Uploaded December 2024 | Updated September 2026, 2 days ago

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Simulation of a hypothetical Carola Bridge collapse in Dresden, Germany, in September 2024, performed with the Bullet Constraints Builder (BCB) structural simulation software for Blender. The model was built from plans & photos true to scale. Reinforcement and material details were partially estimated based on photos of the collapsed bridge.
en.wikipedia.org/wiki/Carola_Bridge

It has been repeatedly pointed out in the press that the last tram crossed the bridge shortly before it collapsed. This simulation specifically examines a hypothetical scenario: What would have happened if the Carola Bridge collapsed at the exact moment the last tram crossed?

Simulated with BCB: github.com/KaiKostack/bullet-constraints-builder
BCB blog: inachuslaurea.wordpress.com
This software is developed at the Laurea University of Applied Sciences, Finland. Written within the scope of the EU Inachus FP7 Project (607522):
Technological and Methodological Solutions for Integrated Wide Area Situation Awareness and Survivor Localisation to Support Search and Rescue (USaR) Teams.

Music: shadow in the night (HALLOWEEN) - snoozy beats (CC BY)