Wiesen Viaduct

46.6944444444449.7127777777778Koordinaten: 46 ° 41 ' 40 "N, 9 ° 42' 46" E; CH1903: 773924/173990

F1

Railway Davos - Filisur

Land Water

The Wiesen viaduct is a railway bridge south of Davos Wiesen in Grisons canton of Switzerland. About this bridge carries the railway Davos - Filisur, which is operated by the Rhaetian Railway (RhB ).

Location

The viaduct spans the little river water land just 300 meters southwest of the station and meadows on the south side has a severed footbridge, once you pass the Filisur. At the west end of the viaduct a functionless Hippsche turning disc is received.

History

The Wiesen viaduct was designed by the then chief engineer of the RhB Friedrich Hennings, the building was conducted on the part of RhB by Chief Engineer P. Salaz and the engineer Hans Studer. The work was awarded to Froté, Westermann & Co. in Zurich, which began work in October 1906. On the part of the contractor G. Marasi led the work. In February 1908, they were transferred to the joint venture Davos- Filisur.

Originally proposed the RhB ago to build a steel falsework in the form of a three-hinged arch that would have been created with the help of a suspension bridge -like structure attached to the pillar. This construction would, however requires that first the pillars had been completely supported. But because the construction was behind schedule, they decided on the implementation of the proposed by G. Marasi falsework made ​​of wood. Although this framework was more expensive than the execution in steel, but could without waiting for the fine masonry of the piers are created. It was built by the balanced cantilever starting from the foot points of the pillars and consumed about 600 m³ of wood. The framework has been carried out by the Grisons Zimmermann Richard Coray together with 12 carpenters, the square was used by meadows station for setting the bar. The framework was completed on 1 July 1908. It cost 22,500 francs.

The arch was first built from brick on either side to 35 ° measured from the horizontal, the remaining gap was bricked up in three layers. This approach was chosen to the falsework to charge as little as possible. The first layer was so thin designed so that they could carry only himself and the overlying second layer. The sheets were of several points built of the same which could be prevented that the falsework deformed. Only the last location was bricked up from bottom to top.

Before the onset of winter 1908 major works were completed. In the spring, the building was still understood by a footbridge, which was mounted at the request of communities Davos and Filisur, which also took part in the cost.

With the opening of the railway line on 1 July 1909 324'000 francs expensive viaduct was put into operation.

The viaduct inspired 1926 Ernst Ludwig Kirchner for his painting " Bridge at meadows ."

Specifications

The single-track building is 88.9 m high and 210 m long. It consists of a main arch is 3.7 m wide with a clear width of 55 m and two west and east side four arches of 20 m. A special feature is that the eastern bridge part is not straight, but the outer two side arches are offset so that the track bed has a curve. It is thus after the Langwieser Viaduct is the second largest bridge - and the largest stone arch bridge - the RhB. In addition, it is also the second highest bridge in the RhB after only ten centimeters higher Solis viaduct.