History Society.
  7. "Wylye (lower)".
  8. "View: SU12 - Ordnance Survey 1:25,000 maps of Great Britain, 1937-1961". National Library of Scotland.
  9. "Nadder (headwaters)".
  10. "Nadder (upper)".
  11. "Nadder (middle)".
  12. "Nadder (lower)".
  13. (17 February 2016}} [[File:Open Government Licence logo.svg). "Glossary (see Biological quality element; Chemical status; and Ecological status)". Environment Agency.

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