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Swamps outside New Orleans.
In: Engineering
It’s a railroad raised bridge building machine. It was likely assembled for this specific project, but the idea is used frequently. In this case it is being used for an upgrade – it assume a continuous track is being replaced but that it can uses track in front of it to move forward.
It’s half a transport and placement system for prefabricated parts (the yellow bit can move big piers forward and then drop them into place) and a pile driver for …. doing what pile drivers do.
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