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A swing bridge (or swing span bridge) is a movable bridge that can be rotated horizontally around a vertical axis. It has as its primary structural support a vertical locating pin and support ring, usually at or near to its center of gravity, about which the swing span (turning span) can then pivot horizontally as shown in the animated illustration to the right.
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.
The footpath on the north side of the bridge. It was 212 feet (65 m) long in total, with a clear span of 120 feet (37 m), and a roadway width of 24 feet (7.3 m). [1] The bridge was constructed from wrought iron, and weighed 620 tonnes (610 long tons; 680 short tons), including 60 tonnes (59 long tons; 66 short tons) of timber decking and 240 tonnes (240 long tons; 260 short tons) of kentledge ...
Scale Lane Footbridge is an apostrophe-shaped pedestrian swing bridge in Hull, England. The bridge has a rotating mechanism, allowing it to swing open horizontally, letting vessels pass beneath on the River Hull. It was the first bridge in the world to allow pedestrians to remain on the bridge while it is in motion.
Articles directly in this category do not have a swing bridge country sub-category in which to place them. Subcategories This category has the following 7 subcategories, out of 7 total.
The bridge is composed of three spans crossing the Connecticut River between Haddam, Connecticut and East Haddam, Connecticut. [3] The bridge carries Route 82, with an average daily traffic of 11,600. [4] At the time of its construction, it was reputed to be the longest swing bridge of its kind in the world. [5]
The bridge is 83.5 m long and 8 m high bowstring truss balanced swing bridge, based on an 1893 design by John Arthur Saner. [ 1 ] [ 2 ] It has two slightly skew spans of 25 m each, with the twin riveted steel trusses supported on a mass concrete pontoon chamber.
A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck. The vertical lift offers several benefits over other movable bridges such as the bascule and swing-span bridges. Generally speaking, they cost less to build for longer moveable spans. [1]