This page lists some of the bridges (more than 90) that cross the River Severn in Britain, in order from source to mouth. The Severn has historically been a very important and busy river, and has been bridged throughout history. The bridges that stand today are often of great historical and/or engineering interest - for example the world's first bridge built from Iron crosses the Severn at Ironbridge Gorge. In addition many reaches of the Severn are prone to severe flooding, prompting the design of many unique bridges to cope with this.
The Severn (known as Afon Hafren in Wales) is the longest British river, at 354 kilometres/210 miles long; it rises at an altitude of 610 metres on Plynlimon near Llanidloes, Wales, and it passes through a number of British counties, with the county towns of Worcester, Gloucester and Shrewsbury located on its banks.
The two SevernBridges (opened in 1966 and 1996) link Wales with the southern counties of England and are among the most important in Britain.
The Severn is bridged at many places, and many of these bridges are notable in their own right, with several designed and built by the engineer Thomas Telford.