bw BAS 1813

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Builder: Christian Menn<br>She's since on 1 June 1969 the longest railway bridge in Switzerland, will have to be off but expected to 2015 this title the opening on the Letzigrabenbrücke. She was also a 1969 which longest railway bridge made of prestressed concrete in Europe and worldwide the first railway bridge at the concrete joints were applied. It was built within the framework of the beetle mountain line, which connects the train station Oerlikon train station Altstetten, both with the train station Zürich Hardbrücke and Zürich main station. The bridge has a y-shaped floor plan due to a branch. In the first phase of construction the viaduct that connects to the beetles tunnel, produced two tracks Herdern to the branch point. The junction West to Altstetten, called Hardturm I came as a single track to run. In the summer of 1969, the route, which serves mainly the handling of freight, was handed over to rail transport. The second phase of construction with the two-pronged continued of the main line East to the Zurich main station, called the Hardturm II, was only completed after the laying of the marshalling yard of Zürich in the Limmat Valley and on May 23, 1982, along with the new station of Hardbrücke into operation. The viaduct consists of a chain of continuous beams with seven fields that are trained and separated by joints on brake pillars than beam bridges with a maximum 2.21 meter high hollow cross section box. Between the northern abutment and the branching point, two continuous beams with a total length of 478 metres Herdern are arranged. The subsequent Western, single-track construction with three continuous beams is 647,6 meters long, the Eastern, two-pronged 606,4 metres. The Middle spans be 33 feet, the maximum on the Limmat 43 meters. To minimize the construction maintenance superstructure mounted on the maximum 1,0 metres thick and up to 24 meters high pillars of rule atop concrete joints instead of conventional bearings. Previously, these new components with laboratory tests in 1:1 scale had been analyzed.[(Wikipedia) GPS coordinates