The design itself was fatally flawed and would have ended up killing a whole lot more people at some point in the future.
Also - the installation itself was beyond stupid. No supports above or below - while allowing traffic to run by underneath.
The following video from an engineer is a great examination of the bridge design itself and the collapse.
He explains that the vertical tower and cables were just a "dummy" suspension bridge "look"---NOT the support system for the bridge.
The ONLY support system for the bridge was a SINGLE LINE of "trusses" consisting of V-shape diagonal concrete columns, that have a single cable inside. If the cable in ANY ONE of those fails or breaks - the bridge was going to come down regardless of how or when it failed.
They were apparently tightening the cable on the first truss when the cable snapped, and down she went.
There was no backup for the design, no redundancy of support, only a single column of concrete trusses to hold up the bridge. No steel in the construction whatsoever, except for whatever cable they had inside the trusses.
It was a disaster just waiting to happen. I suppose better now than if it was open and operating and it collapsed with a bunch of students walking on it AND cars below it.
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