London calling for bridge maintenance

摘要

Tower Bridge is one of the most well known tourist sites in London, UK. But like other bridges it requires up to date technology to keep it running successfully. A new dewatering pump transfered rainwater and ground water from the River Thames to the surface, keeping the towers free of water and ensuring the future of this historic structure. Tower Bridge is a combined bascule and suspension bridge in London, UK, over the River Thames It is close to the Tower of London, which gives it its name. The bridge consists of two towers which are tied together at the upper level by means of two horizontal walkways. It is 244 m (800 ft) in length with two towers each 65 m (213 ft) high, built on piers. The central span of 61 m (200 ft) between the. towers is split into two equal bascules or leaves, which can be raised to an angle of 83° to allow river traffic to pass.