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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 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]
A simple suspension bridge (also rope bridge, swing bridge (in New Zealand), suspended bridge, hanging bridge and catenary bridge) is a primitive type of bridge in which the deck of the bridge lies on two parallel load-bearing cables that are anchored at either end. They have no towers or piers.
Tilt bridge – the bridge deck, which is curved and pivoted at each end, is lifted at an angle; Swing bridge – the bridge deck rotates around a fixed point, usually at the centre, but may resemble a gate in its operation ; road or rail; Transporter bridge – a structure high above carries a suspended, ferry-like structure
Submersible bridge – also called a ducking bridge, the bridge deck is lowered into the water; Tilt bridge – the bridge deck, which is curved and pivoted at each end, is lifted at an angle; Swing bridge – the bridge deck rotates around a fixed point, usually at the centre, but may resemble a gate in its operation; road or rail
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
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The bridge (2003) The bridge consisted of four fixed spans, one swing span and a fifth swing span, and carried a double-track railway. [5] [note 1]Pier foundations for the bridge spans were of 7 ft (2.1 m) base diameter cast iron cylinders, which tapered to 5.5 ft (1.7 m) diameter at the high water level, each column was around 90 ft (27 m) long. [6]