windar
Teller of Tales
The actual cause of this collapse is that the section runs over grounds with peat layers. During construction, the soil has been reinforced with sand/cement pilars in the ground, but this has proven to be an inadequate solution. They would have better driven real reinforced concrete pilars as deep foundation into the ground, put a bridge deck on them and have that carry the road. But that is way more expensive solution.
And we have this from Miami, where a pedestrain bridge collapsed on Thursday killing several people:
Hours before the collapse of a pedestrian bridge at Florida International University on Thursday, the engineering company for the bridge met with the construction manager and representatives from the university and the Florida Department of Transportation to discuss a crack on the structure, according to a statement from the university released early Saturday.
The engineering company, Figg Bridge Engineers, delivered a technical presentation on the crack, the statement said, and “concluded there were no safety concerns and the crack did not compromise the structural integrity of the bridge.”
https://www.nytimes.com/2018/03/17/us/florida-bridge-collapse-crack.html?
One can imagine a parallel universe where Ancient Rome lived to see another millennium and brought the cross to the New World -- but not in the way Isabella and Ferdinand meant it.
Old Slave wrote a story here where the Mayans conquered Europe...