Tower Bridge 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. Before its restoration in the 2010s, the bridge's colour scheme dated from 1977, when
London Bridge Is Falling Down to replace the bridge with a new construction. New London Bridge was opened in 1831 and survived until it was replaced in 1972. It was then transported and reconstructed in Lake Havasu City, Arizona. Several attempts have been made to identify the 'fair lady', 'lady gay', or lady 'lee/lea' of the rhyme. They include: Since the late 19th century the rhyme has been seen as one of the most popular and well known in the English-speaking world. It has also been referenced in both literature and popular culture. London Bridge Is Falling Down "London Bridge Is Falling Down" (also known