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transbordeur/transporter bridges in
France and the world 1:
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related pages: transbordeur/transporter bridges in France and the world 2: focus on Portugalete,
Chicago, Rochefort-Martrou |
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francenew : Germans
in France - St. Quentin cathedral Germans
in France
Gustave
Eiffel’s first work: the Eiffel passerelle, Bordeaux
a
dream unfulfilled - the transporter bridge [pont transbordeur],
Bordeaux a
fifth bridge coming to Bordeaux: pont Chaban-Delmas, a new
vertical lift bridge the
6th bridge at Rouen: Pont Gustave Flaubert, Ile
de France, Paris: in the context of Abelard and of French
cathedrals France’s western isles: Ile de Ré France’s western iles: Ile d’Oleron
on first arriving in France - driving
Marianne - a French national symbol, with French definitive stamps the calendar of the French Revolution
Pic
du Midi - observing stars clearly, A64 Carcassonne,
A61: world heritage fortified city
the French umbrella & Aurillac the
Citroën 2CV:
the
forest as seen by francois mauriac, and today
mardi gras! carnival in Basque country what a hair cut! m & french pop/rock country life in France: the poultry fair
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A transbordeur bridge, or transporter bridge, is also known as a suspended car bridge, or a ferry bridge, or an aerial transfer bridge, or an aerial ferry; the French term is un pont à transbordeur. Such a bridge has two tall metal pylons with a horizontal travelway fixed high above the river. A gondola (or nacelle, or platform) is suspended from a shuttle, usually powered by electricity, that runs along the travelway. The gondola provides transport across the river, while the bridge itself still allows large ship traffic, such as sailing ships, to pass up and down the river. I am aware of at least twenty-two transbordeur bridges having been built around the world, seven being in France [Bordeaux, Brest, Marseilles, Nantes, Rochefort, Rouen, and a minature one at Montceau-les-Mines] and five in the UK. There can be some degree of confusion over the label (name) for such bridges. The French name is pont à transbordeur, these bridges frequently regarded as having been invented by a Frenchman. Then there is the Anglo-Saxon name, transporter bridge, with its affectionate diminutive, tranny; and a mongrel hybrid of the French and English names, a transbordeur bridge. There is also another variation, the transponder bridge, and I have even seen the label transporting bridge. abelard.org tends to use the words transporter and transbordeur interchangeably, according to mood. This article is not going to list every last known transbordeur bridge, whether still existing or not. This article will describe their origin and history, as well as some of the previous but interesting examples. A second article focuses on particular transbordeurs at Portugalete, Chicago and Rochefort-Martrou.
Transbordeur bridges have their origin in the need to cross rivers used as maritime highways by sea-going sailing ships, particularly in port towns where providing the long approach ramp required for a very high road deck was impractical. The transbordeur bridge provided an elegant and efficient solution to this problem. the master of transbordeur bridges - ferdinand arnodinThe transbordeur bridge design is often regarded as being invented by Ferdinand Arnodin, a French industrial engineer who had previously specialised in cable-suspended bridges. He designed about 25 such bridges, inventing their spirally-wound double torsion steel wire ropes, as well as several other improvements to bridge safety and solidity. The first of this new generation of suspension bridges built by Arnodin was the Pont de Saint Ilpize, Haut-Loire, completed in 1879. It still exists, having repaired in 2004. Arnodin was responsible for nine of the eighteen known transporter bridges to be built at the end of the 19th century and early part of the 20th century. The transbordeur bridges built by Ferdinand Arnodin were:
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some other transbordeur bridges around the worldNow, some other transbordeur bridges around the world, some still existing and others no more. This list is not exhaustive, structurae.de and museumstuff.com have a few more.
In all, seven transbordeur bridges are still working today. The bridge at Duluth, Minnesota, though it is now an aerial lift bridge, sort of makes an eighth. The seven are
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© abelard, 2010, 05 june
the address for this document is https://www.abelard.org/architecture/transbordeur_bridges1.php |
