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A footbridge (also a pedestrian bridge, pedestrian overpass, or pedestrian overcrossing) is a bridge designed solely for pedestrians. [1] While the primary meaning for a bridge is a structure which links "two points at a height above the ground", a footbridge can also be a lower structure, such as a boardwalk , that enables pedestrians to cross ...
The bridge may be stiffened by the addition of cables that do not bear the primary structural or live loads and so may be relatively light. These also add stability in wind. An example is the 220-meter-long (720 ft) bridge across the river Drac at Lac de Monteynard-Avignonet: this bridge has stabilizing cables below and to the side of the deck.
A bridge can be categorized by what it is designed to carry, such as trains, pedestrian or road traffic (road bridge), a pipeline (Pipe bridge) or waterway for water transport or barge traffic. An aqueduct is a bridge that carries water, resembling a viaduct, which is a bridge that connects points of equal height.
The Class 60 bridge consisted of a more robust steel girder and grid deck supported by inflatable rubber pontoons. All three pontoon bridge types were cumbersome to transport and deploy, and slow to assemble, encouraging the development of an easier to transport, deploy and assemble floating bridge.
The double-decker two-lane living root bridge of Padu Village (2015) [19] At over 50 metres (160 ft) in length, the longest known example of a living root bridge [24] is near the small Khasi town of Pynursla in India, which can be accessed from either the village of Mawkyrnot or Rangthylliang. This bridge is known as Rangthylliang bridge. [17]
A cantilever bridge is a bridge built using structures that project horizontally into space, supported on only one end (called cantilevers).For small footbridges, the cantilevers may be simple beams; however, large cantilever bridges designed to handle road or rail traffic use trusses built from structural steel, or box girders built from prestressed concrete.
A stunning new bridge has been installed to provide safer access to Diamond Creek Falls, a 120-foot cascade southeast of Oakridge.
The Oslo Leonardo Bridge Project opened in October 2001. [16] The project hopes to apply the design to build practical footbridges around the world using local materials and local artisans as a global public art project. [17] Future plans, announced in 2012, include a bridge over the Golden Horn in Istanbul, as Leonardo had proposed. [18]