Bridge four-lane highway on the upper level and a pair of railway tracks at the lower level. Tower Bridge in London is different example of a double-decked bridge, with the central section consisting of a low level bascule span and a high level footbridge. A viaduct is made up of multiple bridges connected into one longer structure. The longest and some of the highest bridges are viaducts, such as the Lake Pontchartrain Causeway and Millau Viaduct. A three-way bridge has three separate spans which meet near the center of the bridge. The bridge appears as a "T" or "Y" when viewed
London Bridge City Pier Canary Wharf the O and Woolwich Arsenal Pier. London Bridge City Pier London Bridge City Pier (also known as London Bridge Pier and City Pier) is situated on the south bank of the River Thames in London, UK, close to London Bridge. It serves as the main pier for the City of London and City Hall, headquarters of the London Assembly. The pier is also close to Hay's Galleria, HMS Belfast and Borough Market and the Shard. London Bridge City Pier is served by the Thames commuter catamaran service run by Thames Clippers. Boats run regularly from Embankment and the