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see bridgebridge,
structure built over water or any obstacle or depression to allow the passage of pedestrians or vehicles. See also viaduct. Early Bridges

In ancient times and among primitive peoples a log was thrown across a stream, or two vines or woven fibrous ropes (the
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At the entrance to fortifications, a bridge over the moat or ditch, hinged and provided with a raising and lowering mechanism so as to hinder or permit passage.
See also: Bridge



a bridge with a movable span to permit the passage of ships. Drawbridges are usually built across rivers traveled by large ships when conditions make it technically and economically inadvisable to construct a bridge on high piers and with long approaches. The movable span of a drawbridge can be of the vertical-lift, swing, bascule, balance-beam, or rolling-lift type; the choice of type depends on local conditions. Construction of a drawbridge span requires either massive piers or towers to house the mechanisms and engines required for moving the span. Electric and hydraulic drives are the most common, and drawbridges are often equipped with backup drives from internal-combustion engines. The movable span generally has light-duty structural members, with trusses or beams of steel or lightweight alloys.


Kryzhanovskii, V. I. Razvodnye mosty. Moscow, 1967.


(civil engineering)
Any bridge that can be raised, lowered, or drawn aside to provide clear passage for ships.


At the entrance of fortifications, a bridge over the moat or ditch, hinged and provided with a raising and lowering mechanism so as to hinder or permit passage.


a bridge that may be raised to prevent access or to enable vessels to pass
References in periodicals archive ?
All guests stay at the Drawbridge Inn, a three-star hotel that boasts three pools, tennis courts and health & fitness facilities.
NEW YORK -- Fortress Investment Group's (NYSE: FIG) Drawbridge Special Opportunities Fund was recognized as "Best Distressed Hedge Fund" at the Hedge Funds Review First Annual Americas Awards.
Drawbridge and his wife, Donna of Campton Hill, IL; five grandchildren, Mary Muszynski, Anna Muszynski, Adam Muszynski, Lauren Drawbridge and Lisa Lasiter; many nephews, nieces, grand nieces and grand nephews.
Is it not time for the drawbridge to be lowered, accept that things are not working and make a change in ruler?
Caldicot Castle is lowering its drawbridge to the public until Tuesday, October 31.
The danger is if they decide to pull up the drawbridge.
Developer Drawbridge Securities (Ditton) is behind the scheme, called Innovis, which will provide 1m sq ft of industrial and warehouse space on the banks of the River Mersey.
Let's pull up the drawbridge SIR - Represented by Russell Brand, an honest luminary but with rather inconclusive ideas, it seems a great chunk of the population is groping in the dark for a new economic and political direction.
Officials wrote to the 29-year-old footballer and Victoria, 30, in December after hearing about the wooden structure, complete with mock tower, drawbridge, slides and rope swings, at "Beckingham Palace" in Sawbridgeworth, Herts.
People who are here and have it, they want to pull up the drawbridge and not let anybody else in.
Where, instead of four walls, you could look at an ever-changing tableau of the Napa River's grassy banks, a drawbridge, maybe even an osprey.