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Moveable bridge - Wikipedia, the free encyclopedia
A moveable bridge is a bridge that moves to allow passage for (usually) boats or barges. By making the bridge moveable it may be made low, which avoids the expense of high piers and long approaches,...
en.wikipedia.org/wiki/Moveable_bridge |
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Bascule bridge - Wikipedia, the free encyclopedia
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Drawbridge - Wikipedia, the free encyclopedia
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Easily the most popular type of movable bridge in existence today, bascule bridges are designed to pivot on a fixed axis. Usually this type of bridge consists of movable 'leaves' fixed to each end of the channel.
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The communities along Connecticut's coast and navigable rivers have relied on movable bridges since Colonial times. Wherever highways and waterways intersected, some method of raising the bridge was needed to allow passage of tall-masted vessels.
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Movable bridges are usually built across rivers to allow passage of shipping beneath. They can move up and down, rotate, float and can even move cars in lifts hundreds of feet above ground. The movable bridges are separated into bascule bridge, swing span bridge and vertical lift bridge.
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Some of us cross these bridges nearly every day and never stop to think about them. Yet Chicago has more movable bridges than any other city in the world, and the city is recognized as an international innovator in the engineering ... The first bridge built across the Chicago River was completed in 1832 at Kinzie Street.
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We've moved! Please visit us at amovablebridge.wordpress.com. Made on a Mac.
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AllRefer.com reference and encyclopedia resource provides complete information on bridge, structure : Modern Bridge Designs : Movable Bridges, Technology: Terms And Concepts. Includes related research links. ... The lifting bridge, or lift bridge, consists of a rigid frame carrying the road and resting abutments,
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"It's probably the most high-tech movable bridge in the U.S. at this point, as far as the control system and the machinery that moves the bridge," said Jim Phillips, vice president of E.C. Driver, which engineered the bridge.
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