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Madison Street Bridge, a bascule bridge over the Chicago River in Chicago, IL The Rode Brug (Red Bridge) across the Vecht river in Utrecht, Netherlands The Marine Parkway–Gil Hodges Memorial Bridge in New York City. A moveable bridge, or movable bridge, is a bridge that moves to allow passage for boats [1] or barges. [2]
The movable span is 310 feet (94 m) long [23] [24] and 92 feet (28 m) wide. [23] The side spans between the movable span and the approach viaducts are each 195 feet (59 m) long. The total length of the bridge is 700 feet (213 m). [24] The towers are 210 feet (64 m) above mean high water.
The moving bridge had two bascule leaves, each 48 feet (15 m) long that were connected by a 69 feet (21 m) long deck-girder approach, for a total overall length of 372 feet (113 m). [6] The girders were 40 feet (12 m) in width; which were wider than the 37.5 feet (11.4 m) bascules. [6]
A road sign indicating a bascule bridge ahead. There are three types of bascule bridge [1] and the counterweights to the span may be located above or below the bridge deck. The fixed-trunnion (sometimes a "Chicago" bascule) rotates around a large axle that raises the span(s).
Some bridges are measured from the beginning of the entrance ramp to the end of the exit ramp. Some are measured from shoreline to shoreline. Yet others use the length of the total construction involved in building the bridge. Since there is no standard, no ranking of a bridge should be assumed because of its position in the list.
Per the United States Bureau of Reclamation, in 1995, along with other bridges such as the Brooklyn Bridge and Golden Gate Bridge, the bridge was listed by the American Consulting Engineers Council as one of the top twelve bridge designs in the United States, [3] and is the "longest two-lane, single-span, steel-arch bridge in North America". [3]
It's called Peak Walk at the Glacier 3,000 Resort in the Swiss Alps, and it's the world's first suspension bridge to ever 31 inches wide. 9,800 feet up. That's a bridge
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.