The Thames Barge Driving Race under oars' or "sweeps" and ride tidal river currents alone, up river. The event commemorates the skills of lightermen who moved freight this way along the Thames up until the 1930s and in a wider context it encourages ongoing interest in moving cargo via water and as a way to recruit younger people back into river trades.The teams are normally made up of employees of Thames Lighterage companies, Port of London Authority or are sponsored by local businesses. The best places to view the race are Tower Bridge, London Bridge and Westminster Bridge. During the 1970s Britain suffered a major
London Bridge cost of £4 million (£ in ), was met entirely by the Bridge House Estates charity. The current bridge was built in the same location as Rennie's bridge, with the previous bridge remaining in use while the first two girders were constructed upstream and downstream. Traffic was then transferred onto the two new girders, and the previous bridge demolished to allow the final two central girders to be added. In 1984, the British warship HMS "Jupiter" collided with London Bridge, causing significant damage to both the ship and the bridge. On Remembrance Day 2004, several bridges in London were furnished