Sand Bridge (Wroclaw)

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Coordinates: 51 ° 6 ′ 49 ″  N , 17 ° 2 ′ 23 ″  E

Sand bridge
Sand bridge
Sand bridge seen from the east (sand island on the right)
Official name most Piaskowy
use Road bridge with tram tracks
Crossing of Or
place Wroclaw
Entertained by Zarząd Dróg i Utrzymania Miasta we Wrocławiu
construction Lattice girder bridge
overall length 31.74 m
width 12.02 m
Number of openings a
Clear width 28.25 m (90 feet)
completion 1861
planner Ernst Uber
location
Sand Bridge (Wroclaw) (Poland)
Sand Bridge (Wroclaw)

Sand Bridge ( Polish most Piaskowy ) is an Oder bridge in Wroclaw , which connects the old town with the sand island . The bridge, built in 1861, is the oldest surviving bridge in the city. After the Second World War, the historical name was translated literally.

history

Predecessor bridges

Together with the mill bridge, the sand bridge is one of the oldest bridges in the city of Wroclaw. The bridge got its name from the island to which it leads. This, in turn, was called less because of the sandy bottom, but rather derived from the church of Our Lady on the Sand located on it, which looks like a chapel Sta. Maria in the arena in Padua .

The bridge was mentioned for the first time in 1149 and the following year. In 1423 it came in a procession to the disaster , as the bridge of the large crowd did not stand up. Representations of the wooden sand bridge built in 1594 with six openings are known from the 17th century, including a field constructed as a bascule bridge . After it was destroyed by floods in February 1709, a wooden suspension bridge was built in the 18th century that managed with a river pier. Finally, in the 19th century, there was a wooden girder bridge with three openings.

The bridge from 1861

The last wooden bridge was replaced by a riveted wrought iron bridge in 1861 . This bridge, planned by master bricklayer Ernst Uber, the iron parts of which were built by GH von Ruffer'sche Maschinenfabrik (which later became the Linke-Hofmann-Busch company ), was the third wrought iron bridge in Wroclaw. The roadway was made of wooden planking and the sidewalks of mastic asphalt on cast iron plates. The bridge underwent a major renovation in 1893, when the electric tram was passed over it and the road surface was replaced by stone paving made of Zore-iron . In 1934, the bridge was thoroughly rebuilt again when it was raised by approx. 60 cm for flood protection reasons .

In the post-war period, the renovation work on the sand bridge, which was undamaged in World War II but heavily worn, meant that apart from the striking lattice girders and the railings, the building fabric was almost completely replaced. In 1976 the bridge was registered as a single monument. In 1989 the road surface and pavement were renewed with the entire substructure including cross members. During the next renovation in 2009, the bridge lost its sand-colored paint, which had to give way to a strong shade of red . The lanterns that framed the girders , dismantled in the 1960s , were reconstructed in a slightly different form.

description

Sand bridge with the market hall No. 1 in the background

The structure of the one-bay bridge consists of two riveted lattice girders. The spaces between the upper and lower chords, which are made of layered sheet metal, are filled with vertical flat iron and diagonally inclined L-profiles . Further vertical reinforcements on the inside of the girders are T-shaped in cross-section and serve to stabilize them in the transverse direction. Between the girders there is a paved roadway with two embedded tram tracks ( grooved rails ), which are placed on cross girders with a superstructure made of steel plates. The sidewalks are built on the outside of the girders on cantilever arms of the cross girders. The cast iron railings are adorned with a grid pattern in the foot zone and subtle floral patterns in the cornice zone. Lamp posts made of steel are set up at the head of the girders. While the original lanterns rested on octagonal plinths leaning directly against the girders, the contemporary reconstructions are placed on round pedestals a few centimeters apart.

Web links

Commons : Sand Bridge (Wroclaw)  - Collection of images, videos and audio files

Individual evidence

  1. ^ Johann Wilhelm Schwedler: Short and long Oder bridge in Breslau . In: Journal of Construction . tape 43 , no. 4-7 , 1868, pp. 157-174 ( kobv.de [PDF]).
  2. ↑ List of monuments of the city of Wroclaw, status January 17th, 2011

literature