In a feat of precision engineering, the team at Mammoet has successfully executed the scheduled replacement of a railroad bridge spanning the A1 highway in Dortmund/Unna, Germany.
Logistics and heavy-lift operations demand meticulous planning, and this project was no exception. The old bridge had to be removed and replaced with a pre-assembled structure, all while ensuring minimal disruption to traffic and railway operations. With a total weight of approximately 4,000 tons, the bridge move required advanced transport and lifting techniques.
Using 140 axle lines of Self-Propelled Modular Transporters (SPMTs), the team arranged the transport in three paired sets. This setup ensured even weight distribution, allowing for smooth and controlled movement across the designated route. The SPMTs, known for their precision and load-bearing capabilities, played a critical role in maintaining structural stability during transportation.
Before being set into place, the new bridge was filled with gravel, effectively doubling its weight. The additional ballast was a necessary step to optimize load-bearing efficiency and prepare the structure for installation. Once positioned over the highway, the bridge was carefully lowered onto its abutments using climbing jacks, a method that ensures gradual and controlled descent to prevent structural stress.
Projects of this magnitude demand tight scheduling and precise execution. The operation was completed without delays, reinforcing the importance of logistical expertise in infrastructure projects. The A1 highway, a major transportation corridor, was reopened swiftly, minimizing disruption for commuters and commercial transport.
Such complex undertakings highlight the role of heavy-lift specialists in modern infrastructure development. Mammoet‘s ability to deliver on schedule underlines the expertise and coordination required to manage large-scale transport and installation projects efficiently.
