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
Kingston Bridge, London Kingston Bridge, London Kingston Bridge is a road bridge at Kingston upon Thames in south west London, England, carrying the A308 across the River Thames. It joins the town centre of Kingston in the Royal Borough of Kingston upon Thames, to Hampton Court Park, Bushy Park, and the village of Hampton Wick in the London Borough of Richmond upon Thames. In 2005 it was carrying approximately 50,000 vehicles per day with up to 2,000 vehicles per hour in each direction during peak times. Kingston Bridge is on the reach above Teddington Lock and close to and downstream of the mouth