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This list of cantilever bridges ranks the world's cantilever bridges by the length of their main span. A cantilever bridge is a bridge built using cantilevers: structures that project horizontally into space, supported on only one end.
The three great four-tower cantilever structures are 340 ft (104 m) tall, each 70 ft (21 m) diameter foot resting on a separate foundation. The southern group of foundations had to be constructed as caissons under compressed air, to a depth of 90 ft (27 m).
Bridge of the Gods (modern structure) Carquinez Bridge; Champlain Bridge; Commodore Barry Bridge - 1,644 feet (501 m) Conde McCullough Memorial Bridge; Crescent City Connection - 1,575 feet (480 m) El Ferdan Railway Bridge; Forth Bridge - 520 metres (1,710 ft) cantilever span; George Washington Memorial Bridge; Gramercy Bridge
A cantilever in a traditionally timber framed building is called a jetty or forebay. In the southern United States, a historic barn type is the cantilever barn of log construction. Temporary cantilevers are often used in construction. The partially constructed structure creates a cantilever, but the completed structure does not act as a cantilever.
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.
The effect is a structure of exceptional lightness that satisfies all three of Menn's main criteria for design: efficiency, economy, and aesthetics. [5] It is the longest viaduct of the A1 highway and the world's first single-cell box girder bridge built with the cantilever method, a pioneer work in prestressed concrete design and construction. [6]
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The Forth Bridge [2] is a cantilever railway bridge across the Firth of Forth in the east of Scotland, 9 miles (14 kilometres) west of central Edinburgh.Completed in 1890, it is considered a symbol of Scotland (having been voted Scotland's greatest man-made wonder in 2016), and is a UNESCO World Heritage Site. [3]