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Chain Bridge (Nuremberg)

The Chain Bridge (German: Kettensteg) is a pedestrian chain bridge in Nuremberg, Germany. The bridge crosses the river Pegnitz just a few meters upriver of Fronveste and Schlayerturm, fortifications in the course of the medieval city wall guarding the river's exit from the town. It connects Maxplatz in Sebalder Altstadt (the old quarter north of the river) with Untere Kreuzgasse in Lorenz, the quarter on the south side of the river.

Chain Bridge

Kettensteg
Coordinates49°27′14.8″N 11°04′14.83″E / 49.454111°N 11.0707861°E / 49.454111; 11.0707861
Carriespedestrians
CrossesPegnitz
LocaleNuremberg, Germany
Characteristics
DesignChain bridge
MaterialWrought iron
Total length68 m
Longest span33 m
No. of spanstwo
History
DesignerConrad Georg Kuppler
Construction start1824
Construction end1824
Location

The Chain Bridge was built in 1824 and is thus the oldest chain bridge on the European continent.[1] It was not given any specific name, but the public used to call it by what it appeared to be: a narrow pedestrian bridge (German: Steg) with chains (German: Ketten).

The bridge has two spans of 33 m each and a total length of 68 m. On either side, there are two strands of wrought iron eyebars, originally supported by three wooden towers standing on the banks of the river and on the small island, and anchored in solid masonry blocks on either side. The wooden deck was suspended from the chains by hangers, also of wrought iron.

The wooden towers were damaged by the very high floods of 1909 and, thereafter, replaced by towers of iron trusses still in existence.

As in most early suspension bridges, its bridge deck was not stiff and easily developed swaying motions under the steps of the pedestrians—and some youths enjoyed provoking the swaying on purpose. Eventually, in 1927 a police ordinance was issued in order to stop such dangerous actions. In 1930, the bridge deck was stiffened by steel girders and wooden piles were placed in the river supporting the deck. In the Nazi era, the official opinion was to remove it altogether, which was only prevented by the outbreak of war in 1939.

In 2009, the wooden piles were not safe any more and the bridge had to be closed. Substantial donations of citizens and local companies allowed a complete reconstruction, using as much as possible of the original structure and reinstating the suspension bridge structure without any other supports. The renewed wooden deck was stiffened by integrating a flat steel box girder into it, which is hardly visible. On 22 December 2010 the bridge was reopened to pedestrian use.

See also

References

  1. ^ Older examples were James Finley's Jacob's Creek Bridge in Pennsylvania, United States (1808, demolished 1833), and, in Great Britain, Dryburgh Abbey Bridge (1817) and 137 m Union Bridge (1820). Dufour's Saint Antoine Bridge in Geneva (1823) was the first wire cable suspension bridge.

External links

  • Chain Bridge at Structurae
  • Nürnberger Kettensteg, a detailed description of the bridge and its reconstruction, by BauLust, the initiative who brought it about, in German
  • Der Kettensteg in Nürnberg, a comprehensive description by Nuernberginfos.de, in German

chain, bridge, nuremberg, chain, bridge, german, kettensteg, pedestrian, chain, bridge, nuremberg, germany, bridge, crosses, river, pegnitz, just, meters, upriver, fronveste, schlayerturm, fortifications, course, medieval, city, wall, guarding, river, exit, fr. The Chain Bridge German Kettensteg is a pedestrian chain bridge in Nuremberg Germany The bridge crosses the river Pegnitz just a few meters upriver of Fronveste and Schlayerturm fortifications in the course of the medieval city wall guarding the river s exit from the town It connects Maxplatz in Sebalder Altstadt the old quarter north of the river with Untere Kreuzgasse in Lorenz the quarter on the south side of the river Chain BridgeKettenstegCoordinates49 27 14 8 N 11 04 14 83 E 49 454111 N 11 0707861 E 49 454111 11 0707861CarriespedestriansCrossesPegnitzLocaleNuremberg GermanyCharacteristicsDesignChain bridgeMaterialWrought ironTotal length68 mLongest span33 mNo of spanstwoHistoryDesignerConrad Georg KupplerConstruction start1824Construction end1824LocationThe Chain Bridge was built in 1824 and is thus the oldest chain bridge on the European continent 1 It was not given any specific name but the public used to call it by what it appeared to be a narrow pedestrian bridge German Steg with chains German Ketten The bridge has two spans of 33 m each and a total length of 68 m On either side there are two strands of wrought iron eyebars originally supported by three wooden towers standing on the banks of the river and on the small island and anchored in solid masonry blocks on either side The wooden deck was suspended from the chains by hangers also of wrought iron The wooden towers were damaged by the very high floods of 1909 and thereafter replaced by towers of iron trusses still in existence As in most early suspension bridges its bridge deck was not stiff and easily developed swaying motions under the steps of the pedestrians and some youths enjoyed provoking the swaying on purpose Eventually in 1927 a police ordinance was issued in order to stop such dangerous actions In 1930 the bridge deck was stiffened by steel girders and wooden piles were placed in the river supporting the deck In the Nazi era the official opinion was to remove it altogether which was only prevented by the outbreak of war in 1939 In 2009 the wooden piles were not safe any more and the bridge had to be closed Substantial donations of citizens and local companies allowed a complete reconstruction using as much as possible of the original structure and reinstating the suspension bridge structure without any other supports The renewed wooden deck was stiffened by integrating a flat steel box girder into it which is hardly visible On 22 December 2010 the bridge was reopened to pedestrian use See also Edit Transport portal Engineering portal Germany portalReferences Edit Older examples were James Finley s Jacob s Creek Bridge in Pennsylvania United States 1808 demolished 1833 and in Great Britain Dryburgh Abbey Bridge 1817 and 137 m Union Bridge 1820 Dufour s Saint Antoine Bridge in Geneva 1823 was the first wire cable suspension bridge External links Edit Wikimedia Commons has media related to Kettensteg Chain Bridge at Structurae Nurnberger Kettensteg a detailed description of the bridge and its reconstruction by BauLust the initiative who brought it about in German Der Kettensteg in Nurnberg a comprehensive description by Nuernberginfos de in German Retrieved from https en wikipedia org w index php title Chain Bridge Nuremberg amp oldid 1003448633, wikipedia, wiki, book, books, library,

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