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A tubular bridge is a bridge built as a rigid box girder section within which the traffic is carried. [26] Examples include the Britannia Bridge and the Conwy Railway Bridge in the United Kingdom. A skyway is a type of urban pedway consisting of an enclosed or covered footbridge between two buildings, designed to protect pedestrians from the ...
On April 6, 2001, the reconstructed wooden footbridge was opened, being the longest wooden bridge in Switzerland. The Kapellbrücke is a 204-metre-long (669 ft) bridge crossing the Reuss in the city of Lucerne in Switzerland. It is the oldest wooden covered bridge in Europe, and one of Switzerland's main tourist attractions. [citation needed]
The earliest bridges in North America were made of wood, which was abundant and cheaper than stone or masonry. Early wooden bridges were usually of the Towne lattice truss or Burr truss design. Some later bridges were McCallum trusses (a modification of the Burr truss). About 1840, iron rods were added to wooden bridges.
Wooden bridges could be a deck-only structure or a deck with a roof. Wooden bridges were often a single span, but could be of multiple spans. A trestle bridge is a bridge composed of a number of short spans. Each supporting frame is a bent. Timber and iron trestles (i.e. bridges) were extensively used in the 19th century. [28]
Wooden bridges could be burned to stop an attacker, or dismantled quickly. [7] [31] For example, according to Livy, during a battle against the Sabines the Romans set one of their wooden bridges on fire, driving the enemy back. [32] Other early wooden bridges used post and lintel construction.
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Wooden bridges in the United States by state or territory (32 C) Pages in category "Wooden bridges in the United States" The following 25 pages are in this category, out of 25 total.
This wooden bridge was destroyed forty years later in 1226 during the Albigensian Crusade when Louis VIII of France laid siege to Avignon. Beginning in 1234 the bridge was rebuilt with 22 stone arches. The stone bridge was about 900 m (980 yd) in length and only 4.9 m (16 ft 1 in) in width, including the parapets at the sides.