London bridges across the river Thames: 2 London bridge

London bridge

historically, several London Bridges have spanned the river Thames between the City of London and Southwark, the current crossing, which opened to traffic in 1973, is a box girder bridge built from concrete and steel, this replaced a 19th-century stone-arched bridge, which in turn superseded a 600-year-old medieval structure which was preceded by a succession of timber bridges, the first built by the Roman founders of London

 the current bridge stands at the western end of the Pool of London but is positioned 30 metres upstream from previous alignments - the traditional ends of the medieval bridge were marked by St Magnus-the-Martyr on the northern bank and Southwark Cathedral on the southern shore