River Severn

river in the United Kingdom

The River Severn (Welsh: Afon Hafren, Latin: Sabrina) is the longest river in Great Britain. It is about 354 kilometres (220 miles) long.[4][5] It starts in the Cambrian Mountains of centre Wales. It then flows through Shropshire, Worcestershire and Gloucestershire. The county towns of Shrewsbury, Worcester, and Gloucester are on its banks. The Severn is the greatest river in terms of water flow in England and Wales.

River Severn
Welsh: Afon Hafren
The river seen from Shrewsbury Castle
Tributaries (light blue) and major settlements on and near the Severn (bold blue)
CountryEngland and Wales
RegionMid Wales, West Midlands, South West
CountiesPowys, Shropshire, Worcestershire, Gloucestershire
CitiesShrewsbury, Worcester, Gloucester, Bristol
Physical characteristics
 - locationPlynlimon, Powys, Wales
 - coordinates52°29′36″N 3°44′05″W / 52.493464°N 3.734597°W / 52.493464; -3.734597
 - elevation610 m (2,000 ft)
MouthSevern Estuary
 - locationBristol Channel, United Kingdom
 - elevation0 m (0 ft)
Length354 km (220 mi)
Basin size11,420 km2 (4,410 sq mi)
 - locationBewdley, Worcs. SO 7815 7622[1]
 - average61.17 m3/s (2,160 cu ft/s)[1]
 - maximum533.48 m3/s (18,840 cu ft/s)max recorded on 1947-03-21[2]
 - locationApperley, Glos.
 - average107 m3/s (3,800 cu ft/s)
 - locationMontford, Shrops.[3]
 - average43.46 m3/s (1,535 cu ft/s)
Basin features
 - leftVyrnwy, Tern, Stour, Warwickshire Avon, Bristol Avon
 - rightTeme, Leadon, Wye

The river is usually considered to become the Severn Estuary after the Second Severn Crossing. The river then discharges into the Bristol Channel, which discharges into the Atlantic Ocean. The Severn's drainage basin area is 0 k[convert: unknown unit], excluding the River Wye and the Bristol Avon which flow into the Severn Estuary.


  1. 1.0 1.1 "National River Flow Archive – 54001 Severn @ Bewdley". Archived from the original on 23 October 2007. Retrieved 24 January 2008.
  2. "HiFlows-UK". Archived from the original on 9 January 2007. Retrieved 24 January 2008.
  3. "National River Flow Archive – 54001 Severn @ Montford". Archived from the original on 23 October 2007. Retrieved 24 January 2008.
  4. "Frankwell Flood Alleviation Scheme, Shrewsbury" (PDF). UK Environment Agency. Retrieved 13 March 2010.
  5. "The River Severn Facts". BBC. Retrieved 28 December 2006.

Other websites


  Media related to River Severn at Wikimedia Commons