Weser Bridge (Porta Westfalica)
Coordinates: 52 ° 14 ′ 33 ″ N , 8 ° 55 ′ 1 ″ E
| Weser Bridge Porta | ||
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| use | Connection between the B 482 and B 61, connection of the Porta train station to the Kaiser Wilhelm monument | |
| Crossing of | Weser | |
| place | Porta Westfalica | |
| construction | Haunted girder / girder bridge | |
| overall length | 382.0 m | |
| width | 23 m | |
| Number of openings | 7th | |
| Longest span | 120.0 m | |
| opening | December 9, 1995 at 2:30 p.m. | |
| location | ||
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The Weser Bridge Porta is a road bridge over the River Weser in the East Westphalian town of Porta Westfalica in North Rhine-Westphalia . It lies in the Weser breakthrough Porta Westfalica and connects the running on both sides of the River Weser, federal roads . The bridge is six kilometers south of the Minden Weser Bridge .
history
First Weser Bridge, Chain Bridge
Between Barkhausen and Hausberge , a chain bridge with a span of 87.9 meters was completed as the first Weser crossing in 1865 . She served the ironworks Porta Westfalica for the transport of coal with a horse powered Lorenbahn from Porta Westfalica to cabin in Barkhausen. The coal had to be brought across the Weser by ferry . Operation of the hut was stopped in 1868 due to high transport costs, but the meter-gauge track on the bridge was preserved for years.
In October 1896 the Kaiser Wilhelm monument was inaugurated, which could be reached across the bridge from Porta train station . To do this, the road to the river had to be led on a dam on the west bank. The bridge was closed at night and bridge fees were charged during the day.
In the final phase of the Second World War, on the morning of April 4, 1945, a command from the 6th Pioneer Replacement Battalion from Minden blew up the building to stop the advance of the Allied troops. The approaching US Army set up a Weser crossing with pontoons a little further north .
Second Weser bridge
After the Second World War, the bridge was rebuilt in the same place. It was a 247.8 meter long box girder bridge in steel construction with three openings and a main span of 106.2 meters. The superstructure assembled on site was at that time the largest fully welded steel superstructure in Germany, which was also implemented for the first time with an orthotropic deck .
The building was opened to traffic on May 29, 1954. Until then, there was a ferry service for pedestrians between the banks. The abutment on the eastern bank was placed on the bank wall, which had to be reinforced for this. In addition, a ramp to the Hotel Kurfürst was built at this point. The bridge was built south of the old chain bridge but was still north of the train station. In the early years, the Minden trolleybus also ran across the bridge .
Third Weser Bridge
On December 9, 1995, the third bridge over the Weser was opened in Porta Westfalica. Together with the Weserauentunnel, it relieves the Barkhausen district of individual traffic . For this purpose, the bridge was built at a new location south of Porta station and the old bridge with its ramps was removed. The new bridge is a steel composite bridge with a box girder superstructure . The superstructure consists of two separate steel box girders, which are closed on all sides, which are haunched and connected to the pre-stressed reinforced concrete deck by means of head bolt dowels .
Automobile traffic continues to flow through the Porta's breakthrough valley. The extension of the B65 over the southern bridge to the west and a tunneling of the Wiehengebirge to the south to the A30 was prevented due to public protests in the planning years after 1970.
Web links
literature
- Eberhard Grunsky , Horst Metzler, Christoph Schmitz: Weser Bridge Porta. The story of a Weser crossing. In: Stahlbau ( ISSN 0038-9145 ), 65th year 1996, No. 5 (from May 1996), pp. 169–179.
Individual evidence
- ^ Porta Westfalica: Ironworks "Porta Westfalica". In: narrowspur-ostwestfalen.de. Retrieved September 22, 2013 .
- ↑ Hermann Kleinebenne: The Weser line. End of war 1945. Oesselmann, Stolzenau 1994, p. 157.
- ↑ Grunsky, Metzler, Schmitz: Weser Bridge Porta. (...), p. 174. (see literature )
- ^ Karl Gotsch: Orthotropic plate. Retrieved September 22, 2013 .
- ^ Chronicle of the city of Minden. In: Alt-Minden. Archived from the original on March 2, 2007 ; Retrieved September 22, 2013 .
- ↑ Grunsky, Metzler, Schmitz: Weser Bridge Porta. (...) (see literature )
- ↑ Barkhausen. In: City of Porta Westfalica. Retrieved February 25, 2016 .