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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 ?
Drawbridge containers promise less overhead than traditional virtualization.
Chief operating officer at Drawbridge, Eric Rosenblum said that they are observing people's behaviours and connecting their profile to mobile devices.
I personally welcome you to "Building Drawbridges for Tomorrow," 76th Anniversary of the Virginia Association for Health, Physical Education, Recreation, and Dance Convention.
Drawbridge will use the funds to expand its portfolio of commercial real estate properties in the western United States.
You see they don't like change, they cling to the status quo and a single moment in time when their club is on the right side of the drawbridge.
To do that, you will have to raise or lower drawbridges and, if necessary, shoot arrows at the attackers.
I hear shouts from the other side of the moat but the drawbridge is stuck.
The crane was making its way up the drawbridge of Castell Coch, Tongwynlais, when the walkway gave way andtiltedupwards, catapulting the machine further inside the entrance of the Victorian landmark.
A team of historians, architectural experts and builders is constructing the castle with 24-feet-high towers, a drawbridge, moats and 6-foot-wide stone walls surrounding an inner yard.
For instance, his 1837 picture The Northern Drawbridge of the Citadel in Copenhagen concentrates on the red wooden structure that suspends the bridge over mirroring still water: ice-cold water, surely.
ANA MARIA MATUTE author of Paraiso inhabitado (2008) and other novels, in The Drawbridge (Autumn 2009)
The plaintive echoes of rivercraft are heard as they signal the drawbridge.