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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.
The hydraulic Swing Bridge was designed and paid for by Armstrong, with work beginning in 1873. It was first used for road traffic on 15 June 1876 and opened for river traffic on 17 July 1876. [ 4 ] At the time of construction it was the largest swing bridge ever built.
St. Francis River Bridge (Madison, Arkansas) St. Joseph Swing Bridge; St. Paul Union Pacific Rail Bridge; Sakonnet River rail bridge; Sarto Bridge; Saugatuck River Bridge; Schuylkill Arsenal Railroad Bridge; Snow-Reed Swing Bridge; Spokane Street Bridge; Spuyten Duyvil Bridge; Swing Bridge at New Bridge Landing
The bridge is composed of three spans crossing the Connecticut River between Haddam, Connecticut and East Haddam, Connecticut. [3] The bridge carries Route 82, with an average daily traffic of 11,600. [4] At the time of its construction, it was reputed to be the longest swing bridge of its kind in the world. [5]
Since the restoration about 2,500 tourists have visited the bridge each year. [7] The Sale Swing Bridge was used as a set in 2007 for the filming of the 2008 film The Tender Hook, starring Hugo Weaving and Rose Byrne. [8] In April 2017 vandals lodged a block of wood in the gear mechanism, causing an axle to bend and the bottom roller beam to crack.
The bridge is the largest double-swing-span bridge in the United States, and second largest in the world. [ 1 ] [ 2 ] The toll bridge was named for George P. Coleman , who from 1913 to 1922 was the head of the Virginia Department of Highways and Transportation, predecessor to the Virginia Department of Transportation (VDOT).
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The bridge carries Highway 6 (formerly Highway 68) across a narrow channel separating Manitoulin Island from the much smaller Goat Island, forming the only land access.It consists of two 21 m (70 ft) deck plate girder approaches on the north end (Goat Island) and a single 18 m (60 ft) deck plate girder approach on the south end (Manitoulin Island), with a 112 m (368 ft) through swing bridge span.