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History
Swing Bridge, River Tyne
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The Swing Bridge is a swing bridge over the River Tyne, England, connecting Newcastle upon Tyne and Gateshead, and lying between the Tyne Bridge and the High Level Bridge. It is a Grade II* listed structure.
The High Level Bridge towers above the Swing Bridge across the River Tyne; photograph facing Newcastle
The High Level Bridge towers above the Swing Bridge across the River Tyne; photograph facing Newcastle
The machine room, showing one of Armstrong's original three-cylinder oscillating hydraulic motors
The machine room, showing one of Armstrong's original three-cylinder oscillating hydraulic motors
Swing bridge
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A swing 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 can then pivot horizontally as shown in the animated illustration to the right.
I Street swing Bridge span turned to allow a boat to pass Sacramento California
I Street swing Bridge span turned to allow a boat to pass Sacramento California
BNSF Railroad Bridge 9.6 across the Columbia River in Portland, Oregon, showing the swing-span section turning.
BNSF Railroad Bridge 9.6 across the Columbia River in Portland, Oregon, showing the swing-span section turning.
An example of how small swing bridges like this one may be pivoted only at one end, but that does require substantial underground structure to support
An example of how small swing bridges like this one may be pivoted only at one end, but that does require substantial underground structure to support the pivot. Victoria & Alfred Waterfront, Cape Town.
El Ferdan Railway Bridge in Egypt; the longest swing bridge in the world, runs from the east of the Suez Canal to the west into Sinai. It is left open
El Ferdan Railway Bridge in Egypt; the longest swing bridge in the world, runs from the east of the Suez Canal to the west into Sinai. It is left open most of the time to allow sailing ships to pass in the canal, only closing during the passage of trains.