River Severn slightly upstream of the Bristol Avon on the opposite bank. The River Usk flows into the Severn Estuary just south of Newport. The Rad Brook is a small river in Shropshire, England. It flows through Shrewsbury and enters the River Severn there. Below is a list of major towns and cities that the Severn flows through (in order running downstream): Through Powys: Through Shropshire: Through Worcestershire: Through Gloucestershire: 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. There also is the
River Gwaun River Gwaun The River Gwaun (Welsh: "Afon Gwaun", ""Gwaun"" meaning 'marsh, moor') is a river in Pembrokeshire, West Wales, which flows west to the sea at Fishguard (Welsh: "Abergwaun" - 'mouth of the Gwaun'). The Gwaun rises in the Pembrokeshire Coast National Park on the northern slopes of "Foel Eryr" in the Preseli Hills, to the east of Pontfaen hamlet. The river is a slowly meandering stream passing through marshy, wet woodland with alder trees, water meadows and flood plains. Its river valley is deep and secluded through the Gwaun Valley, past the hamlets of Cwm Gwaun and Llanychaer to