Rudolf Modrzejewski Bridge
Coordinates: 53 ° 8 ′ 39 ″ N , 18 ° 10 ′ 18 ″ E
| Rudolf Modrzejewski Bridge | ||
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| Official name | Most fordoński im. Rudolfa Modrzejewskiego w Bydgoszczy | |
| use | Railway, state road 
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| Crossing of | Vistula | |
| place | Bydgoszcz - Fordon | |
| overall length | 1325 m / 1005 m | |
| start of building | 1891/1952 | |
| completion | 1893/1956 | |
| planner | Georg Christoph Mehrtens (1891), Jerzy Szaniawski (1950) |
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The Rudolf Modrzejewski Bridge (in Germany also Vistula Bridge near Fordon ) is a road and railway bridge near Fordon , today's district of Bydgoszcz ( Bromberg ) in Poland . It leads the railway line Bydgoszcz - Chełmża ( Culmsee ) - Kowalewo Pomorskie ( Schönsee ) and the national road 80 to Toruń ( Thorn ) below the mouth of the Brda ( Brahe ) over the Vistula . It was the longest bridge in the German Empire and, from 1920, in Poland . Bydgoszcz is still an important railway junction today . a. for the connections from Gdansk , Warsaw and Poznan .
Vistula Bridge near Fordon (1893)
The first railway bridge over the Vistula was the Dirschau Bridge, opened in 1857 in what was then the Kingdom of Prussia . They were followed in the 1870s by the Vistula bridges in Thorn ( Toruń ) and Graudenz ( Grudziądz ). The unexpectedly strong increase in traffic made a second, double-track bridge near Dirschau necessary on the Berlin - Königsberg - Saint Petersburg route in the early 1890s. At the same time, the Prussian Eastern Railway and its Royal Railway Direction Bromberg in the province of Posen had the Vistula Bridge built at Fordon as part of the planned railway line Bromberg - Fordon - Culmsee - Schönsee.
It was planned by Georg Christoph Mehrtens , the decoration of the end finishes and the land pillars were designed by the architect Johann Eduard Jacobsthal . The steel truss bridge had 5 stream openings with pillar spacing of 100 m and 13 foreland openings with pillar spacing of 62 m each. It served the single-track rail traffic and road traffic. With a total length of 1325 m, it was the longest of the Vistula bridges and the longest railway bridge in Germany.
The construction was carried out from a strategic point of view and cost 9 million marks.
The flow openings had semi-parabolic girders with spans of 98.5 m, the approach bridges consisted of parallel-chorded trusses with spans of 60.5 m. The roadway lay over the lower chords and was 10.8 m wide. It was divided lengthways by a grid into 4.15 m wide for the railroad and 6.5 m wide for road traffic. Outside the bridge girders, a 1.5 m wide footpath was built on both sides, with the one upstream being reserved for service personnel. Each superstructure had upper and lower inspection cars from which the construction could be checked.
The Vistula Bridge near Fordon was the first major bridge in Germany with a steel superstructure . The semi-parabolic girders of the five stream openings made from Siemens-Martin steel were supplied by Gutehoffnungshütte from their plant in Oberhausen - Sterkrade , the parallel girders of the foreland bridges made of Thomasstahl came from the Aachener Hütten-Aktien-Verein to Rothe Erde of the Duisburg company Harkort . This was preceded by the most extensive and comprehensive tests of steel parts for bridge constructions to date.
War damage
The bridge was partly badly damaged as a result of the Second World War . On September 3, 1939, it was blown up by Polish engineers to stop the German invaders . In autumn 1941 it was rebuilt by the Germans. On January 21, 1945 it was blown up by the German troops retreating from the Red Army .
Rudolf Modrzejewski Bridge (1956)
Between 1952 and 1956 the bridge was rebuilt according to plans by Jerzy Szaniawski, with the steel framework construction based on the appearance of the old bridge. The river bed was cleared of rubble and the old pillars were removed down to the foundations. Parts of the old bridge were used in 1954 to build the Oder bridge near Brieg , the old approach bridges were reused for smaller bridges elsewhere. In order to save costs, only 8 approach bridges were built, which are now connected to a heaped dam. The entire length of the current bridge was thereby shortened to 1005.5 m.
The current bridge is again a combined rail and road bridge with a single-lane track and a two-lane road separated from it by a grid. Outside the steel girders there is a footpath and bike path. From 2002 to September 2008 it was only used as a road bridge.
On May 15, 2008, the bridge was named after the Polish engineer Rudolf Modrzejewski, who, as Ralph Modjeski, became one of the most important bridge builders in the USA and Canada at the beginning of the twentieth century .
Web links
Individual evidence
- ^ New Vistula Bridge near Fordon ... In: Centralblatt der Bauverwaltung . Volume X, No. 46 (from November 15, 1890), p. 471 ( digitized , on kobv.de)
- ^ Vistula bridge near Fordon. In: Centralblatt der Bauverwaltung . Volume XIII, No. 43 (from October 28, 1893), p. 452 ( digitized , on kobv.de)
- ↑ On the construction of the Fordon Vistula Bridge. In: Centralblatt der Bauverwaltung . XIII. Volume, No. 25 (from June 24, 1893), p. 263 ( digitized , on kobv.de)
- ↑ Up until then, wrought iron was used almost exclusively in bridge construction .
- ↑ River iron superstructures of the Vistula Bridge near Fordon. In: Centralblatt der Bauverwaltung . XI. Volume, No. 40 (from October 3, 1891), p. 392 ( digitized , on kobv.de)
- ^ Georg Christoph Mehrtens: The examination of the fluvial iron of the Fordon Vistula bridge. In: Centralblatt der Bauverwaltung . XII. Volume, No. 27 (from July 2, 1892), p. 285 ( digitized , on kobv.de)
- ↑ Most Fordonski ( Memento of the original from April 2, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. on TMMB.pl
