Tower Bridge
Tower Bridge is a combined bascule and suspension bridge in London built in 1886–1894. The bridge crosses the River Thames close to the Tower of London and has become an iconic symbol of London. Tower Bridge is one of five London bridges now owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation. It is the only one of the Trust's bridges not to connect the City of London directly to the Southwark bank, as its northern landfall is in Tower Hamlets.
The bridge consists of two bridge towers tied together at the upper level by two horizontal walkways, designed to withstand the horizontal tension forces exerted by the suspended sections of the bridge on the landward sides of the towers. The vertical components of the forces in the suspended sections and the vertical reactions of the two walkways are carried by the two robust towers. The bascule pivots and operating machinery are housed in the base of each tower. The bridge's present colour scheme dates from 1977, when it was painted red, white and blue for Queen Elizabeth II's Silver Jubilee.
Fascinating facts - It takes 5 min to raise each half (bascule) of the bridge's central stretch.
- It Took 8 years to build (1886-1894).
- 432 construction workers worked on the bridge.
- 31.000.000 bricks were used, along with 2 million rivets and 22.000 litres of paint.
- Total cost of construction in pounds at the time it was £ 1.184.000.
- The average number of people, including motorists, cyclists and pedestrians, crossing the bridge every day is 40.000