Which river, 210 miles long, whose principal tributaries are the Wye, Avon and Teme, empties into the Bristol channel?
River Severn The river is usually considered to become the Severn Estuary after the Second Severn Crossing between Severn Beach, South Gloucestershire and Sudbrook, Monmouthshire. The river then discharges into the Bristol Channel which in turn discharges into the Celtic Sea and the wider Atlantic Ocean. The Severn's drainage basin area is , excluding the River Wye and Bristol Avon which flow into the Severn Estuary. The major tributaries to the Severn are the Vyrnwy, Clywedog, Teme, Avon and Stour. The name Severn is thought to derive from a Celtic original name *"sabrinnā", of uncertain meaning. That name then developed in different
River Avon, Bristol Bristol to Bath during the early years of the 13th century but construction of mills on the river forced its closure. The floodplain of the Avon, on which the city centre of Bath is built, has an altitude of about above sea level. The river, once an unnavigable series of braided streams broken up by swamps and ponds, has been managed by weirs into a single channel. Periodic flooding, which shortened the life of many buildings in the lowest part of the city, was normal until major flood control works were completed in the 1970s. The Bristol Avon Navigation, which