Hörschel bridge over the Werra valley
Coordinates: 51 ° 0 ′ 36 ″ N , 10 ° 13 ′ 52 ″ E
 Hörschel bridge over the Werra valley
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| Convicted | Federal motorway 4 | |
| Subjugated | Werra | |
| place | Hörschel | |
| construction | Prestressed concrete box girder bridge | |
| overall length | 732 m | |
| Longest span | 60 m | |
| Construction height | 4.8 m | |
| height | 85 m | |
| building-costs | 186 million DM | |
| start of building | 1981 | |
| completion | 1983 | |
| opening | 1984 | |
| location | ||
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The Hörschel bridge over the Werra Valley is a large, 13-span valley bridge on federal motorway 4 . With a length of 732 m, it was one of the largest prestressed concrete bridges in the GDR .
The building spans west of Eisenach in the district Hörschel between the Hörschelberg and the keel Forst the valley of the Werra , the national road 1017 (formerly Federal 7a ) and a community access road. It is located between the Herleshausen and Eisenach-West motorway junctions . At the same point in the valley parallel to the motorway bridge, state road 1021 and the Thuringian Railway cross the Werra. In the area of the bridge, the motorway route is almost straight in plan and originally had two lanes and one hard shoulder for each lane. In the course of the six-lane expansion of the A4 between the Herleshausen and Walterhausen junctions, the hard shoulder was dropped in both directions in favor of a third lane. The bridge is part of a concession stretch that begins at kilometer 238.5 near Gotha and ends at kilometer 283.5 near Eisenach on the Hessian-Thuringian border. A private consortium that rebuilt part of the route has maintained the section for 30 years as part of a public-private partnership (PPP) awarded in September 2007.
history
In 1940, the preparatory work for the construction of the motorway bridge began, the design of which was designed by Friedrich Tamms . First of all, material stores and barracks were set up on both banks of the Werra. A siding was laid from the Wartha (Werra) station on the Thuringian Railway to the west bank construction warehouse . On the Tummelsberg near Hörschel, a barracks settlement was built for the unskilled workers to be recruited . On the western slope of the Hörschelberg , a wide strip of forest was cleared for the route and leveling work began, the concrete plant was put into operation and a pillar was built on the eastern side of the valley for material suitability tests. At this stage, the work was stopped, the construction warehouse remained until the 1950s and served as emergency accommodation.
On April 30, 1980, an agreement was reached between the two German states on the construction of the viaduct, which lay directly on the inner-German border . The Federal Republic of Germany financed the project with DM 186 million. In addition to the construction of the Werra Valley Bridge, the road to the west up to the rest area and border checkpoint in Herleshausen and on the east side the motorway route to the Eisenach-West driveway and the Wartha border crossing point had to be built. The structure was erected from 1981 to 1983. During the entire construction period, the building project remained largely unmentioned in the Eisenacher press.
On December 15, 1984, the structure and the new Wartha / Herleshausen border crossing were opened informally to traffic.
Bridge construction
The 13- span prestressed concrete girder bridge is 732 m long, with a maximum span of 60 m for the ten inner spans. It has a superstructure for both directional lanes, which has the continuous beam as a structural support system in the longitudinal direction . In the transverse direction, the superstructure is designed as a hollow box cross-section with a width of approximately 9 m and a constant height of 4.8 m. The cantilevered deck is supported on both sides by compression struts with dimensions of 65 cm × 40 cm at a distance of 7.5 m.
The twelve pillars are a maximum of 80 m high and 9.6 m wide and have a rectangular hollow cross-section.
literature
- J. Wiefel: The engineering geological conditions during the construction of the Werra valley overpass near Hörschel . In: Contributions to the geology of Thuringia . New episode, issue 4. Jena 1997, p. 155-167 .
Web links
Individual evidence
- ↑ DEGES: VDE No. 15, Schematic representation of the current construction and planning status 2005
- ^ Image of the bridge design by Friedrich Tamms from the 1930s
- ↑ Manfred Kaiser: 1075 years of Hörschel . A look into Hörschler's past. Druckhaus Gast and Frisch. Eisenach 2007. pp. 16-23.
- ^ Friedrich Standfuss, Joachim Naumann: Bridges in Germany for roads and ways . Deutscher Bundesverlag, Cologne (Germany), 2006, ISBN 978-3-935064-41-5 ; Pp. 106-107
