Kohlendreieckbrücke, bridge in Switzerland
The Kohlendreieckbrücke is a railway bridge in Zurich that spans about 394 meters and connects train lines over a complex rail network. The modern structure consists of seven spans supported by sturdy concrete piers and features a special durable road surface used for the first time on such a long railway bridge in Switzerland.
The bridge was built between 2010 and 2015 as part of the Diameter Line project, which created new connections in Zurich's rail network. During construction, engineers solved challenges by installing special steel cables to stabilize cracks in the concrete piers.
The name Kohlendreieck refers to the area's past, when coal was stored here during the age of steam trains. The protected railway building from the 1950s next to the bridge shows how trains have shaped this neighborhood over time.
The bridge is located near the main train station and connects the eastern part of the city with western neighborhoods. Visitors can best view it from the station area or nearby streets where trains regularly pass over the structure.
This was the first railway bridge in Switzerland to use a special non-slip surface system called LVT, originally developed for tunnels. This technology allowed engineers to create a durable solution without traditional gravel layers.
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