swing bridge

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swing bridge

1. a low bridge that can be rotated about a vertical axis, esp to permit the passage of ships
2. NZ a pedestrian bridge over a river, suspended by heavy wire cables
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

swing bridge

A bridge that opens by turning horizontally on a turntable supported on a pier. See also: Bridge
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

swing bridge

[′swiŋ ‚brij]
(civil engineering)
A movable bridge that pivots in a horizontal plane about a center pier.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.