They Put a 255-Ton Bridge in Place While the City Slept
The bridge renovation project carried out in Switzerland grabbed attention with a massive operation executed in the dead of night. In Münchenstein, a new 255-ton bridge was hoisted into place with a 1,000-ton crawler crane while the city slumbered. The operation's completion with millimetric precision was the most striking aspect of this engineering feat.
A crane with a capacity of 1,000 tons hoisted a bridge weighing 255 tons.
The placement of the bridge was a highly delicate process, not only due to its weight but also the working conditions. According to EMIL EGGER AG, the crane lifted the 255-ton structure within a working radius of 53 meters.
This detail further complicated the operation. That's because as the load moves away from the center of the crane, the control of movement becomes more precise. Therefore, it was not just about lifting the bridge, but also about lowering it at the right angle and precisely to the prepared point.
The use of a crawler crane was also a significant part of the operation. These types of cranes allow for better weight distribution by applying more balanced pressure to the ground under heavy loads. Consequently, they enable the safer transportation of massive structures in narrow and challenging areas.
Placed with meticulous precision.
Replacing a 255-ton bridge is not merely about lifting it with a powerful machine. It's crucial that the structure is positioned onto its designated supports with minimal deviation. Otherwise, both structural integrity and safety can be compromised.
The operation in Münchenstein was therefore executed with millimetric precision. The night operation, illuminated by powerful lighting, facilitated by constant communication, and guided with careful direction, marked the third and final major crane lifting phase of the bridge renovation project.
This work stands as a striking example of how large infrastructure projects can progress without bringing city life to a grinding halt. Carried out while the city slept, the operation emerged as a colossal engineering feat where power, calculation, and coordination converged.
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