The River Nadder is a tributary of the River Avon, flowing in south Wiltshire, England.
The River Nadder is a tributary of the River Avon, flowing in south Wiltshire, England.
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 [1] site of special scientific interest (SSSI). [2] 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. [3] [4] [5] Near Quidhampton, the Wylye joins from the north. [6] After passing Harnham, the Nadder joins the Avon near Salisbury Cathedral. [7]
Including its headwaters, the river's length is about 55 km (34 mi). [8] [9] [10] [11]
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. [12]
Water quality of the River Nadder in 2019:
| Section | Ecological Status | Chemical Status | Overall Status | Length | Catchment | Channel |
|---|---|---|---|---|---|---|
| Nadder (Headwaters) [13] | Poor | Fail | Poor | 6.698 km (4.162 mi) | 34.713 km2 (13.403 sq mi) | |
| Nadder (Upper) [14] | Moderate | Fail | Moderate | 5.282 km (3.282 mi) | 10.934 km2 (4.222 sq mi) | |
| Nadder (Middle [15] | Moderate | Fail | Moderate | 30.807 km (19.143 mi) | 72.107 km2 (27.841 sq mi) | |
| Nadder (Lower) [16] | Good | Fail | Moderate | 11.951 km (7.426 mi) | 15.021 km2 (5.800 sq mi) |
The Kennet is a tributary of the River Thames in Southern England. Most of the river is straddled by the North Wessex Downs AONB. The lower reaches have been made navigable as the Kennet Navigation, which – together with the Avon Navigation, the Kennet and Avon Canal and the Thames – links the cities of Bristol and London.
The River Stour is a 61 mi (98 km) river which flows through Wiltshire and Dorset in southern England, and drains into the English Channel. The catchment area for the river and its tributaries is listed as 480 square miles (1,240 km2).
The River Itchen in Hampshire, England, rises to the south of New Alresford and flows 26 miles (42 km) to meet Southampton Water below the Itchen Bridge. The Itchen Navigation was constructed in the late 17th and early 18th centuries to enable barges to reach Winchester from Southampton Docks, but ceased to operate in the mid-19th century and is largely abandoned today.
Wiltshire is a historic county located in the South West England region. Wiltshire is landlocked and is in the east of the region.
Salisbury is a constituency represented in the House of Commons of the UK Parliament since 2010 by John Glen of the Conservative Party.
Wilton is a town and civil parish in Wiltshire, England. Lying about 3 miles (5 km) west of the city of Salisbury, and until 1889 the county town of Wiltshire, it has a rich heritage dating back to the Anglo-Saxons.
The River Wylye is a chalk stream in the south of England, with clear water flowing over gravel. It is popular with anglers for fly fishing. A half-mile stretch of the river and three lakes in Warminster are a local nature reserve.
The River Dun is a tributary of the River Kennet, flowing through Wiltshire and Berkshire in England. Its main source is in the parish of Great Bedwyn, Wiltshire and it flows 16 kilometres (10 mi) in a northeasterly direction into Berkshire. It discharges into the Kennet at Hungerford, which has a smaller average flow and width upstream of that point.
Lower Coombe and Ferne Brook Meadows is an 11.34 hectare biological Site of Special Scientific Interest in Wiltshire, England which sits on the Upper Greensand and Gault Clay. The site is home to rare fen meadow and neutral grassland communities in an unimproved grassland. Species such as Triglochin palustris, Caltha palustris and Oenanthe pimpinelloides can be found at the location. Three streams, which form headwaters of the River Nadder flow through the site. It was notified in 2002.
Midford Brook is a small river in Somerset, England.
Harnham is a suburb of the city of Salisbury in Wiltshire, England, centred about 0.6 miles (1 km) south of Salisbury Cathedral and across the River Avon. Harnham is split into the areas of West Harnham and East Harnham.
The Bybrook, also known as the By Brook, is a small river in England. It is a tributary of the Bristol Avon and is some 12 miles (19 km) long. Its sources are the Burton Brook and the Broadmead Brook, which rise in South Gloucestershire at Tormarton and Cold Ashton respectively, and join just north of Castle Combe in Wiltshire. The river has a mean flow rate of 57.25 cubic feet per second (1.621 m3/s) as recorded at Middlehill near Box. A variety of flora and fauna is supported by the river including the endangered white-clawed crayfish. Twenty watermill sites have been identified on the river but none now remain in use.
Elections to Wiltshire County Council were held on 7 June 2001. The whole council was up for election and the Conservatives held onto control.
The River Till rises near Tilshead on Salisbury Plain in the English county of Wiltshire. It flows for about 14 km south and south-east, through Orcheston, Maddington, Shrewton, Winterbourne Stoke, Berwick St James and Stapleford, to join the River Wylye.
The River Sem is a natural waterway that flows through the ceremonial county of Wiltshire in England. It flows approximately 4+1⁄4 miles (7 km) from its source near East Knoyle to join the River Nadder near Wardour.
The Vale of Wardour encompasses the valley of the River Nadder in the county of Wiltshire, England.
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